17bc82500SRobert Watson /*- 27bc82500SRobert Watson * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson 37bc82500SRobert Watson * Copyright (c) 2001 Ilmar S. Habibulin 47bc82500SRobert Watson * Copyright (c) 2001, 2002 Networks Associates Technology, Inc. 57bc82500SRobert Watson * All rights reserved. 67bc82500SRobert Watson * 77bc82500SRobert Watson * This software was developed by Robert Watson and Ilmar Habibulin for the 87bc82500SRobert Watson * TrustedBSD Project. 97bc82500SRobert Watson * 107bc82500SRobert Watson * This software was developed for the FreeBSD Project in part by NAI Labs, 117bc82500SRobert Watson * the Security Research Division of Network Associates, Inc. under 127bc82500SRobert Watson * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA 137bc82500SRobert Watson * CHATS research program. 147bc82500SRobert Watson * 157bc82500SRobert Watson * Redistribution and use in source and binary forms, with or without 167bc82500SRobert Watson * modification, are permitted provided that the following conditions 177bc82500SRobert Watson * are met: 187bc82500SRobert Watson * 1. Redistributions of source code must retain the above copyright 197bc82500SRobert Watson * notice, this list of conditions and the following disclaimer. 207bc82500SRobert Watson * 2. Redistributions in binary form must reproduce the above copyright 217bc82500SRobert Watson * notice, this list of conditions and the following disclaimer in the 227bc82500SRobert Watson * documentation and/or other materials provided with the distribution. 237bc82500SRobert Watson * 3. The names of the authors may not be used to endorse or promote 247bc82500SRobert Watson * products derived from this software without specific prior written 257bc82500SRobert Watson * permission. 267bc82500SRobert Watson * 277bc82500SRobert Watson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 287bc82500SRobert Watson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 297bc82500SRobert Watson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 307bc82500SRobert Watson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 317bc82500SRobert Watson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 327bc82500SRobert Watson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 337bc82500SRobert Watson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 347bc82500SRobert Watson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 357bc82500SRobert Watson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 367bc82500SRobert Watson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 377bc82500SRobert Watson * SUCH DAMAGE. 387bc82500SRobert Watson * 397bc82500SRobert Watson * $FreeBSD$ 407bc82500SRobert Watson */ 417bc82500SRobert Watson /* 427bc82500SRobert Watson * Developed by the TrustedBSD Project. 437bc82500SRobert Watson * 447bc82500SRobert Watson * Framework for extensible kernel access control. Kernel and userland 457bc82500SRobert Watson * interface to the framework, policy registration and composition. 467bc82500SRobert Watson */ 477bc82500SRobert Watson 487bc82500SRobert Watson #include "opt_mac.h" 49f9d0d524SRobert Watson 507bc82500SRobert Watson #include <sys/param.h> 5195fab37eSRobert Watson #include <sys/extattr.h> 5295fab37eSRobert Watson #include <sys/kernel.h> 5395fab37eSRobert Watson #include <sys/lock.h> 54b656366bSBruce Evans #include <sys/malloc.h> 5595fab37eSRobert Watson #include <sys/mutex.h> 5695fab37eSRobert Watson #include <sys/mac.h> 577ba28492SRobert Watson #include <sys/module.h> 5895fab37eSRobert Watson #include <sys/proc.h> 5995fab37eSRobert Watson #include <sys/systm.h> 607bc82500SRobert Watson #include <sys/sysproto.h> 617bc82500SRobert Watson #include <sys/sysent.h> 6295fab37eSRobert Watson #include <sys/vnode.h> 6395fab37eSRobert Watson #include <sys/mount.h> 6495fab37eSRobert Watson #include <sys/file.h> 6595fab37eSRobert Watson #include <sys/namei.h> 6695fab37eSRobert Watson #include <sys/socket.h> 6795fab37eSRobert Watson #include <sys/pipe.h> 6895fab37eSRobert Watson #include <sys/socketvar.h> 6995fab37eSRobert Watson #include <sys/sysctl.h> 7095fab37eSRobert Watson 7195fab37eSRobert Watson #include <vm/vm.h> 7295fab37eSRobert Watson #include <vm/pmap.h> 7395fab37eSRobert Watson #include <vm/vm_map.h> 7495fab37eSRobert Watson #include <vm/vm_object.h> 7595fab37eSRobert Watson 7695fab37eSRobert Watson #include <sys/mac_policy.h> 7795fab37eSRobert Watson 7895fab37eSRobert Watson #include <fs/devfs/devfs.h> 7995fab37eSRobert Watson 8095fab37eSRobert Watson #include <net/bpfdesc.h> 8195fab37eSRobert Watson #include <net/if.h> 8295fab37eSRobert Watson #include <net/if_var.h> 8395fab37eSRobert Watson 8495fab37eSRobert Watson #include <netinet/in.h> 8595fab37eSRobert Watson #include <netinet/ip_var.h> 8695fab37eSRobert Watson 8795fab37eSRobert Watson #ifdef MAC 8895fab37eSRobert Watson 897ba28492SRobert Watson /* 907ba28492SRobert Watson * Declare that the kernel provides MAC support, version 1. This permits 917ba28492SRobert Watson * modules to refuse to be loaded if the necessary support isn't present, 927ba28492SRobert Watson * even if it's pre-boot. 937ba28492SRobert Watson */ 947ba28492SRobert Watson MODULE_VERSION(kernel_mac_support, 1); 957ba28492SRobert Watson 9695fab37eSRobert Watson SYSCTL_DECL(_security); 9795fab37eSRobert Watson 9895fab37eSRobert Watson SYSCTL_NODE(_security, OID_AUTO, mac, CTLFLAG_RW, 0, 9995fab37eSRobert Watson "TrustedBSD MAC policy controls"); 10095fab37eSRobert Watson SYSCTL_NODE(_security_mac, OID_AUTO, debug, CTLFLAG_RW, 0, 10195fab37eSRobert Watson "TrustedBSD MAC debug info"); 10295fab37eSRobert Watson 10395fab37eSRobert Watson static int mac_debug_label_fallback = 0; 10495fab37eSRobert Watson SYSCTL_INT(_security_mac_debug, OID_AUTO, label_fallback, CTLFLAG_RW, 10595fab37eSRobert Watson &mac_debug_label_fallback, 0, "Filesystems should fall back to fs label" 10695fab37eSRobert Watson "when label is corrupted."); 10795fab37eSRobert Watson TUNABLE_INT("security.mac.debug_label_fallback", 10895fab37eSRobert Watson &mac_debug_label_fallback); 10995fab37eSRobert Watson 11095fab37eSRobert Watson #ifndef MAC_MAX_POLICIES 11195fab37eSRobert Watson #define MAC_MAX_POLICIES 8 11295fab37eSRobert Watson #endif 11395fab37eSRobert Watson #if MAC_MAX_POLICIES > 32 11495fab37eSRobert Watson #error "MAC_MAX_POLICIES too large" 11595fab37eSRobert Watson #endif 11695fab37eSRobert Watson static unsigned int mac_max_policies = MAC_MAX_POLICIES; 11795fab37eSRobert Watson static unsigned int mac_policy_offsets_free = (1 << MAC_MAX_POLICIES) - 1; 11895fab37eSRobert Watson SYSCTL_UINT(_security_mac, OID_AUTO, max_policies, CTLFLAG_RD, 11995fab37eSRobert Watson &mac_max_policies, 0, ""); 12095fab37eSRobert Watson 12195fab37eSRobert Watson static int mac_late = 0; 12295fab37eSRobert Watson 12395fab37eSRobert Watson static int mac_enforce_fs = 1; 12495fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_fs, CTLFLAG_RW, 12595fab37eSRobert Watson &mac_enforce_fs, 0, "Enforce MAC policy on file system objects"); 12695fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_fs", &mac_enforce_fs); 12795fab37eSRobert Watson 12895fab37eSRobert Watson static int mac_enforce_network = 1; 12995fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_network, CTLFLAG_RW, 13095fab37eSRobert Watson &mac_enforce_network, 0, "Enforce MAC policy on network packets"); 13195fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_network", &mac_enforce_network); 13295fab37eSRobert Watson 133b88c98f6SRobert Watson static int mac_enforce_pipe = 1; 134b88c98f6SRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_pipe, CTLFLAG_RW, 135b88c98f6SRobert Watson &mac_enforce_pipe, 0, "Enforce MAC policy on pipe operations"); 136c031391bSRobert Watson TUNABLE_INT("security.mac.enforce_pipe", &mac_enforce_pipe); 137b88c98f6SRobert Watson 13895fab37eSRobert Watson static int mac_enforce_process = 1; 13995fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_process, CTLFLAG_RW, 14095fab37eSRobert Watson &mac_enforce_process, 0, "Enforce MAC policy on inter-process operations"); 14195fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_process", &mac_enforce_process); 14295fab37eSRobert Watson 14395fab37eSRobert Watson static int mac_enforce_socket = 1; 14495fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_socket, CTLFLAG_RW, 14595fab37eSRobert Watson &mac_enforce_socket, 0, "Enforce MAC policy on socket operations"); 14695fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_socket", &mac_enforce_socket); 14795fab37eSRobert Watson 148ca7850c3SRobert Watson static int mac_enforce_vm = 1; 149ca7850c3SRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_vm, CTLFLAG_RW, 150ca7850c3SRobert Watson &mac_enforce_vm, 0, "Enforce MAC policy on vm operations"); 151c031391bSRobert Watson TUNABLE_INT("security.mac.enforce_vm", &mac_enforce_vm); 152ca7850c3SRobert Watson 15395fab37eSRobert Watson static int mac_label_size = sizeof(struct mac); 15495fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, label_size, CTLFLAG_RD, 15595fab37eSRobert Watson &mac_label_size, 0, "Pre-compiled MAC label size"); 15695fab37eSRobert Watson 15795fab37eSRobert Watson static int mac_cache_fslabel_in_vnode = 1; 15895fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, cache_fslabel_in_vnode, CTLFLAG_RW, 15995fab37eSRobert Watson &mac_cache_fslabel_in_vnode, 0, "Cache mount fslabel in vnode"); 16095fab37eSRobert Watson TUNABLE_INT("security.mac.cache_fslabel_in_vnode", 16195fab37eSRobert Watson &mac_cache_fslabel_in_vnode); 16295fab37eSRobert Watson 16395fab37eSRobert Watson static int mac_vnode_label_cache_hits = 0; 16495fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD, 16595fab37eSRobert Watson &mac_vnode_label_cache_hits, 0, "Cache hits on vnode labels"); 16695fab37eSRobert Watson static int mac_vnode_label_cache_misses = 0; 16795fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD, 16895fab37eSRobert Watson &mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels"); 169c0f39905SRobert Watson 170c0f39905SRobert Watson static int mac_mmap_revocation = 1; 171c0f39905SRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation, CTLFLAG_RW, 172c0f39905SRobert Watson &mac_mmap_revocation, 0, "Revoke mmap access to files on subject " 173c0f39905SRobert Watson "relabel"); 17499fa64f8SRobert Watson static int mac_mmap_revocation_via_cow = 0; 17595fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW, 17695fab37eSRobert Watson &mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via " 17795fab37eSRobert Watson "copy-on-write semantics, or by removing all write access"); 17895fab37eSRobert Watson 179f050add5SRobert Watson #ifdef MAC_DEBUG 18095fab37eSRobert Watson static unsigned int nmacmbufs, nmaccreds, nmacifnets, nmacbpfdescs, 18195fab37eSRobert Watson nmacsockets, nmacmounts, nmactemp, nmacvnodes, nmacdevfsdirents, 18295fab37eSRobert Watson nmacipqs, nmacpipes; 18395fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, mbufs, CTLFLAG_RD, 18495fab37eSRobert Watson &nmacmbufs, 0, "number of mbufs in use"); 18595fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, creds, CTLFLAG_RD, 18695fab37eSRobert Watson &nmaccreds, 0, "number of ucreds in use"); 18795fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, ifnets, CTLFLAG_RD, 18895fab37eSRobert Watson &nmacifnets, 0, "number of ifnets in use"); 18995fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, ipqs, CTLFLAG_RD, 19095fab37eSRobert Watson &nmacipqs, 0, "number of ipqs in use"); 19195fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, bpfdescs, CTLFLAG_RD, 19295fab37eSRobert Watson &nmacbpfdescs, 0, "number of bpfdescs in use"); 19395fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, sockets, CTLFLAG_RD, 19495fab37eSRobert Watson &nmacsockets, 0, "number of sockets in use"); 19595fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, pipes, CTLFLAG_RD, 19695fab37eSRobert Watson &nmacpipes, 0, "number of pipes in use"); 19795fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, mounts, CTLFLAG_RD, 19895fab37eSRobert Watson &nmacmounts, 0, "number of mounts in use"); 19995fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, temp, CTLFLAG_RD, 20095fab37eSRobert Watson &nmactemp, 0, "number of temporary labels in use"); 20195fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, vnodes, CTLFLAG_RD, 20295fab37eSRobert Watson &nmacvnodes, 0, "number of vnodes in use"); 20395fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, devfsdirents, CTLFLAG_RD, 20495fab37eSRobert Watson &nmacdevfsdirents, 0, "number of devfs dirents inuse"); 205f050add5SRobert Watson #endif 20695fab37eSRobert Watson 20795fab37eSRobert Watson static int error_select(int error1, int error2); 20895fab37eSRobert Watson static int mac_externalize(struct label *label, struct mac *mac); 20995fab37eSRobert Watson static int mac_policy_register(struct mac_policy_conf *mpc); 21095fab37eSRobert Watson static int mac_policy_unregister(struct mac_policy_conf *mpc); 21195fab37eSRobert Watson 21295fab37eSRobert Watson static int mac_stdcreatevnode_ea(struct vnode *vp); 21395fab37eSRobert Watson static void mac_cred_mmapped_drop_perms(struct thread *td, 21495fab37eSRobert Watson struct ucred *cred); 21595fab37eSRobert Watson static void mac_cred_mmapped_drop_perms_recurse(struct thread *td, 21695fab37eSRobert Watson struct ucred *cred, struct vm_map *map); 21795fab37eSRobert Watson 21895fab37eSRobert Watson MALLOC_DEFINE(M_MACOPVEC, "macopvec", "MAC policy operation vector"); 21995fab37eSRobert Watson MALLOC_DEFINE(M_MACPIPELABEL, "macpipelabel", "MAC labels for pipes"); 22095fab37eSRobert Watson 22195fab37eSRobert Watson /* 22295fab37eSRobert Watson * mac_policy_list_lock protects the consistency of 'mac_policy_list', 22395fab37eSRobert Watson * the linked list of attached policy modules. Read-only consumers of 22495fab37eSRobert Watson * the list must acquire a shared lock for the duration of their use; 22595fab37eSRobert Watson * writers must acquire an exclusive lock. Note that for compound 22695fab37eSRobert Watson * operations, locks should be held for the entire compound operation, 22795fab37eSRobert Watson * and that this is not yet done for relabel requests. 22895fab37eSRobert Watson */ 22995fab37eSRobert Watson static struct mtx mac_policy_list_lock; 23095fab37eSRobert Watson static LIST_HEAD(, mac_policy_conf) mac_policy_list; 23195fab37eSRobert Watson static int mac_policy_list_busy; 23295fab37eSRobert Watson #define MAC_POLICY_LIST_LOCKINIT() mtx_init(&mac_policy_list_lock, \ 23395fab37eSRobert Watson "mac_policy_list_lock", NULL, MTX_DEF); 23495fab37eSRobert Watson #define MAC_POLICY_LIST_LOCK() mtx_lock(&mac_policy_list_lock); 23595fab37eSRobert Watson #define MAC_POLICY_LIST_UNLOCK() mtx_unlock(&mac_policy_list_lock); 23695fab37eSRobert Watson 23795fab37eSRobert Watson #define MAC_POLICY_LIST_BUSY() do { \ 23895fab37eSRobert Watson MAC_POLICY_LIST_LOCK(); \ 23995fab37eSRobert Watson mac_policy_list_busy++; \ 24095fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); \ 24195fab37eSRobert Watson } while (0) 24295fab37eSRobert Watson 24395fab37eSRobert Watson #define MAC_POLICY_LIST_UNBUSY() do { \ 24495fab37eSRobert Watson MAC_POLICY_LIST_LOCK(); \ 24595fab37eSRobert Watson mac_policy_list_busy--; \ 24695fab37eSRobert Watson if (mac_policy_list_busy < 0) \ 24795fab37eSRobert Watson panic("Extra mac_policy_list_busy--"); \ 24895fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); \ 24995fab37eSRobert Watson } while (0) 25095fab37eSRobert Watson 25195fab37eSRobert Watson /* 25295fab37eSRobert Watson * MAC_CHECK performs the designated check by walking the policy 25395fab37eSRobert Watson * module list and checking with each as to how it feels about the 25495fab37eSRobert Watson * request. Note that it returns its value via 'error' in the scope 25595fab37eSRobert Watson * of the caller. 25695fab37eSRobert Watson */ 25795fab37eSRobert Watson #define MAC_CHECK(check, args...) do { \ 25895fab37eSRobert Watson struct mac_policy_conf *mpc; \ 25995fab37eSRobert Watson \ 26095fab37eSRobert Watson error = 0; \ 26195fab37eSRobert Watson MAC_POLICY_LIST_BUSY(); \ 26295fab37eSRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 26395fab37eSRobert Watson if (mpc->mpc_ops->mpo_ ## check != NULL) \ 26495fab37eSRobert Watson error = error_select( \ 26595fab37eSRobert Watson mpc->mpc_ops->mpo_ ## check (args), \ 26695fab37eSRobert Watson error); \ 26795fab37eSRobert Watson } \ 26895fab37eSRobert Watson MAC_POLICY_LIST_UNBUSY(); \ 26995fab37eSRobert Watson } while (0) 27095fab37eSRobert Watson 27195fab37eSRobert Watson /* 27295fab37eSRobert Watson * MAC_BOOLEAN performs the designated boolean composition by walking 27395fab37eSRobert Watson * the module list, invoking each instance of the operation, and 27495fab37eSRobert Watson * combining the results using the passed C operator. Note that it 27595fab37eSRobert Watson * returns its value via 'result' in the scope of the caller, which 27695fab37eSRobert Watson * should be initialized by the caller in a meaningful way to get 27795fab37eSRobert Watson * a meaningful result. 27895fab37eSRobert Watson */ 27995fab37eSRobert Watson #define MAC_BOOLEAN(operation, composition, args...) do { \ 28095fab37eSRobert Watson struct mac_policy_conf *mpc; \ 28195fab37eSRobert Watson \ 28295fab37eSRobert Watson MAC_POLICY_LIST_BUSY(); \ 28395fab37eSRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 28495fab37eSRobert Watson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 28595fab37eSRobert Watson result = result composition \ 28695fab37eSRobert Watson mpc->mpc_ops->mpo_ ## operation (args); \ 28795fab37eSRobert Watson } \ 28895fab37eSRobert Watson MAC_POLICY_LIST_UNBUSY(); \ 28995fab37eSRobert Watson } while (0) 29095fab37eSRobert Watson 29195fab37eSRobert Watson /* 29295fab37eSRobert Watson * MAC_PERFORM performs the designated operation by walking the policy 29395fab37eSRobert Watson * module list and invoking that operation for each policy. 29495fab37eSRobert Watson */ 29595fab37eSRobert Watson #define MAC_PERFORM(operation, args...) do { \ 29695fab37eSRobert Watson struct mac_policy_conf *mpc; \ 29795fab37eSRobert Watson \ 29895fab37eSRobert Watson MAC_POLICY_LIST_BUSY(); \ 29995fab37eSRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 30095fab37eSRobert Watson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 30195fab37eSRobert Watson mpc->mpc_ops->mpo_ ## operation (args); \ 30295fab37eSRobert Watson } \ 30395fab37eSRobert Watson MAC_POLICY_LIST_UNBUSY(); \ 30495fab37eSRobert Watson } while (0) 30595fab37eSRobert Watson 30695fab37eSRobert Watson /* 30795fab37eSRobert Watson * Initialize the MAC subsystem, including appropriate SMP locks. 30895fab37eSRobert Watson */ 30995fab37eSRobert Watson static void 31095fab37eSRobert Watson mac_init(void) 31195fab37eSRobert Watson { 31295fab37eSRobert Watson 31395fab37eSRobert Watson LIST_INIT(&mac_policy_list); 31495fab37eSRobert Watson MAC_POLICY_LIST_LOCKINIT(); 31595fab37eSRobert Watson } 31695fab37eSRobert Watson 31795fab37eSRobert Watson /* 31895fab37eSRobert Watson * For the purposes of modules that want to know if they were loaded 31995fab37eSRobert Watson * "early", set the mac_late flag once we've processed modules either 32095fab37eSRobert Watson * linked into the kernel, or loaded before the kernel startup. 32195fab37eSRobert Watson */ 32295fab37eSRobert Watson static void 32395fab37eSRobert Watson mac_late_init(void) 32495fab37eSRobert Watson { 32595fab37eSRobert Watson 32695fab37eSRobert Watson mac_late = 1; 32795fab37eSRobert Watson } 32895fab37eSRobert Watson 32995fab37eSRobert Watson /* 33095fab37eSRobert Watson * Allow MAC policy modules to register during boot, etc. 33195fab37eSRobert Watson */ 33295fab37eSRobert Watson int 33395fab37eSRobert Watson mac_policy_modevent(module_t mod, int type, void *data) 33495fab37eSRobert Watson { 33595fab37eSRobert Watson struct mac_policy_conf *mpc; 33695fab37eSRobert Watson int error; 33795fab37eSRobert Watson 33895fab37eSRobert Watson error = 0; 33995fab37eSRobert Watson mpc = (struct mac_policy_conf *) data; 34095fab37eSRobert Watson 34195fab37eSRobert Watson switch (type) { 34295fab37eSRobert Watson case MOD_LOAD: 34395fab37eSRobert Watson if (mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_NOTLATE && 34495fab37eSRobert Watson mac_late) { 34595fab37eSRobert Watson printf("mac_policy_modevent: can't load %s policy " 34695fab37eSRobert Watson "after booting\n", mpc->mpc_name); 34795fab37eSRobert Watson error = EBUSY; 34895fab37eSRobert Watson break; 34995fab37eSRobert Watson } 35095fab37eSRobert Watson error = mac_policy_register(mpc); 35195fab37eSRobert Watson break; 35295fab37eSRobert Watson case MOD_UNLOAD: 35395fab37eSRobert Watson /* Don't unregister the module if it was never registered. */ 35495fab37eSRobert Watson if ((mpc->mpc_runtime_flags & MPC_RUNTIME_FLAG_REGISTERED) 35595fab37eSRobert Watson != 0) 35695fab37eSRobert Watson error = mac_policy_unregister(mpc); 35795fab37eSRobert Watson else 35895fab37eSRobert Watson error = 0; 35995fab37eSRobert Watson break; 36095fab37eSRobert Watson default: 36195fab37eSRobert Watson break; 36295fab37eSRobert Watson } 36395fab37eSRobert Watson 36495fab37eSRobert Watson return (error); 36595fab37eSRobert Watson } 36695fab37eSRobert Watson 36795fab37eSRobert Watson static int 36895fab37eSRobert Watson mac_policy_register(struct mac_policy_conf *mpc) 36995fab37eSRobert Watson { 37095fab37eSRobert Watson struct mac_policy_conf *tmpc; 37195fab37eSRobert Watson struct mac_policy_op_entry *mpe; 37295fab37eSRobert Watson int slot; 37395fab37eSRobert Watson 374cc51a2b5SRobert Watson MALLOC(mpc->mpc_ops, struct mac_policy_ops *, sizeof(*mpc->mpc_ops), 375cc51a2b5SRobert Watson M_MACOPVEC, M_WAITOK | M_ZERO); 37695fab37eSRobert Watson for (mpe = mpc->mpc_entries; mpe->mpe_constant != MAC_OP_LAST; mpe++) { 37795fab37eSRobert Watson switch (mpe->mpe_constant) { 37895fab37eSRobert Watson case MAC_OP_LAST: 37995fab37eSRobert Watson /* 38095fab37eSRobert Watson * Doesn't actually happen, but this allows checking 38195fab37eSRobert Watson * that all enumerated values are handled. 38295fab37eSRobert Watson */ 38395fab37eSRobert Watson break; 38495fab37eSRobert Watson case MAC_DESTROY: 38595fab37eSRobert Watson mpc->mpc_ops->mpo_destroy = 38695fab37eSRobert Watson mpe->mpe_function; 38795fab37eSRobert Watson break; 38895fab37eSRobert Watson case MAC_INIT: 38995fab37eSRobert Watson mpc->mpc_ops->mpo_init = 39095fab37eSRobert Watson mpe->mpe_function; 39195fab37eSRobert Watson break; 39227f2eac7SRobert Watson case MAC_SYSCALL: 39327f2eac7SRobert Watson mpc->mpc_ops->mpo_syscall = 39427f2eac7SRobert Watson mpe->mpe_function; 39527f2eac7SRobert Watson break; 39695fab37eSRobert Watson case MAC_INIT_BPFDESC: 39795fab37eSRobert Watson mpc->mpc_ops->mpo_init_bpfdesc = 39895fab37eSRobert Watson mpe->mpe_function; 39995fab37eSRobert Watson break; 40095fab37eSRobert Watson case MAC_INIT_CRED: 40195fab37eSRobert Watson mpc->mpc_ops->mpo_init_cred = 40295fab37eSRobert Watson mpe->mpe_function; 40395fab37eSRobert Watson break; 40495fab37eSRobert Watson case MAC_INIT_DEVFSDIRENT: 40595fab37eSRobert Watson mpc->mpc_ops->mpo_init_devfsdirent = 40695fab37eSRobert Watson mpe->mpe_function; 40795fab37eSRobert Watson break; 40895fab37eSRobert Watson case MAC_INIT_IFNET: 40995fab37eSRobert Watson mpc->mpc_ops->mpo_init_ifnet = 41095fab37eSRobert Watson mpe->mpe_function; 41195fab37eSRobert Watson break; 41295fab37eSRobert Watson case MAC_INIT_IPQ: 41395fab37eSRobert Watson mpc->mpc_ops->mpo_init_ipq = 41495fab37eSRobert Watson mpe->mpe_function; 41595fab37eSRobert Watson break; 41695fab37eSRobert Watson case MAC_INIT_MBUF: 41795fab37eSRobert Watson mpc->mpc_ops->mpo_init_mbuf = 41895fab37eSRobert Watson mpe->mpe_function; 41995fab37eSRobert Watson break; 42095fab37eSRobert Watson case MAC_INIT_MOUNT: 42195fab37eSRobert Watson mpc->mpc_ops->mpo_init_mount = 42295fab37eSRobert Watson mpe->mpe_function; 42395fab37eSRobert Watson break; 42495fab37eSRobert Watson case MAC_INIT_PIPE: 42595fab37eSRobert Watson mpc->mpc_ops->mpo_init_pipe = 42695fab37eSRobert Watson mpe->mpe_function; 42795fab37eSRobert Watson break; 42895fab37eSRobert Watson case MAC_INIT_SOCKET: 42995fab37eSRobert Watson mpc->mpc_ops->mpo_init_socket = 43095fab37eSRobert Watson mpe->mpe_function; 43195fab37eSRobert Watson break; 43295fab37eSRobert Watson case MAC_INIT_TEMP: 43395fab37eSRobert Watson mpc->mpc_ops->mpo_init_temp = 43495fab37eSRobert Watson mpe->mpe_function; 43595fab37eSRobert Watson break; 43695fab37eSRobert Watson case MAC_INIT_VNODE: 43795fab37eSRobert Watson mpc->mpc_ops->mpo_init_vnode = 43895fab37eSRobert Watson mpe->mpe_function; 43995fab37eSRobert Watson break; 44095fab37eSRobert Watson case MAC_DESTROY_BPFDESC: 44195fab37eSRobert Watson mpc->mpc_ops->mpo_destroy_bpfdesc = 44295fab37eSRobert Watson mpe->mpe_function; 44395fab37eSRobert Watson break; 44495fab37eSRobert Watson case MAC_DESTROY_CRED: 44595fab37eSRobert Watson mpc->mpc_ops->mpo_destroy_cred = 44695fab37eSRobert Watson mpe->mpe_function; 44795fab37eSRobert Watson break; 44895fab37eSRobert Watson case MAC_DESTROY_DEVFSDIRENT: 44995fab37eSRobert Watson mpc->mpc_ops->mpo_destroy_devfsdirent = 45095fab37eSRobert Watson mpe->mpe_function; 45195fab37eSRobert Watson break; 45295fab37eSRobert Watson case MAC_DESTROY_IFNET: 45395fab37eSRobert Watson mpc->mpc_ops->mpo_destroy_ifnet = 45495fab37eSRobert Watson mpe->mpe_function; 45595fab37eSRobert Watson break; 45695fab37eSRobert Watson case MAC_DESTROY_IPQ: 45795fab37eSRobert Watson mpc->mpc_ops->mpo_destroy_ipq = 45895fab37eSRobert Watson mpe->mpe_function; 45995fab37eSRobert Watson break; 46095fab37eSRobert Watson case MAC_DESTROY_MBUF: 46195fab37eSRobert Watson mpc->mpc_ops->mpo_destroy_mbuf = 46295fab37eSRobert Watson mpe->mpe_function; 46395fab37eSRobert Watson break; 46495fab37eSRobert Watson case MAC_DESTROY_MOUNT: 46595fab37eSRobert Watson mpc->mpc_ops->mpo_destroy_mount = 46695fab37eSRobert Watson mpe->mpe_function; 46795fab37eSRobert Watson break; 46895fab37eSRobert Watson case MAC_DESTROY_PIPE: 46995fab37eSRobert Watson mpc->mpc_ops->mpo_destroy_pipe = 47095fab37eSRobert Watson mpe->mpe_function; 47195fab37eSRobert Watson break; 47295fab37eSRobert Watson case MAC_DESTROY_SOCKET: 47395fab37eSRobert Watson mpc->mpc_ops->mpo_destroy_socket = 47495fab37eSRobert Watson mpe->mpe_function; 47595fab37eSRobert Watson break; 47695fab37eSRobert Watson case MAC_DESTROY_TEMP: 47795fab37eSRobert Watson mpc->mpc_ops->mpo_destroy_temp = 47895fab37eSRobert Watson mpe->mpe_function; 47995fab37eSRobert Watson break; 48095fab37eSRobert Watson case MAC_DESTROY_VNODE: 48195fab37eSRobert Watson mpc->mpc_ops->mpo_destroy_vnode = 48295fab37eSRobert Watson mpe->mpe_function; 48395fab37eSRobert Watson break; 48495fab37eSRobert Watson case MAC_EXTERNALIZE: 48595fab37eSRobert Watson mpc->mpc_ops->mpo_externalize = 48695fab37eSRobert Watson mpe->mpe_function; 48795fab37eSRobert Watson break; 48895fab37eSRobert Watson case MAC_INTERNALIZE: 48995fab37eSRobert Watson mpc->mpc_ops->mpo_internalize = 49095fab37eSRobert Watson mpe->mpe_function; 49195fab37eSRobert Watson break; 49295fab37eSRobert Watson case MAC_CREATE_DEVFS_DEVICE: 49395fab37eSRobert Watson mpc->mpc_ops->mpo_create_devfs_device = 49495fab37eSRobert Watson mpe->mpe_function; 49595fab37eSRobert Watson break; 49695fab37eSRobert Watson case MAC_CREATE_DEVFS_DIRECTORY: 49795fab37eSRobert Watson mpc->mpc_ops->mpo_create_devfs_directory = 49895fab37eSRobert Watson mpe->mpe_function; 49995fab37eSRobert Watson break; 50095fab37eSRobert Watson case MAC_CREATE_DEVFS_VNODE: 50195fab37eSRobert Watson mpc->mpc_ops->mpo_create_devfs_vnode = 50295fab37eSRobert Watson mpe->mpe_function; 50395fab37eSRobert Watson break; 50495fab37eSRobert Watson case MAC_STDCREATEVNODE_EA: 50595fab37eSRobert Watson mpc->mpc_ops->mpo_stdcreatevnode_ea = 50695fab37eSRobert Watson mpe->mpe_function; 50795fab37eSRobert Watson break; 50895fab37eSRobert Watson case MAC_CREATE_VNODE: 50995fab37eSRobert Watson mpc->mpc_ops->mpo_create_vnode = 51095fab37eSRobert Watson mpe->mpe_function; 51195fab37eSRobert Watson break; 51295fab37eSRobert Watson case MAC_CREATE_MOUNT: 51395fab37eSRobert Watson mpc->mpc_ops->mpo_create_mount = 51495fab37eSRobert Watson mpe->mpe_function; 51595fab37eSRobert Watson break; 51695fab37eSRobert Watson case MAC_CREATE_ROOT_MOUNT: 51795fab37eSRobert Watson mpc->mpc_ops->mpo_create_root_mount = 51895fab37eSRobert Watson mpe->mpe_function; 51995fab37eSRobert Watson break; 52095fab37eSRobert Watson case MAC_RELABEL_VNODE: 52195fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_vnode = 52295fab37eSRobert Watson mpe->mpe_function; 52395fab37eSRobert Watson break; 52495fab37eSRobert Watson case MAC_UPDATE_DEVFSDIRENT: 52595fab37eSRobert Watson mpc->mpc_ops->mpo_update_devfsdirent = 52695fab37eSRobert Watson mpe->mpe_function; 52795fab37eSRobert Watson break; 52895fab37eSRobert Watson case MAC_UPDATE_PROCFSVNODE: 52995fab37eSRobert Watson mpc->mpc_ops->mpo_update_procfsvnode = 53095fab37eSRobert Watson mpe->mpe_function; 53195fab37eSRobert Watson break; 53295fab37eSRobert Watson case MAC_UPDATE_VNODE_FROM_EXTATTR: 53395fab37eSRobert Watson mpc->mpc_ops->mpo_update_vnode_from_extattr = 53495fab37eSRobert Watson mpe->mpe_function; 53595fab37eSRobert Watson break; 53695fab37eSRobert Watson case MAC_UPDATE_VNODE_FROM_EXTERNALIZED: 53795fab37eSRobert Watson mpc->mpc_ops->mpo_update_vnode_from_externalized = 53895fab37eSRobert Watson mpe->mpe_function; 53995fab37eSRobert Watson break; 54095fab37eSRobert Watson case MAC_UPDATE_VNODE_FROM_MOUNT: 54195fab37eSRobert Watson mpc->mpc_ops->mpo_update_vnode_from_mount = 54295fab37eSRobert Watson mpe->mpe_function; 54395fab37eSRobert Watson break; 54495fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_SOCKET: 54595fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_socket = 54695fab37eSRobert Watson mpe->mpe_function; 54795fab37eSRobert Watson break; 54895fab37eSRobert Watson case MAC_CREATE_PIPE: 54995fab37eSRobert Watson mpc->mpc_ops->mpo_create_pipe = 55095fab37eSRobert Watson mpe->mpe_function; 55195fab37eSRobert Watson break; 55295fab37eSRobert Watson case MAC_CREATE_SOCKET: 55395fab37eSRobert Watson mpc->mpc_ops->mpo_create_socket = 55495fab37eSRobert Watson mpe->mpe_function; 55595fab37eSRobert Watson break; 55695fab37eSRobert Watson case MAC_CREATE_SOCKET_FROM_SOCKET: 55795fab37eSRobert Watson mpc->mpc_ops->mpo_create_socket_from_socket = 55895fab37eSRobert Watson mpe->mpe_function; 55995fab37eSRobert Watson break; 56095fab37eSRobert Watson case MAC_RELABEL_PIPE: 56195fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_pipe = 56295fab37eSRobert Watson mpe->mpe_function; 56395fab37eSRobert Watson break; 56495fab37eSRobert Watson case MAC_RELABEL_SOCKET: 56595fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_socket = 56695fab37eSRobert Watson mpe->mpe_function; 56795fab37eSRobert Watson break; 56895fab37eSRobert Watson case MAC_SET_SOCKET_PEER_FROM_MBUF: 56995fab37eSRobert Watson mpc->mpc_ops->mpo_set_socket_peer_from_mbuf = 57095fab37eSRobert Watson mpe->mpe_function; 57195fab37eSRobert Watson break; 57295fab37eSRobert Watson case MAC_SET_SOCKET_PEER_FROM_SOCKET: 57395fab37eSRobert Watson mpc->mpc_ops->mpo_set_socket_peer_from_socket = 57495fab37eSRobert Watson mpe->mpe_function; 57595fab37eSRobert Watson break; 57695fab37eSRobert Watson case MAC_CREATE_BPFDESC: 57795fab37eSRobert Watson mpc->mpc_ops->mpo_create_bpfdesc = 57895fab37eSRobert Watson mpe->mpe_function; 57995fab37eSRobert Watson break; 58095fab37eSRobert Watson case MAC_CREATE_DATAGRAM_FROM_IPQ: 58195fab37eSRobert Watson mpc->mpc_ops->mpo_create_datagram_from_ipq = 58295fab37eSRobert Watson mpe->mpe_function; 58395fab37eSRobert Watson break; 58495fab37eSRobert Watson case MAC_CREATE_FRAGMENT: 58595fab37eSRobert Watson mpc->mpc_ops->mpo_create_fragment = 58695fab37eSRobert Watson mpe->mpe_function; 58795fab37eSRobert Watson break; 58895fab37eSRobert Watson case MAC_CREATE_IFNET: 58995fab37eSRobert Watson mpc->mpc_ops->mpo_create_ifnet = 59095fab37eSRobert Watson mpe->mpe_function; 59195fab37eSRobert Watson break; 59295fab37eSRobert Watson case MAC_CREATE_IPQ: 59395fab37eSRobert Watson mpc->mpc_ops->mpo_create_ipq = 59495fab37eSRobert Watson mpe->mpe_function; 59595fab37eSRobert Watson break; 59695fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_MBUF: 59795fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_mbuf = 59895fab37eSRobert Watson mpe->mpe_function; 59995fab37eSRobert Watson break; 60095fab37eSRobert Watson case MAC_CREATE_MBUF_LINKLAYER: 60195fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_linklayer = 60295fab37eSRobert Watson mpe->mpe_function; 60395fab37eSRobert Watson break; 60495fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_BPFDESC: 60595fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_bpfdesc = 60695fab37eSRobert Watson mpe->mpe_function; 60795fab37eSRobert Watson break; 60895fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_IFNET: 60995fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_ifnet = 61095fab37eSRobert Watson mpe->mpe_function; 61195fab37eSRobert Watson break; 61295fab37eSRobert Watson case MAC_CREATE_MBUF_MULTICAST_ENCAP: 61395fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_multicast_encap = 61495fab37eSRobert Watson mpe->mpe_function; 61595fab37eSRobert Watson break; 61695fab37eSRobert Watson case MAC_CREATE_MBUF_NETLAYER: 61795fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_netlayer = 61895fab37eSRobert Watson mpe->mpe_function; 61995fab37eSRobert Watson break; 62095fab37eSRobert Watson case MAC_FRAGMENT_MATCH: 62195fab37eSRobert Watson mpc->mpc_ops->mpo_fragment_match = 62295fab37eSRobert Watson mpe->mpe_function; 62395fab37eSRobert Watson break; 62495fab37eSRobert Watson case MAC_RELABEL_IFNET: 62595fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_ifnet = 62695fab37eSRobert Watson mpe->mpe_function; 62795fab37eSRobert Watson break; 62895fab37eSRobert Watson case MAC_UPDATE_IPQ: 62995fab37eSRobert Watson mpc->mpc_ops->mpo_update_ipq = 63095fab37eSRobert Watson mpe->mpe_function; 63195fab37eSRobert Watson break; 63295fab37eSRobert Watson case MAC_CREATE_CRED: 63395fab37eSRobert Watson mpc->mpc_ops->mpo_create_cred = 63495fab37eSRobert Watson mpe->mpe_function; 63595fab37eSRobert Watson break; 63695fab37eSRobert Watson case MAC_EXECVE_TRANSITION: 63795fab37eSRobert Watson mpc->mpc_ops->mpo_execve_transition = 63895fab37eSRobert Watson mpe->mpe_function; 63995fab37eSRobert Watson break; 64095fab37eSRobert Watson case MAC_EXECVE_WILL_TRANSITION: 64195fab37eSRobert Watson mpc->mpc_ops->mpo_execve_will_transition = 64295fab37eSRobert Watson mpe->mpe_function; 64395fab37eSRobert Watson break; 64495fab37eSRobert Watson case MAC_CREATE_PROC0: 64595fab37eSRobert Watson mpc->mpc_ops->mpo_create_proc0 = mpe->mpe_function; 64695fab37eSRobert Watson break; 64795fab37eSRobert Watson case MAC_CREATE_PROC1: 64895fab37eSRobert Watson mpc->mpc_ops->mpo_create_proc1 = mpe->mpe_function; 64995fab37eSRobert Watson break; 65095fab37eSRobert Watson case MAC_RELABEL_CRED: 65195fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_cred = 65295fab37eSRobert Watson mpe->mpe_function; 65395fab37eSRobert Watson break; 65495fab37eSRobert Watson case MAC_CHECK_BPFDESC_RECEIVE: 65595fab37eSRobert Watson mpc->mpc_ops->mpo_check_bpfdesc_receive = 65695fab37eSRobert Watson mpe->mpe_function; 65795fab37eSRobert Watson break; 65895fab37eSRobert Watson case MAC_CHECK_CRED_RELABEL: 65995fab37eSRobert Watson mpc->mpc_ops->mpo_check_cred_relabel = 66095fab37eSRobert Watson mpe->mpe_function; 66195fab37eSRobert Watson break; 66295fab37eSRobert Watson case MAC_CHECK_CRED_VISIBLE: 66395fab37eSRobert Watson mpc->mpc_ops->mpo_check_cred_visible = 66495fab37eSRobert Watson mpe->mpe_function; 66595fab37eSRobert Watson break; 66695fab37eSRobert Watson case MAC_CHECK_IFNET_RELABEL: 66795fab37eSRobert Watson mpc->mpc_ops->mpo_check_ifnet_relabel = 66895fab37eSRobert Watson mpe->mpe_function; 66995fab37eSRobert Watson break; 67095fab37eSRobert Watson case MAC_CHECK_IFNET_TRANSMIT: 67195fab37eSRobert Watson mpc->mpc_ops->mpo_check_ifnet_transmit = 67295fab37eSRobert Watson mpe->mpe_function; 67395fab37eSRobert Watson break; 67495fab37eSRobert Watson case MAC_CHECK_MOUNT_STAT: 67595fab37eSRobert Watson mpc->mpc_ops->mpo_check_mount_stat = 67695fab37eSRobert Watson mpe->mpe_function; 67795fab37eSRobert Watson break; 67895fab37eSRobert Watson case MAC_CHECK_PIPE_IOCTL: 67995fab37eSRobert Watson mpc->mpc_ops->mpo_check_pipe_ioctl = 68095fab37eSRobert Watson mpe->mpe_function; 68195fab37eSRobert Watson break; 682c024c3eeSRobert Watson case MAC_CHECK_PIPE_POLL: 683c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_poll = 684c024c3eeSRobert Watson mpe->mpe_function; 685c024c3eeSRobert Watson break; 686c024c3eeSRobert Watson case MAC_CHECK_PIPE_READ: 687c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_read = 68895fab37eSRobert Watson mpe->mpe_function; 68995fab37eSRobert Watson break; 69095fab37eSRobert Watson case MAC_CHECK_PIPE_RELABEL: 69195fab37eSRobert Watson mpc->mpc_ops->mpo_check_pipe_relabel = 69295fab37eSRobert Watson mpe->mpe_function; 69395fab37eSRobert Watson break; 694c024c3eeSRobert Watson case MAC_CHECK_PIPE_STAT: 695c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_stat = 696c024c3eeSRobert Watson mpe->mpe_function; 697c024c3eeSRobert Watson break; 698c024c3eeSRobert Watson case MAC_CHECK_PIPE_WRITE: 699c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_write = 700c024c3eeSRobert Watson mpe->mpe_function; 701c024c3eeSRobert Watson break; 70295fab37eSRobert Watson case MAC_CHECK_PROC_DEBUG: 70395fab37eSRobert Watson mpc->mpc_ops->mpo_check_proc_debug = 70495fab37eSRobert Watson mpe->mpe_function; 70595fab37eSRobert Watson break; 70695fab37eSRobert Watson case MAC_CHECK_PROC_SCHED: 70795fab37eSRobert Watson mpc->mpc_ops->mpo_check_proc_sched = 70895fab37eSRobert Watson mpe->mpe_function; 70995fab37eSRobert Watson break; 71095fab37eSRobert Watson case MAC_CHECK_PROC_SIGNAL: 71195fab37eSRobert Watson mpc->mpc_ops->mpo_check_proc_signal = 71295fab37eSRobert Watson mpe->mpe_function; 71395fab37eSRobert Watson break; 71495fab37eSRobert Watson case MAC_CHECK_SOCKET_BIND: 71595fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_bind = 71695fab37eSRobert Watson mpe->mpe_function; 71795fab37eSRobert Watson break; 71895fab37eSRobert Watson case MAC_CHECK_SOCKET_CONNECT: 71995fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_connect = 72095fab37eSRobert Watson mpe->mpe_function; 72195fab37eSRobert Watson break; 722d61198e4SRobert Watson case MAC_CHECK_SOCKET_DELIVER: 723d61198e4SRobert Watson mpc->mpc_ops->mpo_check_socket_deliver = 72495fab37eSRobert Watson mpe->mpe_function; 72595fab37eSRobert Watson break; 726d61198e4SRobert Watson case MAC_CHECK_SOCKET_LISTEN: 727d61198e4SRobert Watson mpc->mpc_ops->mpo_check_socket_listen = 72895fab37eSRobert Watson mpe->mpe_function; 72995fab37eSRobert Watson break; 73095fab37eSRobert Watson case MAC_CHECK_SOCKET_RELABEL: 73195fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_relabel = 73295fab37eSRobert Watson mpe->mpe_function; 73395fab37eSRobert Watson break; 73495fab37eSRobert Watson case MAC_CHECK_SOCKET_VISIBLE: 73595fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_visible = 73695fab37eSRobert Watson mpe->mpe_function; 73795fab37eSRobert Watson break; 73895fab37eSRobert Watson case MAC_CHECK_VNODE_ACCESS: 73995fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_access = 74095fab37eSRobert Watson mpe->mpe_function; 74195fab37eSRobert Watson break; 74295fab37eSRobert Watson case MAC_CHECK_VNODE_CHDIR: 74395fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_chdir = 74495fab37eSRobert Watson mpe->mpe_function; 74595fab37eSRobert Watson break; 74695fab37eSRobert Watson case MAC_CHECK_VNODE_CHROOT: 74795fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_chroot = 74895fab37eSRobert Watson mpe->mpe_function; 74995fab37eSRobert Watson break; 75095fab37eSRobert Watson case MAC_CHECK_VNODE_CREATE: 75195fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_create = 75295fab37eSRobert Watson mpe->mpe_function; 75395fab37eSRobert Watson break; 75495fab37eSRobert Watson case MAC_CHECK_VNODE_DELETE: 75595fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_delete = 75695fab37eSRobert Watson mpe->mpe_function; 75795fab37eSRobert Watson break; 75895fab37eSRobert Watson case MAC_CHECK_VNODE_DELETEACL: 75995fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_deleteacl = 76095fab37eSRobert Watson mpe->mpe_function; 76195fab37eSRobert Watson break; 76295fab37eSRobert Watson case MAC_CHECK_VNODE_EXEC: 76395fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_exec = 76495fab37eSRobert Watson mpe->mpe_function; 76595fab37eSRobert Watson break; 76695fab37eSRobert Watson case MAC_CHECK_VNODE_GETACL: 76795fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_getacl = 76895fab37eSRobert Watson mpe->mpe_function; 76995fab37eSRobert Watson break; 77095fab37eSRobert Watson case MAC_CHECK_VNODE_GETEXTATTR: 77195fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_getextattr = 77295fab37eSRobert Watson mpe->mpe_function; 77395fab37eSRobert Watson break; 77495fab37eSRobert Watson case MAC_CHECK_VNODE_LOOKUP: 77595fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_lookup = 77695fab37eSRobert Watson mpe->mpe_function; 77795fab37eSRobert Watson break; 77895fab37eSRobert Watson case MAC_CHECK_VNODE_MMAP_PERMS: 77995fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_mmap_perms = 78095fab37eSRobert Watson mpe->mpe_function; 78195fab37eSRobert Watson break; 78295fab37eSRobert Watson case MAC_CHECK_VNODE_OPEN: 78395fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_open = 78495fab37eSRobert Watson mpe->mpe_function; 78595fab37eSRobert Watson break; 7867f724f8bSRobert Watson case MAC_CHECK_VNODE_POLL: 7877f724f8bSRobert Watson mpc->mpc_ops->mpo_check_vnode_poll = 7887f724f8bSRobert Watson mpe->mpe_function; 7897f724f8bSRobert Watson break; 7907f724f8bSRobert Watson case MAC_CHECK_VNODE_READ: 7917f724f8bSRobert Watson mpc->mpc_ops->mpo_check_vnode_read = 7927f724f8bSRobert Watson mpe->mpe_function; 7937f724f8bSRobert Watson break; 79495fab37eSRobert Watson case MAC_CHECK_VNODE_READDIR: 79595fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_readdir = 79695fab37eSRobert Watson mpe->mpe_function; 79795fab37eSRobert Watson break; 79895fab37eSRobert Watson case MAC_CHECK_VNODE_READLINK: 79995fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_readlink = 80095fab37eSRobert Watson mpe->mpe_function; 80195fab37eSRobert Watson break; 80295fab37eSRobert Watson case MAC_CHECK_VNODE_RELABEL: 80395fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_relabel = 80495fab37eSRobert Watson mpe->mpe_function; 80595fab37eSRobert Watson break; 80695fab37eSRobert Watson case MAC_CHECK_VNODE_RENAME_FROM: 80795fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_rename_from = 80895fab37eSRobert Watson mpe->mpe_function; 80995fab37eSRobert Watson break; 81095fab37eSRobert Watson case MAC_CHECK_VNODE_RENAME_TO: 81195fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_rename_to = 81295fab37eSRobert Watson mpe->mpe_function; 81395fab37eSRobert Watson break; 81495fab37eSRobert Watson case MAC_CHECK_VNODE_REVOKE: 81595fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_revoke = 81695fab37eSRobert Watson mpe->mpe_function; 81795fab37eSRobert Watson break; 81895fab37eSRobert Watson case MAC_CHECK_VNODE_SETACL: 81995fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setacl = 82095fab37eSRobert Watson mpe->mpe_function; 82195fab37eSRobert Watson break; 82295fab37eSRobert Watson case MAC_CHECK_VNODE_SETEXTATTR: 82395fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setextattr = 82495fab37eSRobert Watson mpe->mpe_function; 82595fab37eSRobert Watson break; 82695fab37eSRobert Watson case MAC_CHECK_VNODE_SETFLAGS: 82795fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setflags = 82895fab37eSRobert Watson mpe->mpe_function; 82995fab37eSRobert Watson break; 83095fab37eSRobert Watson case MAC_CHECK_VNODE_SETMODE: 83195fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setmode = 83295fab37eSRobert Watson mpe->mpe_function; 83395fab37eSRobert Watson break; 83495fab37eSRobert Watson case MAC_CHECK_VNODE_SETOWNER: 83595fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setowner = 83695fab37eSRobert Watson mpe->mpe_function; 83795fab37eSRobert Watson break; 83895fab37eSRobert Watson case MAC_CHECK_VNODE_SETUTIMES: 83995fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setutimes = 84095fab37eSRobert Watson mpe->mpe_function; 84195fab37eSRobert Watson break; 84295fab37eSRobert Watson case MAC_CHECK_VNODE_STAT: 84395fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_stat = 84495fab37eSRobert Watson mpe->mpe_function; 84595fab37eSRobert Watson break; 8467f724f8bSRobert Watson case MAC_CHECK_VNODE_WRITE: 8477f724f8bSRobert Watson mpc->mpc_ops->mpo_check_vnode_write = 8487f724f8bSRobert Watson mpe->mpe_function; 8497f724f8bSRobert Watson break; 85095fab37eSRobert Watson /* 85195fab37eSRobert Watson default: 85295fab37eSRobert Watson printf("MAC policy `%s': unknown operation %d\n", 85395fab37eSRobert Watson mpc->mpc_name, mpe->mpe_constant); 85495fab37eSRobert Watson return (EINVAL); 85595fab37eSRobert Watson */ 85695fab37eSRobert Watson } 85795fab37eSRobert Watson } 85895fab37eSRobert Watson MAC_POLICY_LIST_LOCK(); 85995fab37eSRobert Watson if (mac_policy_list_busy > 0) { 86095fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 86195fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 86295fab37eSRobert Watson mpc->mpc_ops = NULL; 86395fab37eSRobert Watson return (EBUSY); 86495fab37eSRobert Watson } 86595fab37eSRobert Watson LIST_FOREACH(tmpc, &mac_policy_list, mpc_list) { 86695fab37eSRobert Watson if (strcmp(tmpc->mpc_name, mpc->mpc_name) == 0) { 86795fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 86895fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 86995fab37eSRobert Watson mpc->mpc_ops = NULL; 87095fab37eSRobert Watson return (EEXIST); 87195fab37eSRobert Watson } 87295fab37eSRobert Watson } 87395fab37eSRobert Watson if (mpc->mpc_field_off != NULL) { 87495fab37eSRobert Watson slot = ffs(mac_policy_offsets_free); 87595fab37eSRobert Watson if (slot == 0) { 87695fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 87795fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 87895fab37eSRobert Watson mpc->mpc_ops = NULL; 87995fab37eSRobert Watson return (ENOMEM); 88095fab37eSRobert Watson } 88195fab37eSRobert Watson slot--; 88295fab37eSRobert Watson mac_policy_offsets_free &= ~(1 << slot); 88395fab37eSRobert Watson *mpc->mpc_field_off = slot; 88495fab37eSRobert Watson } 88595fab37eSRobert Watson mpc->mpc_runtime_flags |= MPC_RUNTIME_FLAG_REGISTERED; 88695fab37eSRobert Watson LIST_INSERT_HEAD(&mac_policy_list, mpc, mpc_list); 88795fab37eSRobert Watson 88895fab37eSRobert Watson /* Per-policy initialization. */ 88995fab37eSRobert Watson if (mpc->mpc_ops->mpo_init != NULL) 89095fab37eSRobert Watson (*(mpc->mpc_ops->mpo_init))(mpc); 89195fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 89295fab37eSRobert Watson 89395fab37eSRobert Watson printf("Security policy loaded: %s (%s)\n", mpc->mpc_fullname, 89495fab37eSRobert Watson mpc->mpc_name); 89595fab37eSRobert Watson 89695fab37eSRobert Watson return (0); 89795fab37eSRobert Watson } 89895fab37eSRobert Watson 89995fab37eSRobert Watson static int 90095fab37eSRobert Watson mac_policy_unregister(struct mac_policy_conf *mpc) 90195fab37eSRobert Watson { 90295fab37eSRobert Watson 90395fab37eSRobert Watson #if 0 90495fab37eSRobert Watson /* 90595fab37eSRobert Watson * Don't allow unloading modules with private data. 90695fab37eSRobert Watson */ 90795fab37eSRobert Watson if (mpc->mpc_field_off != NULL) 90895fab37eSRobert Watson return (EBUSY); 90995fab37eSRobert Watson #endif 91095fab37eSRobert Watson if ((mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_UNLOADOK) == 0) 91195fab37eSRobert Watson return (EBUSY); 91295fab37eSRobert Watson MAC_POLICY_LIST_LOCK(); 91395fab37eSRobert Watson if (mac_policy_list_busy > 0) { 91495fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 91595fab37eSRobert Watson return (EBUSY); 91695fab37eSRobert Watson } 91795fab37eSRobert Watson if (mpc->mpc_ops->mpo_destroy != NULL) 91895fab37eSRobert Watson (*(mpc->mpc_ops->mpo_destroy))(mpc); 91995fab37eSRobert Watson 92095fab37eSRobert Watson LIST_REMOVE(mpc, mpc_list); 92195fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 92295fab37eSRobert Watson 92395fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 92495fab37eSRobert Watson mpc->mpc_ops = NULL; 92595fab37eSRobert Watson 92695fab37eSRobert Watson printf("Security policy unload: %s (%s)\n", mpc->mpc_fullname, 92795fab37eSRobert Watson mpc->mpc_name); 92895fab37eSRobert Watson 92995fab37eSRobert Watson return (0); 93095fab37eSRobert Watson } 93195fab37eSRobert Watson 93295fab37eSRobert Watson /* 93395fab37eSRobert Watson * Define an error value precedence, and given two arguments, selects the 93495fab37eSRobert Watson * value with the higher precedence. 93595fab37eSRobert Watson */ 93695fab37eSRobert Watson static int 93795fab37eSRobert Watson error_select(int error1, int error2) 93895fab37eSRobert Watson { 93995fab37eSRobert Watson 94095fab37eSRobert Watson /* Certain decision-making errors take top priority. */ 94195fab37eSRobert Watson if (error1 == EDEADLK || error2 == EDEADLK) 94295fab37eSRobert Watson return (EDEADLK); 94395fab37eSRobert Watson 94495fab37eSRobert Watson /* Invalid arguments should be reported where possible. */ 94595fab37eSRobert Watson if (error1 == EINVAL || error2 == EINVAL) 94695fab37eSRobert Watson return (EINVAL); 94795fab37eSRobert Watson 94895fab37eSRobert Watson /* Precedence goes to "visibility", with both process and file. */ 94995fab37eSRobert Watson if (error1 == ESRCH || error2 == ESRCH) 95095fab37eSRobert Watson return (ESRCH); 95195fab37eSRobert Watson 95295fab37eSRobert Watson if (error1 == ENOENT || error2 == ENOENT) 95395fab37eSRobert Watson return (ENOENT); 95495fab37eSRobert Watson 95595fab37eSRobert Watson /* Precedence goes to DAC/MAC protections. */ 95695fab37eSRobert Watson if (error1 == EACCES || error2 == EACCES) 95795fab37eSRobert Watson return (EACCES); 95895fab37eSRobert Watson 95995fab37eSRobert Watson /* Precedence goes to privilege. */ 96095fab37eSRobert Watson if (error1 == EPERM || error2 == EPERM) 96195fab37eSRobert Watson return (EPERM); 96295fab37eSRobert Watson 96395fab37eSRobert Watson /* Precedence goes to error over success; otherwise, arbitrary. */ 96495fab37eSRobert Watson if (error1 != 0) 96595fab37eSRobert Watson return (error1); 96695fab37eSRobert Watson return (error2); 96795fab37eSRobert Watson } 96895fab37eSRobert Watson 96995fab37eSRobert Watson void 97095fab37eSRobert Watson mac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp) 97195fab37eSRobert Watson { 97295fab37eSRobert Watson 97395fab37eSRobert Watson MAC_PERFORM(update_devfsdirent, de, &de->de_label, vp, &vp->v_label); 97495fab37eSRobert Watson } 97595fab37eSRobert Watson 97695fab37eSRobert Watson void 97795fab37eSRobert Watson mac_update_procfsvnode(struct vnode *vp, struct ucred *cred) 97895fab37eSRobert Watson { 97995fab37eSRobert Watson 98095fab37eSRobert Watson MAC_PERFORM(update_procfsvnode, vp, &vp->v_label, cred); 98195fab37eSRobert Watson } 98295fab37eSRobert Watson 98395fab37eSRobert Watson /* 98495fab37eSRobert Watson * Support callout for policies that manage their own externalization 98595fab37eSRobert Watson * using extended attributes. 98695fab37eSRobert Watson */ 98795fab37eSRobert Watson static int 98895fab37eSRobert Watson mac_update_vnode_from_extattr(struct vnode *vp, struct mount *mp) 98995fab37eSRobert Watson { 99095fab37eSRobert Watson int error; 99195fab37eSRobert Watson 99295fab37eSRobert Watson MAC_CHECK(update_vnode_from_extattr, vp, &vp->v_label, mp, 99395fab37eSRobert Watson &mp->mnt_fslabel); 99495fab37eSRobert Watson 99595fab37eSRobert Watson return (error); 99695fab37eSRobert Watson } 99795fab37eSRobert Watson 99895fab37eSRobert Watson /* 99995fab37eSRobert Watson * Given an externalized mac label, internalize it and stamp it on a 100095fab37eSRobert Watson * vnode. 100195fab37eSRobert Watson */ 100295fab37eSRobert Watson static int 100395fab37eSRobert Watson mac_update_vnode_from_externalized(struct vnode *vp, struct mac *extmac) 100495fab37eSRobert Watson { 100595fab37eSRobert Watson int error; 100695fab37eSRobert Watson 100795fab37eSRobert Watson MAC_CHECK(update_vnode_from_externalized, vp, &vp->v_label, extmac); 100895fab37eSRobert Watson 100995fab37eSRobert Watson return (error); 101095fab37eSRobert Watson } 101195fab37eSRobert Watson 101295fab37eSRobert Watson /* 101395fab37eSRobert Watson * Call out to individual policies to update the label in a vnode from 101495fab37eSRobert Watson * the mountpoint. 101595fab37eSRobert Watson */ 101695fab37eSRobert Watson void 101795fab37eSRobert Watson mac_update_vnode_from_mount(struct vnode *vp, struct mount *mp) 101895fab37eSRobert Watson { 101995fab37eSRobert Watson 102095fab37eSRobert Watson MAC_PERFORM(update_vnode_from_mount, vp, &vp->v_label, mp, 102195fab37eSRobert Watson &mp->mnt_fslabel); 102295fab37eSRobert Watson 1023e6e370a7SJeff Roberson ASSERT_VOP_LOCKED(vp, "mac_update_vnode_from_mount"); 102495fab37eSRobert Watson if (mac_cache_fslabel_in_vnode) 1025e6e370a7SJeff Roberson vp->v_vflag |= VV_CACHEDLABEL; 102695fab37eSRobert Watson } 102795fab37eSRobert Watson 102895fab37eSRobert Watson /* 102995fab37eSRobert Watson * Implementation of VOP_REFRESHLABEL() that relies on extended attributes 103095fab37eSRobert Watson * to store label data. Can be referenced by filesystems supporting 103195fab37eSRobert Watson * extended attributes. 103295fab37eSRobert Watson */ 103395fab37eSRobert Watson int 103495fab37eSRobert Watson vop_stdrefreshlabel_ea(struct vop_refreshlabel_args *ap) 103595fab37eSRobert Watson { 103695fab37eSRobert Watson struct vnode *vp = ap->a_vp; 103795fab37eSRobert Watson struct mac extmac; 103895fab37eSRobert Watson int buflen, error; 103995fab37eSRobert Watson 104095fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "vop_stdrefreshlabel_ea"); 104195fab37eSRobert Watson 104295fab37eSRobert Watson /* 104395fab37eSRobert Watson * Call out to external policies first. Order doesn't really 104495fab37eSRobert Watson * matter, as long as failure of one assures failure of all. 104595fab37eSRobert Watson */ 104695fab37eSRobert Watson error = mac_update_vnode_from_extattr(vp, vp->v_mount); 104795fab37eSRobert Watson if (error) 104895fab37eSRobert Watson return (error); 104995fab37eSRobert Watson 105095fab37eSRobert Watson buflen = sizeof(extmac); 105195fab37eSRobert Watson error = vn_extattr_get(vp, IO_NODELOCKED, 105295fab37eSRobert Watson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, &buflen, 105395fab37eSRobert Watson (char *)&extmac, curthread); 105495fab37eSRobert Watson switch (error) { 105595fab37eSRobert Watson case 0: 105695fab37eSRobert Watson /* Got it */ 105795fab37eSRobert Watson break; 105895fab37eSRobert Watson 105995fab37eSRobert Watson case ENOATTR: 106095fab37eSRobert Watson /* 106195fab37eSRobert Watson * Use the label from the mount point. 106295fab37eSRobert Watson */ 106395fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 106495fab37eSRobert Watson return (0); 106595fab37eSRobert Watson 106695fab37eSRobert Watson case EOPNOTSUPP: 106795fab37eSRobert Watson default: 106895fab37eSRobert Watson /* Fail horribly. */ 106995fab37eSRobert Watson return (error); 107095fab37eSRobert Watson } 107195fab37eSRobert Watson 107295fab37eSRobert Watson if (buflen != sizeof(extmac)) 107395fab37eSRobert Watson error = EPERM; /* Fail very closed. */ 107495fab37eSRobert Watson if (error == 0) 107595fab37eSRobert Watson error = mac_update_vnode_from_externalized(vp, &extmac); 107695fab37eSRobert Watson if (error == 0) 1077e6e370a7SJeff Roberson vp->v_vflag |= VV_CACHEDLABEL; 107895fab37eSRobert Watson else { 107995fab37eSRobert Watson struct vattr va; 108095fab37eSRobert Watson 108195fab37eSRobert Watson printf("Corrupted label on %s", 108295fab37eSRobert Watson vp->v_mount->mnt_stat.f_mntonname); 108395fab37eSRobert Watson if (VOP_GETATTR(vp, &va, curthread->td_ucred, curthread) == 0) 108495fab37eSRobert Watson printf(" inum %ld", va.va_fileid); 108595fab37eSRobert Watson if (mac_debug_label_fallback) { 108695fab37eSRobert Watson printf(", falling back.\n"); 108795fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 108895fab37eSRobert Watson error = 0; 108995fab37eSRobert Watson } else { 109095fab37eSRobert Watson printf(".\n"); 109195fab37eSRobert Watson error = EPERM; 109295fab37eSRobert Watson } 109395fab37eSRobert Watson } 109495fab37eSRobert Watson 109595fab37eSRobert Watson return (error); 109695fab37eSRobert Watson } 109795fab37eSRobert Watson 109895fab37eSRobert Watson /* 109995fab37eSRobert Watson * Make sure the vnode label is up-to-date. If EOPNOTSUPP, then we handle 110095fab37eSRobert Watson * the labeling activity outselves. Filesystems should be careful not 110195fab37eSRobert Watson * to change their minds regarding whether they support vop_refreshlabel() 110295fab37eSRobert Watson * for a vnode or not. Don't cache the vnode here, allow the file 110395fab37eSRobert Watson * system code to determine if it's safe to cache. If we update from 110495fab37eSRobert Watson * the mount, don't cache since a change to the mount label should affect 110595fab37eSRobert Watson * all vnodes. 110695fab37eSRobert Watson */ 110795fab37eSRobert Watson static int 110895fab37eSRobert Watson vn_refreshlabel(struct vnode *vp, struct ucred *cred) 110995fab37eSRobert Watson { 111095fab37eSRobert Watson int error; 111195fab37eSRobert Watson 111295fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "vn_refreshlabel"); 111395fab37eSRobert Watson 111495fab37eSRobert Watson if (vp->v_mount == NULL) { 111595fab37eSRobert Watson /* 111695fab37eSRobert Watson Eventually, we probably want to special-case refreshing 111795fab37eSRobert Watson of deadfs vnodes, and if there's a lock-free race somewhere, 111895fab37eSRobert Watson that case might be handled here. 111995fab37eSRobert Watson 112095fab37eSRobert Watson mac_update_vnode_deadfs(vp); 112195fab37eSRobert Watson return (0); 112295fab37eSRobert Watson */ 112395fab37eSRobert Watson /* printf("vn_refreshlabel: null v_mount\n"); */ 112406be2aaaSNate Lawson if (vp->v_type != VNON) 112595fab37eSRobert Watson printf( 112606be2aaaSNate Lawson "vn_refreshlabel: null v_mount with non-VNON\n"); 112795fab37eSRobert Watson return (EBADF); 112895fab37eSRobert Watson } 112995fab37eSRobert Watson 1130e6e370a7SJeff Roberson if (vp->v_vflag & VV_CACHEDLABEL) { 113195fab37eSRobert Watson mac_vnode_label_cache_hits++; 113295fab37eSRobert Watson return (0); 113395fab37eSRobert Watson } else 113495fab37eSRobert Watson mac_vnode_label_cache_misses++; 113595fab37eSRobert Watson 113695fab37eSRobert Watson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 113795fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 113895fab37eSRobert Watson return (0); 113995fab37eSRobert Watson } 114095fab37eSRobert Watson 114195fab37eSRobert Watson error = VOP_REFRESHLABEL(vp, cred, curthread); 114295fab37eSRobert Watson switch (error) { 114395fab37eSRobert Watson case EOPNOTSUPP: 114495fab37eSRobert Watson /* 114595fab37eSRobert Watson * If labels are not supported on this vnode, fall back to 114695fab37eSRobert Watson * the label in the mount and propagate it to the vnode. 114795fab37eSRobert Watson * There should probably be some sort of policy/flag/decision 114895fab37eSRobert Watson * about doing this. 114995fab37eSRobert Watson */ 115095fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 115195fab37eSRobert Watson error = 0; 115295fab37eSRobert Watson default: 115395fab37eSRobert Watson return (error); 115495fab37eSRobert Watson } 115595fab37eSRobert Watson } 115695fab37eSRobert Watson 115795fab37eSRobert Watson /* 115895fab37eSRobert Watson * Helper function for file systems using the vop_std*_ea() calls. This 115995fab37eSRobert Watson * function must be called after EA service is available for the vnode, 116095fab37eSRobert Watson * but before it's hooked up to the namespace so that the node persists 116195fab37eSRobert Watson * if there's a crash, or before it can be accessed. On successful 116295fab37eSRobert Watson * commit of the label to disk (etc), do cache the label. 116395fab37eSRobert Watson */ 116495fab37eSRobert Watson int 116595fab37eSRobert Watson vop_stdcreatevnode_ea(struct vnode *dvp, struct vnode *tvp, struct ucred *cred) 116695fab37eSRobert Watson { 116795fab37eSRobert Watson struct mac extmac; 116895fab37eSRobert Watson int error; 116995fab37eSRobert Watson 1170e6e370a7SJeff Roberson ASSERT_VOP_LOCKED(tvp, "vop_stdcreatevnode_ea"); 117195fab37eSRobert Watson if ((dvp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 117295fab37eSRobert Watson mac_update_vnode_from_mount(tvp, tvp->v_mount); 117395fab37eSRobert Watson } else { 117495fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 117595fab37eSRobert Watson if (error) 117695fab37eSRobert Watson return (error); 117795fab37eSRobert Watson 117895fab37eSRobert Watson /* 117995fab37eSRobert Watson * Stick the label in the vnode. Then try to write to 118095fab37eSRobert Watson * disk. If we fail, return a failure to abort the 118195fab37eSRobert Watson * create operation. Really, this failure shouldn't 118295fab37eSRobert Watson * happen except in fairly unusual circumstances (out 118395fab37eSRobert Watson * of disk, etc). 118495fab37eSRobert Watson */ 118595fab37eSRobert Watson mac_create_vnode(cred, dvp, tvp); 118695fab37eSRobert Watson 118795fab37eSRobert Watson error = mac_stdcreatevnode_ea(tvp); 118895fab37eSRobert Watson if (error) 118995fab37eSRobert Watson return (error); 119095fab37eSRobert Watson 119195fab37eSRobert Watson /* 119295fab37eSRobert Watson * XXX: Eventually this will go away and all policies will 119395fab37eSRobert Watson * directly manage their extended attributes. 119495fab37eSRobert Watson */ 119595fab37eSRobert Watson error = mac_externalize(&tvp->v_label, &extmac); 119695fab37eSRobert Watson if (error) 119795fab37eSRobert Watson return (error); 119895fab37eSRobert Watson 119995fab37eSRobert Watson error = vn_extattr_set(tvp, IO_NODELOCKED, 120095fab37eSRobert Watson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 120195fab37eSRobert Watson sizeof(extmac), (char *)&extmac, curthread); 120295fab37eSRobert Watson if (error == 0) 1203e6e370a7SJeff Roberson tvp->v_vflag |= VV_CACHEDLABEL; 120495fab37eSRobert Watson else { 120595fab37eSRobert Watson #if 0 120695fab37eSRobert Watson /* 120795fab37eSRobert Watson * In theory, we could have fall-back behavior here. 120895fab37eSRobert Watson * It would probably be incorrect. 120995fab37eSRobert Watson */ 121095fab37eSRobert Watson #endif 121195fab37eSRobert Watson return (error); 121295fab37eSRobert Watson } 121395fab37eSRobert Watson } 121495fab37eSRobert Watson 121595fab37eSRobert Watson return (0); 121695fab37eSRobert Watson } 121795fab37eSRobert Watson 121895fab37eSRobert Watson void 121995fab37eSRobert Watson mac_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp) 122095fab37eSRobert Watson { 122195fab37eSRobert Watson int error; 122295fab37eSRobert Watson 122395fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_execve_transition"); 122495fab37eSRobert Watson 122595fab37eSRobert Watson error = vn_refreshlabel(vp, old); 122695fab37eSRobert Watson if (error) { 122795fab37eSRobert Watson printf("mac_execve_transition: vn_refreshlabel returned %d\n", 122895fab37eSRobert Watson error); 122995fab37eSRobert Watson printf("mac_execve_transition: using old vnode label\n"); 123095fab37eSRobert Watson } 123195fab37eSRobert Watson 123295fab37eSRobert Watson MAC_PERFORM(execve_transition, old, new, vp, &vp->v_label); 123395fab37eSRobert Watson } 123495fab37eSRobert Watson 123595fab37eSRobert Watson int 123695fab37eSRobert Watson mac_execve_will_transition(struct ucred *old, struct vnode *vp) 123795fab37eSRobert Watson { 123895fab37eSRobert Watson int error, result; 123995fab37eSRobert Watson 124095fab37eSRobert Watson error = vn_refreshlabel(vp, old); 124195fab37eSRobert Watson if (error) 124295fab37eSRobert Watson return (error); 124395fab37eSRobert Watson 124495fab37eSRobert Watson result = 0; 124595fab37eSRobert Watson MAC_BOOLEAN(execve_will_transition, ||, old, vp, &vp->v_label); 124695fab37eSRobert Watson 124795fab37eSRobert Watson return (result); 124895fab37eSRobert Watson } 124995fab37eSRobert Watson 125095fab37eSRobert Watson static void 125195fab37eSRobert Watson mac_init_label(struct label *label) 125295fab37eSRobert Watson { 125395fab37eSRobert Watson 125495fab37eSRobert Watson bzero(label, sizeof(*label)); 125595fab37eSRobert Watson label->l_flags = MAC_FLAG_INITIALIZED; 125695fab37eSRobert Watson } 125795fab37eSRobert Watson 125895fab37eSRobert Watson static void 125995fab37eSRobert Watson mac_init_structmac(struct mac *mac) 126095fab37eSRobert Watson { 126195fab37eSRobert Watson 126295fab37eSRobert Watson bzero(mac, sizeof(*mac)); 126395fab37eSRobert Watson mac->m_macflags = MAC_FLAG_INITIALIZED; 126495fab37eSRobert Watson } 126595fab37eSRobert Watson 126695fab37eSRobert Watson static void 126795fab37eSRobert Watson mac_destroy_label(struct label *label) 126895fab37eSRobert Watson { 126995fab37eSRobert Watson 127095fab37eSRobert Watson KASSERT(label->l_flags & MAC_FLAG_INITIALIZED, 127195fab37eSRobert Watson ("destroying uninitialized label")); 127295fab37eSRobert Watson 127395fab37eSRobert Watson bzero(label, sizeof(*label)); 127495fab37eSRobert Watson /* implicit: label->l_flags &= ~MAC_FLAG_INITIALIZED; */ 127595fab37eSRobert Watson } 127695fab37eSRobert Watson 127795fab37eSRobert Watson int 127895fab37eSRobert Watson mac_init_mbuf(struct mbuf *m, int how) 127995fab37eSRobert Watson { 128095fab37eSRobert Watson KASSERT(m->m_flags & M_PKTHDR, ("mac_init_mbuf on non-header mbuf")); 128195fab37eSRobert Watson 128295fab37eSRobert Watson /* "how" is one of M_(TRY|DONT)WAIT */ 128395fab37eSRobert Watson mac_init_label(&m->m_pkthdr.label); 128495fab37eSRobert Watson MAC_PERFORM(init_mbuf, m, how, &m->m_pkthdr.label); 1285f050add5SRobert Watson #ifdef MAC_DEBUG 128695fab37eSRobert Watson atomic_add_int(&nmacmbufs, 1); 1287f050add5SRobert Watson #endif 128895fab37eSRobert Watson return (0); 128995fab37eSRobert Watson } 129095fab37eSRobert Watson 129195fab37eSRobert Watson void 129295fab37eSRobert Watson mac_destroy_mbuf(struct mbuf *m) 129395fab37eSRobert Watson { 129495fab37eSRobert Watson 129595fab37eSRobert Watson MAC_PERFORM(destroy_mbuf, m, &m->m_pkthdr.label); 129695fab37eSRobert Watson mac_destroy_label(&m->m_pkthdr.label); 1297f050add5SRobert Watson #ifdef MAC_DEBUG 129895fab37eSRobert Watson atomic_subtract_int(&nmacmbufs, 1); 1299f050add5SRobert Watson #endif 130095fab37eSRobert Watson } 130195fab37eSRobert Watson 130295fab37eSRobert Watson void 130395fab37eSRobert Watson mac_init_cred(struct ucred *cr) 130495fab37eSRobert Watson { 130595fab37eSRobert Watson 130695fab37eSRobert Watson mac_init_label(&cr->cr_label); 130795fab37eSRobert Watson MAC_PERFORM(init_cred, cr, &cr->cr_label); 1308f050add5SRobert Watson #ifdef MAC_DEBUG 130995fab37eSRobert Watson atomic_add_int(&nmaccreds, 1); 1310f050add5SRobert Watson #endif 131195fab37eSRobert Watson } 131295fab37eSRobert Watson 131395fab37eSRobert Watson void 131495fab37eSRobert Watson mac_destroy_cred(struct ucred *cr) 131595fab37eSRobert Watson { 131695fab37eSRobert Watson 131795fab37eSRobert Watson MAC_PERFORM(destroy_cred, cr, &cr->cr_label); 131895fab37eSRobert Watson mac_destroy_label(&cr->cr_label); 1319f050add5SRobert Watson #ifdef MAC_DEBUG 132095fab37eSRobert Watson atomic_subtract_int(&nmaccreds, 1); 1321f050add5SRobert Watson #endif 132295fab37eSRobert Watson } 132395fab37eSRobert Watson 132495fab37eSRobert Watson void 132595fab37eSRobert Watson mac_init_ifnet(struct ifnet *ifp) 132695fab37eSRobert Watson { 132795fab37eSRobert Watson 132895fab37eSRobert Watson mac_init_label(&ifp->if_label); 132995fab37eSRobert Watson MAC_PERFORM(init_ifnet, ifp, &ifp->if_label); 1330f050add5SRobert Watson #ifdef MAC_DEBUG 133195fab37eSRobert Watson atomic_add_int(&nmacifnets, 1); 1332f050add5SRobert Watson #endif 133395fab37eSRobert Watson } 133495fab37eSRobert Watson 133595fab37eSRobert Watson void 133695fab37eSRobert Watson mac_destroy_ifnet(struct ifnet *ifp) 133795fab37eSRobert Watson { 133895fab37eSRobert Watson 133995fab37eSRobert Watson MAC_PERFORM(destroy_ifnet, ifp, &ifp->if_label); 134095fab37eSRobert Watson mac_destroy_label(&ifp->if_label); 1341f050add5SRobert Watson #ifdef MAC_DEBUG 134295fab37eSRobert Watson atomic_subtract_int(&nmacifnets, 1); 1343f050add5SRobert Watson #endif 134495fab37eSRobert Watson } 134595fab37eSRobert Watson 134695fab37eSRobert Watson void 134795fab37eSRobert Watson mac_init_ipq(struct ipq *ipq) 134895fab37eSRobert Watson { 134995fab37eSRobert Watson 135095fab37eSRobert Watson mac_init_label(&ipq->ipq_label); 135195fab37eSRobert Watson MAC_PERFORM(init_ipq, ipq, &ipq->ipq_label); 1352f050add5SRobert Watson #ifdef MAC_DEBUG 135395fab37eSRobert Watson atomic_add_int(&nmacipqs, 1); 1354f050add5SRobert Watson #endif 135595fab37eSRobert Watson } 135695fab37eSRobert Watson 135795fab37eSRobert Watson void 135895fab37eSRobert Watson mac_destroy_ipq(struct ipq *ipq) 135995fab37eSRobert Watson { 136095fab37eSRobert Watson 136195fab37eSRobert Watson MAC_PERFORM(destroy_ipq, ipq, &ipq->ipq_label); 136295fab37eSRobert Watson mac_destroy_label(&ipq->ipq_label); 1363f050add5SRobert Watson #ifdef MAC_DEBUG 136495fab37eSRobert Watson atomic_subtract_int(&nmacipqs, 1); 1365f050add5SRobert Watson #endif 136695fab37eSRobert Watson } 136795fab37eSRobert Watson 136895fab37eSRobert Watson void 136995fab37eSRobert Watson mac_init_socket(struct socket *socket) 137095fab37eSRobert Watson { 137195fab37eSRobert Watson 137295fab37eSRobert Watson mac_init_label(&socket->so_label); 137395fab37eSRobert Watson mac_init_label(&socket->so_peerlabel); 137495fab37eSRobert Watson MAC_PERFORM(init_socket, socket, &socket->so_label, 137595fab37eSRobert Watson &socket->so_peerlabel); 1376f050add5SRobert Watson #ifdef MAC_DEBUG 137795fab37eSRobert Watson atomic_add_int(&nmacsockets, 1); 1378f050add5SRobert Watson #endif 137995fab37eSRobert Watson } 138095fab37eSRobert Watson 138195fab37eSRobert Watson void 138295fab37eSRobert Watson mac_destroy_socket(struct socket *socket) 138395fab37eSRobert Watson { 138495fab37eSRobert Watson 138595fab37eSRobert Watson MAC_PERFORM(destroy_socket, socket, &socket->so_label, 138695fab37eSRobert Watson &socket->so_peerlabel); 138795fab37eSRobert Watson mac_destroy_label(&socket->so_label); 138895fab37eSRobert Watson mac_destroy_label(&socket->so_peerlabel); 1389f050add5SRobert Watson #ifdef MAC_DEBUG 139095fab37eSRobert Watson atomic_subtract_int(&nmacsockets, 1); 1391f050add5SRobert Watson #endif 139295fab37eSRobert Watson } 139395fab37eSRobert Watson 139495fab37eSRobert Watson void 139595fab37eSRobert Watson mac_init_pipe(struct pipe *pipe) 139695fab37eSRobert Watson { 139795fab37eSRobert Watson struct label *label; 139895fab37eSRobert Watson 139995fab37eSRobert Watson label = malloc(sizeof(struct label), M_MACPIPELABEL, M_ZERO|M_WAITOK); 140095fab37eSRobert Watson mac_init_label(label); 140195fab37eSRobert Watson pipe->pipe_label = label; 140295fab37eSRobert Watson pipe->pipe_peer->pipe_label = label; 140395fab37eSRobert Watson MAC_PERFORM(init_pipe, pipe, pipe->pipe_label); 1404f050add5SRobert Watson #ifdef MAC_DEBUG 140595fab37eSRobert Watson atomic_add_int(&nmacpipes, 1); 1406f050add5SRobert Watson #endif 140795fab37eSRobert Watson } 140895fab37eSRobert Watson 140995fab37eSRobert Watson void 141095fab37eSRobert Watson mac_destroy_pipe(struct pipe *pipe) 141195fab37eSRobert Watson { 141295fab37eSRobert Watson 141395fab37eSRobert Watson MAC_PERFORM(destroy_pipe, pipe, pipe->pipe_label); 141495fab37eSRobert Watson mac_destroy_label(pipe->pipe_label); 141595fab37eSRobert Watson free(pipe->pipe_label, M_MACPIPELABEL); 1416f050add5SRobert Watson #ifdef MAC_DEBUG 141795fab37eSRobert Watson atomic_subtract_int(&nmacpipes, 1); 1418f050add5SRobert Watson #endif 141995fab37eSRobert Watson } 142095fab37eSRobert Watson 142195fab37eSRobert Watson void 142295fab37eSRobert Watson mac_init_bpfdesc(struct bpf_d *bpf_d) 142395fab37eSRobert Watson { 142495fab37eSRobert Watson 142595fab37eSRobert Watson mac_init_label(&bpf_d->bd_label); 142695fab37eSRobert Watson MAC_PERFORM(init_bpfdesc, bpf_d, &bpf_d->bd_label); 1427f050add5SRobert Watson #ifdef MAC_DEBUG 142895fab37eSRobert Watson atomic_add_int(&nmacbpfdescs, 1); 1429f050add5SRobert Watson #endif 143095fab37eSRobert Watson } 143195fab37eSRobert Watson 143295fab37eSRobert Watson void 143395fab37eSRobert Watson mac_destroy_bpfdesc(struct bpf_d *bpf_d) 143495fab37eSRobert Watson { 143595fab37eSRobert Watson 143695fab37eSRobert Watson MAC_PERFORM(destroy_bpfdesc, bpf_d, &bpf_d->bd_label); 143795fab37eSRobert Watson mac_destroy_label(&bpf_d->bd_label); 1438f050add5SRobert Watson #ifdef MAC_DEBUG 143995fab37eSRobert Watson atomic_subtract_int(&nmacbpfdescs, 1); 1440f050add5SRobert Watson #endif 144195fab37eSRobert Watson } 144295fab37eSRobert Watson 144395fab37eSRobert Watson void 144495fab37eSRobert Watson mac_init_mount(struct mount *mp) 144595fab37eSRobert Watson { 144695fab37eSRobert Watson 144795fab37eSRobert Watson mac_init_label(&mp->mnt_mntlabel); 144895fab37eSRobert Watson mac_init_label(&mp->mnt_fslabel); 144995fab37eSRobert Watson MAC_PERFORM(init_mount, mp, &mp->mnt_mntlabel, &mp->mnt_fslabel); 1450f050add5SRobert Watson #ifdef MAC_DEBUG 145195fab37eSRobert Watson atomic_add_int(&nmacmounts, 1); 1452f050add5SRobert Watson #endif 145395fab37eSRobert Watson } 145495fab37eSRobert Watson 145595fab37eSRobert Watson void 145695fab37eSRobert Watson mac_destroy_mount(struct mount *mp) 145795fab37eSRobert Watson { 145895fab37eSRobert Watson 145995fab37eSRobert Watson MAC_PERFORM(destroy_mount, mp, &mp->mnt_mntlabel, &mp->mnt_fslabel); 146095fab37eSRobert Watson mac_destroy_label(&mp->mnt_fslabel); 146195fab37eSRobert Watson mac_destroy_label(&mp->mnt_mntlabel); 1462f050add5SRobert Watson #ifdef MAC_DEBUG 146395fab37eSRobert Watson atomic_subtract_int(&nmacmounts, 1); 1464f050add5SRobert Watson #endif 146595fab37eSRobert Watson } 146695fab37eSRobert Watson 146795fab37eSRobert Watson static void 146895fab37eSRobert Watson mac_init_temp(struct label *label) 146995fab37eSRobert Watson { 147095fab37eSRobert Watson 147195fab37eSRobert Watson mac_init_label(label); 147295fab37eSRobert Watson MAC_PERFORM(init_temp, label); 1473f050add5SRobert Watson #ifdef MAC_DEBUG 147495fab37eSRobert Watson atomic_add_int(&nmactemp, 1); 1475f050add5SRobert Watson #endif 147695fab37eSRobert Watson } 147795fab37eSRobert Watson 147895fab37eSRobert Watson static void 147995fab37eSRobert Watson mac_destroy_temp(struct label *label) 148095fab37eSRobert Watson { 148195fab37eSRobert Watson 148295fab37eSRobert Watson MAC_PERFORM(destroy_temp, label); 148395fab37eSRobert Watson mac_destroy_label(label); 1484f050add5SRobert Watson #ifdef MAC_DEBUG 148595fab37eSRobert Watson atomic_subtract_int(&nmactemp, 1); 1486f050add5SRobert Watson #endif 148795fab37eSRobert Watson } 148895fab37eSRobert Watson 148995fab37eSRobert Watson void 149095fab37eSRobert Watson mac_init_vnode(struct vnode *vp) 149195fab37eSRobert Watson { 149295fab37eSRobert Watson 149395fab37eSRobert Watson mac_init_label(&vp->v_label); 149495fab37eSRobert Watson MAC_PERFORM(init_vnode, vp, &vp->v_label); 1495f050add5SRobert Watson #ifdef MAC_DEBUG 149695fab37eSRobert Watson atomic_add_int(&nmacvnodes, 1); 1497f050add5SRobert Watson #endif 149895fab37eSRobert Watson } 149995fab37eSRobert Watson 150095fab37eSRobert Watson void 150195fab37eSRobert Watson mac_destroy_vnode(struct vnode *vp) 150295fab37eSRobert Watson { 150395fab37eSRobert Watson 150495fab37eSRobert Watson MAC_PERFORM(destroy_vnode, vp, &vp->v_label); 150595fab37eSRobert Watson mac_destroy_label(&vp->v_label); 1506f050add5SRobert Watson #ifdef MAC_DEBUG 150795fab37eSRobert Watson atomic_subtract_int(&nmacvnodes, 1); 1508f050add5SRobert Watson #endif 150995fab37eSRobert Watson } 151095fab37eSRobert Watson 151195fab37eSRobert Watson void 151295fab37eSRobert Watson mac_init_devfsdirent(struct devfs_dirent *de) 151395fab37eSRobert Watson { 151495fab37eSRobert Watson 151595fab37eSRobert Watson mac_init_label(&de->de_label); 151695fab37eSRobert Watson MAC_PERFORM(init_devfsdirent, de, &de->de_label); 1517f050add5SRobert Watson #ifdef MAC_DEBUG 151895fab37eSRobert Watson atomic_add_int(&nmacdevfsdirents, 1); 1519f050add5SRobert Watson #endif 152095fab37eSRobert Watson } 152195fab37eSRobert Watson 152295fab37eSRobert Watson void 152395fab37eSRobert Watson mac_destroy_devfsdirent(struct devfs_dirent *de) 152495fab37eSRobert Watson { 152595fab37eSRobert Watson 152695fab37eSRobert Watson MAC_PERFORM(destroy_devfsdirent, de, &de->de_label); 152795fab37eSRobert Watson mac_destroy_label(&de->de_label); 1528f050add5SRobert Watson #ifdef MAC_DEBUG 152995fab37eSRobert Watson atomic_subtract_int(&nmacdevfsdirents, 1); 1530f050add5SRobert Watson #endif 153195fab37eSRobert Watson } 153295fab37eSRobert Watson 153395fab37eSRobert Watson static int 153495fab37eSRobert Watson mac_externalize(struct label *label, struct mac *mac) 153595fab37eSRobert Watson { 153695fab37eSRobert Watson int error; 153795fab37eSRobert Watson 153895fab37eSRobert Watson mac_init_structmac(mac); 153995fab37eSRobert Watson MAC_CHECK(externalize, label, mac); 154095fab37eSRobert Watson 154195fab37eSRobert Watson return (error); 154295fab37eSRobert Watson } 154395fab37eSRobert Watson 154495fab37eSRobert Watson static int 154595fab37eSRobert Watson mac_internalize(struct label *label, struct mac *mac) 154695fab37eSRobert Watson { 154795fab37eSRobert Watson int error; 154895fab37eSRobert Watson 154995fab37eSRobert Watson mac_init_temp(label); 155095fab37eSRobert Watson MAC_CHECK(internalize, label, mac); 155195fab37eSRobert Watson if (error) 155295fab37eSRobert Watson mac_destroy_temp(label); 155395fab37eSRobert Watson 155495fab37eSRobert Watson return (error); 155595fab37eSRobert Watson } 155695fab37eSRobert Watson 155795fab37eSRobert Watson /* 155895fab37eSRobert Watson * Initialize MAC label for the first kernel process, from which other 155995fab37eSRobert Watson * kernel processes and threads are spawned. 156095fab37eSRobert Watson */ 156195fab37eSRobert Watson void 156295fab37eSRobert Watson mac_create_proc0(struct ucred *cred) 156395fab37eSRobert Watson { 156495fab37eSRobert Watson 156595fab37eSRobert Watson MAC_PERFORM(create_proc0, cred); 156695fab37eSRobert Watson } 156795fab37eSRobert Watson 156895fab37eSRobert Watson /* 156995fab37eSRobert Watson * Initialize MAC label for the first userland process, from which other 157095fab37eSRobert Watson * userland processes and threads are spawned. 157195fab37eSRobert Watson */ 157295fab37eSRobert Watson void 157395fab37eSRobert Watson mac_create_proc1(struct ucred *cred) 157495fab37eSRobert Watson { 157595fab37eSRobert Watson 157695fab37eSRobert Watson MAC_PERFORM(create_proc1, cred); 157795fab37eSRobert Watson } 157895fab37eSRobert Watson 157995fab37eSRobert Watson /* 158095fab37eSRobert Watson * When a new process is created, its label must be initialized. Generally, 158195fab37eSRobert Watson * this involves inheritence from the parent process, modulo possible 158295fab37eSRobert Watson * deltas. This function allows that processing to take place. 158395fab37eSRobert Watson */ 158495fab37eSRobert Watson void 158595fab37eSRobert Watson mac_create_cred(struct ucred *parent_cred, struct ucred *child_cred) 158695fab37eSRobert Watson { 158795fab37eSRobert Watson 158895fab37eSRobert Watson MAC_PERFORM(create_cred, parent_cred, child_cred); 158995fab37eSRobert Watson } 159095fab37eSRobert Watson 159195fab37eSRobert Watson int 159295fab37eSRobert Watson mac_check_vnode_access(struct ucred *cred, struct vnode *vp, int flags) 159395fab37eSRobert Watson { 159495fab37eSRobert Watson int error; 159595fab37eSRobert Watson 159695fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_access"); 159795fab37eSRobert Watson 159895fab37eSRobert Watson if (!mac_enforce_fs) 159995fab37eSRobert Watson return (0); 160095fab37eSRobert Watson 160195fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 160295fab37eSRobert Watson if (error) 160395fab37eSRobert Watson return (error); 160495fab37eSRobert Watson 160595fab37eSRobert Watson MAC_CHECK(check_vnode_access, cred, vp, &vp->v_label, flags); 160695fab37eSRobert Watson return (error); 160795fab37eSRobert Watson } 160895fab37eSRobert Watson 160995fab37eSRobert Watson int 161095fab37eSRobert Watson mac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp) 161195fab37eSRobert Watson { 161295fab37eSRobert Watson int error; 161395fab37eSRobert Watson 161495fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chdir"); 161595fab37eSRobert Watson 161695fab37eSRobert Watson if (!mac_enforce_fs) 161795fab37eSRobert Watson return (0); 161895fab37eSRobert Watson 161995fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 162095fab37eSRobert Watson if (error) 162195fab37eSRobert Watson return (error); 162295fab37eSRobert Watson 162395fab37eSRobert Watson MAC_CHECK(check_vnode_chdir, cred, dvp, &dvp->v_label); 162495fab37eSRobert Watson return (error); 162595fab37eSRobert Watson } 162695fab37eSRobert Watson 162795fab37eSRobert Watson int 162895fab37eSRobert Watson mac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp) 162995fab37eSRobert Watson { 163095fab37eSRobert Watson int error; 163195fab37eSRobert Watson 163295fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chroot"); 163395fab37eSRobert Watson 163495fab37eSRobert Watson if (!mac_enforce_fs) 163595fab37eSRobert Watson return (0); 163695fab37eSRobert Watson 163795fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 163895fab37eSRobert Watson if (error) 163995fab37eSRobert Watson return (error); 164095fab37eSRobert Watson 164195fab37eSRobert Watson MAC_CHECK(check_vnode_chroot, cred, dvp, &dvp->v_label); 164295fab37eSRobert Watson return (error); 164395fab37eSRobert Watson } 164495fab37eSRobert Watson 164595fab37eSRobert Watson int 164695fab37eSRobert Watson mac_check_vnode_create(struct ucred *cred, struct vnode *dvp, 164795fab37eSRobert Watson struct componentname *cnp, struct vattr *vap) 164895fab37eSRobert Watson { 164995fab37eSRobert Watson int error; 165095fab37eSRobert Watson 165195fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_create"); 165295fab37eSRobert Watson 165395fab37eSRobert Watson if (!mac_enforce_fs) 165495fab37eSRobert Watson return (0); 165595fab37eSRobert Watson 165695fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 165795fab37eSRobert Watson if (error) 165895fab37eSRobert Watson return (error); 165995fab37eSRobert Watson 166095fab37eSRobert Watson MAC_CHECK(check_vnode_create, cred, dvp, &dvp->v_label, cnp, vap); 166195fab37eSRobert Watson return (error); 166295fab37eSRobert Watson } 166395fab37eSRobert Watson 166495fab37eSRobert Watson int 166595fab37eSRobert Watson mac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, struct vnode *vp, 166695fab37eSRobert Watson struct componentname *cnp) 166795fab37eSRobert Watson { 166895fab37eSRobert Watson int error; 166995fab37eSRobert Watson 167095fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_delete"); 167195fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_delete"); 167295fab37eSRobert Watson 167395fab37eSRobert Watson if (!mac_enforce_fs) 167495fab37eSRobert Watson return (0); 167595fab37eSRobert Watson 167695fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 167795fab37eSRobert Watson if (error) 167895fab37eSRobert Watson return (error); 167995fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 168095fab37eSRobert Watson if (error) 168195fab37eSRobert Watson return (error); 168295fab37eSRobert Watson 168395fab37eSRobert Watson MAC_CHECK(check_vnode_delete, cred, dvp, &dvp->v_label, vp, 168495fab37eSRobert Watson &vp->v_label, cnp); 168595fab37eSRobert Watson return (error); 168695fab37eSRobert Watson } 168795fab37eSRobert Watson 168895fab37eSRobert Watson int 168995fab37eSRobert Watson mac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 169095fab37eSRobert Watson acl_type_t type) 169195fab37eSRobert Watson { 169295fab37eSRobert Watson int error; 169395fab37eSRobert Watson 169495fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_deleteacl"); 169595fab37eSRobert Watson 169695fab37eSRobert Watson if (!mac_enforce_fs) 169795fab37eSRobert Watson return (0); 169895fab37eSRobert Watson 169995fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 170095fab37eSRobert Watson if (error) 170195fab37eSRobert Watson return (error); 170295fab37eSRobert Watson 170395fab37eSRobert Watson MAC_CHECK(check_vnode_deleteacl, cred, vp, &vp->v_label, type); 170495fab37eSRobert Watson return (error); 170595fab37eSRobert Watson } 170695fab37eSRobert Watson 170795fab37eSRobert Watson int 170895fab37eSRobert Watson mac_check_vnode_exec(struct ucred *cred, struct vnode *vp) 170995fab37eSRobert Watson { 171095fab37eSRobert Watson int error; 171195fab37eSRobert Watson 1712851704bbSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_exec"); 1713851704bbSRobert Watson 171495fab37eSRobert Watson if (!mac_enforce_process && !mac_enforce_fs) 171595fab37eSRobert Watson return (0); 171695fab37eSRobert Watson 171795fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 171895fab37eSRobert Watson if (error) 171995fab37eSRobert Watson return (error); 172095fab37eSRobert Watson MAC_CHECK(check_vnode_exec, cred, vp, &vp->v_label); 172195fab37eSRobert Watson 172295fab37eSRobert Watson return (error); 172395fab37eSRobert Watson } 172495fab37eSRobert Watson 172595fab37eSRobert Watson int 172695fab37eSRobert Watson mac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, acl_type_t type) 172795fab37eSRobert Watson { 172895fab37eSRobert Watson int error; 172995fab37eSRobert Watson 173095fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getacl"); 173195fab37eSRobert Watson 173295fab37eSRobert Watson if (!mac_enforce_fs) 173395fab37eSRobert Watson return (0); 173495fab37eSRobert Watson 173595fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 173695fab37eSRobert Watson if (error) 173795fab37eSRobert Watson return (error); 173895fab37eSRobert Watson 173995fab37eSRobert Watson MAC_CHECK(check_vnode_getacl, cred, vp, &vp->v_label, type); 174095fab37eSRobert Watson return (error); 174195fab37eSRobert Watson } 174295fab37eSRobert Watson 174395fab37eSRobert Watson int 174495fab37eSRobert Watson mac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 174595fab37eSRobert Watson int attrnamespace, const char *name, struct uio *uio) 174695fab37eSRobert Watson { 174795fab37eSRobert Watson int error; 174895fab37eSRobert Watson 174995fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getextattr"); 175095fab37eSRobert Watson 175195fab37eSRobert Watson if (!mac_enforce_fs) 175295fab37eSRobert Watson return (0); 175395fab37eSRobert Watson 175495fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 175595fab37eSRobert Watson if (error) 175695fab37eSRobert Watson return (error); 175795fab37eSRobert Watson 175895fab37eSRobert Watson MAC_CHECK(check_vnode_getextattr, cred, vp, &vp->v_label, 175995fab37eSRobert Watson attrnamespace, name, uio); 176095fab37eSRobert Watson return (error); 176195fab37eSRobert Watson } 176295fab37eSRobert Watson 176395fab37eSRobert Watson int 176495fab37eSRobert Watson mac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 176595fab37eSRobert Watson struct componentname *cnp) 176695fab37eSRobert Watson { 176795fab37eSRobert Watson int error; 176895fab37eSRobert Watson 176995fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_lookup"); 177095fab37eSRobert Watson 177195fab37eSRobert Watson if (!mac_enforce_fs) 177295fab37eSRobert Watson return (0); 177395fab37eSRobert Watson 177495fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 177595fab37eSRobert Watson if (error) 177695fab37eSRobert Watson return (error); 177795fab37eSRobert Watson 177895fab37eSRobert Watson MAC_CHECK(check_vnode_lookup, cred, dvp, &dvp->v_label, cnp); 177995fab37eSRobert Watson return (error); 178095fab37eSRobert Watson } 178195fab37eSRobert Watson 178295fab37eSRobert Watson vm_prot_t 178395fab37eSRobert Watson mac_check_vnode_mmap_prot(struct ucred *cred, struct vnode *vp, int newmapping) 178495fab37eSRobert Watson { 178595fab37eSRobert Watson vm_prot_t result = VM_PROT_ALL; 178695fab37eSRobert Watson 1787ca7850c3SRobert Watson if (!mac_enforce_vm) 1788ca7850c3SRobert Watson return (result); 1789ca7850c3SRobert Watson 179095fab37eSRobert Watson /* 179195fab37eSRobert Watson * This should be some sort of MAC_BITWISE, maybe :) 179295fab37eSRobert Watson */ 179395fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_mmap_perms"); 179495fab37eSRobert Watson MAC_BOOLEAN(check_vnode_mmap_perms, &, cred, vp, &vp->v_label, 179595fab37eSRobert Watson newmapping); 179695fab37eSRobert Watson return (result); 179795fab37eSRobert Watson } 179895fab37eSRobert Watson 179995fab37eSRobert Watson int 180095fab37eSRobert Watson mac_check_vnode_open(struct ucred *cred, struct vnode *vp, mode_t acc_mode) 180195fab37eSRobert Watson { 180295fab37eSRobert Watson int error; 180395fab37eSRobert Watson 180495fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_open"); 180595fab37eSRobert Watson 180695fab37eSRobert Watson if (!mac_enforce_fs) 180795fab37eSRobert Watson return (0); 180895fab37eSRobert Watson 180995fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 181095fab37eSRobert Watson if (error) 181195fab37eSRobert Watson return (error); 181295fab37eSRobert Watson 181395fab37eSRobert Watson MAC_CHECK(check_vnode_open, cred, vp, &vp->v_label, acc_mode); 181495fab37eSRobert Watson return (error); 181595fab37eSRobert Watson } 181695fab37eSRobert Watson 181795fab37eSRobert Watson int 1818177142e4SRobert Watson mac_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 1819177142e4SRobert Watson struct vnode *vp) 18207f724f8bSRobert Watson { 18217f724f8bSRobert Watson int error; 18227f724f8bSRobert Watson 18237f724f8bSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_poll"); 18247f724f8bSRobert Watson 18257f724f8bSRobert Watson if (!mac_enforce_fs) 18267f724f8bSRobert Watson return (0); 18277f724f8bSRobert Watson 1828177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 18297f724f8bSRobert Watson if (error) 18307f724f8bSRobert Watson return (error); 18317f724f8bSRobert Watson 1832177142e4SRobert Watson MAC_CHECK(check_vnode_poll, active_cred, file_cred, vp, 1833177142e4SRobert Watson &vp->v_label); 18347f724f8bSRobert Watson 18357f724f8bSRobert Watson return (error); 18367f724f8bSRobert Watson } 18377f724f8bSRobert Watson 18387f724f8bSRobert Watson int 1839177142e4SRobert Watson mac_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 1840177142e4SRobert Watson struct vnode *vp) 18417f724f8bSRobert Watson { 18427f724f8bSRobert Watson int error; 18437f724f8bSRobert Watson 18447f724f8bSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_read"); 18457f724f8bSRobert Watson 18467f724f8bSRobert Watson if (!mac_enforce_fs) 18477f724f8bSRobert Watson return (0); 18487f724f8bSRobert Watson 1849177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 18507f724f8bSRobert Watson if (error) 18517f724f8bSRobert Watson return (error); 18527f724f8bSRobert Watson 1853177142e4SRobert Watson MAC_CHECK(check_vnode_read, active_cred, file_cred, vp, 1854177142e4SRobert Watson &vp->v_label); 18557f724f8bSRobert Watson 18567f724f8bSRobert Watson return (error); 18577f724f8bSRobert Watson } 18587f724f8bSRobert Watson 18597f724f8bSRobert Watson int 186095fab37eSRobert Watson mac_check_vnode_readdir(struct ucred *cred, struct vnode *dvp) 186195fab37eSRobert Watson { 186295fab37eSRobert Watson int error; 186395fab37eSRobert Watson 186495fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_readdir"); 186595fab37eSRobert Watson 186695fab37eSRobert Watson if (!mac_enforce_fs) 186795fab37eSRobert Watson return (0); 186895fab37eSRobert Watson 186995fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 187095fab37eSRobert Watson if (error) 187195fab37eSRobert Watson return (error); 187295fab37eSRobert Watson 187395fab37eSRobert Watson MAC_CHECK(check_vnode_readdir, cred, dvp, &dvp->v_label); 187495fab37eSRobert Watson return (error); 187595fab37eSRobert Watson } 187695fab37eSRobert Watson 187795fab37eSRobert Watson int 187895fab37eSRobert Watson mac_check_vnode_readlink(struct ucred *cred, struct vnode *vp) 187995fab37eSRobert Watson { 188095fab37eSRobert Watson int error; 188195fab37eSRobert Watson 188295fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_readlink"); 188395fab37eSRobert Watson 188495fab37eSRobert Watson if (!mac_enforce_fs) 188595fab37eSRobert Watson return (0); 188695fab37eSRobert Watson 188795fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 188895fab37eSRobert Watson if (error) 188995fab37eSRobert Watson return (error); 189095fab37eSRobert Watson 189195fab37eSRobert Watson MAC_CHECK(check_vnode_readlink, cred, vp, &vp->v_label); 189295fab37eSRobert Watson return (error); 189395fab37eSRobert Watson } 189495fab37eSRobert Watson 189595fab37eSRobert Watson static int 189695fab37eSRobert Watson mac_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 189795fab37eSRobert Watson struct label *newlabel) 189895fab37eSRobert Watson { 189995fab37eSRobert Watson int error; 190095fab37eSRobert Watson 190195fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_relabel"); 190295fab37eSRobert Watson 190395fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 190495fab37eSRobert Watson if (error) 190595fab37eSRobert Watson return (error); 190695fab37eSRobert Watson 190795fab37eSRobert Watson MAC_CHECK(check_vnode_relabel, cred, vp, &vp->v_label, newlabel); 190895fab37eSRobert Watson 190995fab37eSRobert Watson return (error); 191095fab37eSRobert Watson } 191195fab37eSRobert Watson 191295fab37eSRobert Watson int 191395fab37eSRobert Watson mac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 191495fab37eSRobert Watson struct vnode *vp, struct componentname *cnp) 191595fab37eSRobert Watson { 191695fab37eSRobert Watson int error; 191795fab37eSRobert Watson 191895fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_from"); 191995fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_from"); 192095fab37eSRobert Watson 192195fab37eSRobert Watson if (!mac_enforce_fs) 192295fab37eSRobert Watson return (0); 192395fab37eSRobert Watson 192495fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 192595fab37eSRobert Watson if (error) 192695fab37eSRobert Watson return (error); 192795fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 192895fab37eSRobert Watson if (error) 192995fab37eSRobert Watson return (error); 193095fab37eSRobert Watson 193195fab37eSRobert Watson MAC_CHECK(check_vnode_rename_from, cred, dvp, &dvp->v_label, vp, 193295fab37eSRobert Watson &vp->v_label, cnp); 193395fab37eSRobert Watson return (error); 193495fab37eSRobert Watson } 193595fab37eSRobert Watson 193695fab37eSRobert Watson int 193795fab37eSRobert Watson mac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 193895fab37eSRobert Watson struct vnode *vp, int samedir, struct componentname *cnp) 193995fab37eSRobert Watson { 194095fab37eSRobert Watson int error; 194195fab37eSRobert Watson 194295fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_to"); 194395fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_to"); 194495fab37eSRobert Watson 194595fab37eSRobert Watson if (!mac_enforce_fs) 194695fab37eSRobert Watson return (0); 194795fab37eSRobert Watson 194895fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 194995fab37eSRobert Watson if (error) 195095fab37eSRobert Watson return (error); 195195fab37eSRobert Watson if (vp != NULL) { 195295fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 195395fab37eSRobert Watson if (error) 195495fab37eSRobert Watson return (error); 195595fab37eSRobert Watson } 195695fab37eSRobert Watson MAC_CHECK(check_vnode_rename_to, cred, dvp, &dvp->v_label, vp, 195795fab37eSRobert Watson vp != NULL ? &vp->v_label : NULL, samedir, cnp); 195895fab37eSRobert Watson return (error); 195995fab37eSRobert Watson } 196095fab37eSRobert Watson 196195fab37eSRobert Watson int 196295fab37eSRobert Watson mac_check_vnode_revoke(struct ucred *cred, struct vnode *vp) 196395fab37eSRobert Watson { 196495fab37eSRobert Watson int error; 196595fab37eSRobert Watson 196695fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_revoke"); 196795fab37eSRobert Watson 196895fab37eSRobert Watson if (!mac_enforce_fs) 196995fab37eSRobert Watson return (0); 197095fab37eSRobert Watson 197195fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 197295fab37eSRobert Watson if (error) 197395fab37eSRobert Watson return (error); 197495fab37eSRobert Watson 197595fab37eSRobert Watson MAC_CHECK(check_vnode_revoke, cred, vp, &vp->v_label); 197695fab37eSRobert Watson return (error); 197795fab37eSRobert Watson } 197895fab37eSRobert Watson 197995fab37eSRobert Watson int 198095fab37eSRobert Watson mac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, acl_type_t type, 198195fab37eSRobert Watson struct acl *acl) 198295fab37eSRobert Watson { 198395fab37eSRobert Watson int error; 198495fab37eSRobert Watson 198595fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setacl"); 198695fab37eSRobert Watson 198795fab37eSRobert Watson if (!mac_enforce_fs) 198895fab37eSRobert Watson return (0); 198995fab37eSRobert Watson 199095fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 199195fab37eSRobert Watson if (error) 199295fab37eSRobert Watson return (error); 199395fab37eSRobert Watson 199495fab37eSRobert Watson MAC_CHECK(check_vnode_setacl, cred, vp, &vp->v_label, type, acl); 199595fab37eSRobert Watson return (error); 199695fab37eSRobert Watson } 199795fab37eSRobert Watson 199895fab37eSRobert Watson int 199995fab37eSRobert Watson mac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 200095fab37eSRobert Watson int attrnamespace, const char *name, struct uio *uio) 200195fab37eSRobert Watson { 200295fab37eSRobert Watson int error; 200395fab37eSRobert Watson 200495fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setextattr"); 200595fab37eSRobert Watson 200695fab37eSRobert Watson if (!mac_enforce_fs) 200795fab37eSRobert Watson return (0); 200895fab37eSRobert Watson 200995fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 201095fab37eSRobert Watson if (error) 201195fab37eSRobert Watson return (error); 201295fab37eSRobert Watson 201395fab37eSRobert Watson MAC_CHECK(check_vnode_setextattr, cred, vp, &vp->v_label, 201495fab37eSRobert Watson attrnamespace, name, uio); 201595fab37eSRobert Watson return (error); 201695fab37eSRobert Watson } 201795fab37eSRobert Watson 201895fab37eSRobert Watson int 201995fab37eSRobert Watson mac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, u_long flags) 202095fab37eSRobert Watson { 202195fab37eSRobert Watson int error; 202295fab37eSRobert Watson 202395fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setflags"); 202495fab37eSRobert Watson 202595fab37eSRobert Watson if (!mac_enforce_fs) 202695fab37eSRobert Watson return (0); 202795fab37eSRobert Watson 202895fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 202995fab37eSRobert Watson if (error) 203095fab37eSRobert Watson return (error); 203195fab37eSRobert Watson 203295fab37eSRobert Watson MAC_CHECK(check_vnode_setflags, cred, vp, &vp->v_label, flags); 203395fab37eSRobert Watson return (error); 203495fab37eSRobert Watson } 203595fab37eSRobert Watson 203695fab37eSRobert Watson int 203795fab37eSRobert Watson mac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, mode_t mode) 203895fab37eSRobert Watson { 203995fab37eSRobert Watson int error; 204095fab37eSRobert Watson 204195fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setmode"); 204295fab37eSRobert Watson 204395fab37eSRobert Watson if (!mac_enforce_fs) 204495fab37eSRobert Watson return (0); 204595fab37eSRobert Watson 204695fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 204795fab37eSRobert Watson if (error) 204895fab37eSRobert Watson return (error); 204995fab37eSRobert Watson 205095fab37eSRobert Watson MAC_CHECK(check_vnode_setmode, cred, vp, &vp->v_label, mode); 205195fab37eSRobert Watson return (error); 205295fab37eSRobert Watson } 205395fab37eSRobert Watson 205495fab37eSRobert Watson int 205595fab37eSRobert Watson mac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, uid_t uid, 205695fab37eSRobert Watson gid_t gid) 205795fab37eSRobert Watson { 205895fab37eSRobert Watson int error; 205995fab37eSRobert Watson 206095fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setowner"); 206195fab37eSRobert Watson 206295fab37eSRobert Watson if (!mac_enforce_fs) 206395fab37eSRobert Watson return (0); 206495fab37eSRobert Watson 206595fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 206695fab37eSRobert Watson if (error) 206795fab37eSRobert Watson return (error); 206895fab37eSRobert Watson 206995fab37eSRobert Watson MAC_CHECK(check_vnode_setowner, cred, vp, &vp->v_label, uid, gid); 207095fab37eSRobert Watson return (error); 207195fab37eSRobert Watson } 207295fab37eSRobert Watson 207395fab37eSRobert Watson int 207495fab37eSRobert Watson mac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 207595fab37eSRobert Watson struct timespec atime, struct timespec mtime) 207695fab37eSRobert Watson { 207795fab37eSRobert Watson int error; 207895fab37eSRobert Watson 207995fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setutimes"); 208095fab37eSRobert Watson 208195fab37eSRobert Watson if (!mac_enforce_fs) 208295fab37eSRobert Watson return (0); 208395fab37eSRobert Watson 208495fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 208595fab37eSRobert Watson if (error) 208695fab37eSRobert Watson return (error); 208795fab37eSRobert Watson 208895fab37eSRobert Watson MAC_CHECK(check_vnode_setutimes, cred, vp, &vp->v_label, atime, 208995fab37eSRobert Watson mtime); 209095fab37eSRobert Watson return (error); 209195fab37eSRobert Watson } 209295fab37eSRobert Watson 209395fab37eSRobert Watson int 2094177142e4SRobert Watson mac_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 2095177142e4SRobert Watson struct vnode *vp) 209695fab37eSRobert Watson { 209795fab37eSRobert Watson int error; 209895fab37eSRobert Watson 209995fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_stat"); 210095fab37eSRobert Watson 210195fab37eSRobert Watson if (!mac_enforce_fs) 210295fab37eSRobert Watson return (0); 210395fab37eSRobert Watson 2104177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 210595fab37eSRobert Watson if (error) 210695fab37eSRobert Watson return (error); 210795fab37eSRobert Watson 2108177142e4SRobert Watson MAC_CHECK(check_vnode_stat, active_cred, file_cred, vp, 2109177142e4SRobert Watson &vp->v_label); 211095fab37eSRobert Watson return (error); 211195fab37eSRobert Watson } 211295fab37eSRobert Watson 21137f724f8bSRobert Watson int 2114177142e4SRobert Watson mac_check_vnode_write(struct ucred *active_cred, struct ucred *file_cred, 2115177142e4SRobert Watson struct vnode *vp) 21167f724f8bSRobert Watson { 21177f724f8bSRobert Watson int error; 21187f724f8bSRobert Watson 21197f724f8bSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_write"); 21207f724f8bSRobert Watson 21217f724f8bSRobert Watson if (!mac_enforce_fs) 21227f724f8bSRobert Watson return (0); 21237f724f8bSRobert Watson 2124177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 21257f724f8bSRobert Watson if (error) 21267f724f8bSRobert Watson return (error); 21277f724f8bSRobert Watson 2128177142e4SRobert Watson MAC_CHECK(check_vnode_write, active_cred, file_cred, vp, 2129177142e4SRobert Watson &vp->v_label); 21307f724f8bSRobert Watson 21317f724f8bSRobert Watson return (error); 21327f724f8bSRobert Watson } 21337f724f8bSRobert Watson 213495fab37eSRobert Watson /* 213595fab37eSRobert Watson * When relabeling a process, call out to the policies for the maximum 213695fab37eSRobert Watson * permission allowed for each object type we know about in its 213795fab37eSRobert Watson * memory space, and revoke access (in the least surprising ways we 213895fab37eSRobert Watson * know) when necessary. The process lock is not held here. 213995fab37eSRobert Watson */ 214095fab37eSRobert Watson static void 214195fab37eSRobert Watson mac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred) 214295fab37eSRobert Watson { 214395fab37eSRobert Watson 214495fab37eSRobert Watson /* XXX freeze all other threads */ 214595fab37eSRobert Watson mac_cred_mmapped_drop_perms_recurse(td, cred, 214695fab37eSRobert Watson &td->td_proc->p_vmspace->vm_map); 214795fab37eSRobert Watson /* XXX allow other threads to continue */ 214895fab37eSRobert Watson } 214995fab37eSRobert Watson 215095fab37eSRobert Watson static __inline const char * 215195fab37eSRobert Watson prot2str(vm_prot_t prot) 215295fab37eSRobert Watson { 215395fab37eSRobert Watson 215495fab37eSRobert Watson switch (prot & VM_PROT_ALL) { 215595fab37eSRobert Watson case VM_PROT_READ: 215695fab37eSRobert Watson return ("r--"); 215795fab37eSRobert Watson case VM_PROT_READ | VM_PROT_WRITE: 215895fab37eSRobert Watson return ("rw-"); 215995fab37eSRobert Watson case VM_PROT_READ | VM_PROT_EXECUTE: 216095fab37eSRobert Watson return ("r-x"); 216195fab37eSRobert Watson case VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE: 216295fab37eSRobert Watson return ("rwx"); 216395fab37eSRobert Watson case VM_PROT_WRITE: 216495fab37eSRobert Watson return ("-w-"); 216595fab37eSRobert Watson case VM_PROT_EXECUTE: 216695fab37eSRobert Watson return ("--x"); 216795fab37eSRobert Watson case VM_PROT_WRITE | VM_PROT_EXECUTE: 216895fab37eSRobert Watson return ("-wx"); 216995fab37eSRobert Watson default: 217095fab37eSRobert Watson return ("---"); 217195fab37eSRobert Watson } 217295fab37eSRobert Watson } 217395fab37eSRobert Watson 217495fab37eSRobert Watson static void 217595fab37eSRobert Watson mac_cred_mmapped_drop_perms_recurse(struct thread *td, struct ucred *cred, 217695fab37eSRobert Watson struct vm_map *map) 217795fab37eSRobert Watson { 217895fab37eSRobert Watson struct vm_map_entry *vme; 217995fab37eSRobert Watson vm_prot_t result, revokeperms; 218095fab37eSRobert Watson vm_object_t object; 218195fab37eSRobert Watson vm_ooffset_t offset; 218295fab37eSRobert Watson struct vnode *vp; 218395fab37eSRobert Watson 2184c0f39905SRobert Watson if (!mac_mmap_revocation) 2185c0f39905SRobert Watson return; 2186c0f39905SRobert Watson 218795fab37eSRobert Watson vm_map_lock_read(map); 218895fab37eSRobert Watson for (vme = map->header.next; vme != &map->header; vme = vme->next) { 218995fab37eSRobert Watson if (vme->eflags & MAP_ENTRY_IS_SUB_MAP) { 219095fab37eSRobert Watson mac_cred_mmapped_drop_perms_recurse(td, cred, 219195fab37eSRobert Watson vme->object.sub_map); 219295fab37eSRobert Watson continue; 219395fab37eSRobert Watson } 219495fab37eSRobert Watson /* 219595fab37eSRobert Watson * Skip over entries that obviously are not shared. 219695fab37eSRobert Watson */ 219795fab37eSRobert Watson if (vme->eflags & (MAP_ENTRY_COW | MAP_ENTRY_NOSYNC) || 219895fab37eSRobert Watson !vme->max_protection) 219995fab37eSRobert Watson continue; 220095fab37eSRobert Watson /* 220195fab37eSRobert Watson * Drill down to the deepest backing object. 220295fab37eSRobert Watson */ 220395fab37eSRobert Watson offset = vme->offset; 220495fab37eSRobert Watson object = vme->object.vm_object; 220595fab37eSRobert Watson if (object == NULL) 220695fab37eSRobert Watson continue; 220795fab37eSRobert Watson while (object->backing_object != NULL) { 220895fab37eSRobert Watson object = object->backing_object; 220995fab37eSRobert Watson offset += object->backing_object_offset; 221095fab37eSRobert Watson } 221195fab37eSRobert Watson /* 221295fab37eSRobert Watson * At the moment, vm_maps and objects aren't considered 221395fab37eSRobert Watson * by the MAC system, so only things with backing by a 221495fab37eSRobert Watson * normal object (read: vnodes) are checked. 221595fab37eSRobert Watson */ 221695fab37eSRobert Watson if (object->type != OBJT_VNODE) 221795fab37eSRobert Watson continue; 221895fab37eSRobert Watson vp = (struct vnode *)object->handle; 221995fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 222095fab37eSRobert Watson result = mac_check_vnode_mmap_prot(cred, vp, 0); 222195fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 222295fab37eSRobert Watson /* 222395fab37eSRobert Watson * Find out what maximum protection we may be allowing 222495fab37eSRobert Watson * now but a policy needs to get removed. 222595fab37eSRobert Watson */ 222695fab37eSRobert Watson revokeperms = vme->max_protection & ~result; 222795fab37eSRobert Watson if (!revokeperms) 222895fab37eSRobert Watson continue; 2229b656366bSBruce Evans printf("pid %ld: revoking %s perms from %#lx:%ld " 2230b656366bSBruce Evans "(max %s/cur %s)\n", (long)td->td_proc->p_pid, 2231b656366bSBruce Evans prot2str(revokeperms), (u_long)vme->start, 2232b656366bSBruce Evans (long)(vme->end - vme->start), 223395fab37eSRobert Watson prot2str(vme->max_protection), prot2str(vme->protection)); 223495fab37eSRobert Watson vm_map_lock_upgrade(map); 223595fab37eSRobert Watson /* 223695fab37eSRobert Watson * This is the really simple case: if a map has more 223795fab37eSRobert Watson * max_protection than is allowed, but it's not being 223895fab37eSRobert Watson * actually used (that is, the current protection is 223995fab37eSRobert Watson * still allowed), we can just wipe it out and do 224095fab37eSRobert Watson * nothing more. 224195fab37eSRobert Watson */ 224295fab37eSRobert Watson if ((vme->protection & revokeperms) == 0) { 224395fab37eSRobert Watson vme->max_protection -= revokeperms; 224495fab37eSRobert Watson } else { 224595fab37eSRobert Watson if (revokeperms & VM_PROT_WRITE) { 224695fab37eSRobert Watson /* 224795fab37eSRobert Watson * In the more complicated case, flush out all 224895fab37eSRobert Watson * pending changes to the object then turn it 224995fab37eSRobert Watson * copy-on-write. 225095fab37eSRobert Watson */ 225195fab37eSRobert Watson vm_object_reference(object); 225295fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 225395fab37eSRobert Watson vm_object_page_clean(object, 225495fab37eSRobert Watson OFF_TO_IDX(offset), 225595fab37eSRobert Watson OFF_TO_IDX(offset + vme->end - vme->start + 225695fab37eSRobert Watson PAGE_MASK), 225795fab37eSRobert Watson OBJPC_SYNC); 225895fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 225995fab37eSRobert Watson vm_object_deallocate(object); 226095fab37eSRobert Watson /* 226195fab37eSRobert Watson * Why bother if there's no read permissions 226295fab37eSRobert Watson * anymore? For the rest, we need to leave 226395fab37eSRobert Watson * the write permissions on for COW, or 226495fab37eSRobert Watson * remove them entirely if configured to. 226595fab37eSRobert Watson */ 226695fab37eSRobert Watson if (!mac_mmap_revocation_via_cow) { 226795fab37eSRobert Watson vme->max_protection &= ~VM_PROT_WRITE; 226895fab37eSRobert Watson vme->protection &= ~VM_PROT_WRITE; 226995fab37eSRobert Watson } if ((revokeperms & VM_PROT_READ) == 0) 227095fab37eSRobert Watson vme->eflags |= MAP_ENTRY_COW | 227195fab37eSRobert Watson MAP_ENTRY_NEEDS_COPY; 227295fab37eSRobert Watson } 227395fab37eSRobert Watson if (revokeperms & VM_PROT_EXECUTE) { 227495fab37eSRobert Watson vme->max_protection &= ~VM_PROT_EXECUTE; 227595fab37eSRobert Watson vme->protection &= ~VM_PROT_EXECUTE; 227695fab37eSRobert Watson } 227795fab37eSRobert Watson if (revokeperms & VM_PROT_READ) { 227895fab37eSRobert Watson vme->max_protection = 0; 227995fab37eSRobert Watson vme->protection = 0; 228095fab37eSRobert Watson } 228195fab37eSRobert Watson pmap_protect(map->pmap, vme->start, vme->end, 228295fab37eSRobert Watson vme->protection & ~revokeperms); 228395fab37eSRobert Watson vm_map_simplify_entry(map, vme); 228495fab37eSRobert Watson } 228595fab37eSRobert Watson vm_map_lock_downgrade(map); 228695fab37eSRobert Watson } 228795fab37eSRobert Watson vm_map_unlock_read(map); 228895fab37eSRobert Watson } 228995fab37eSRobert Watson 229095fab37eSRobert Watson /* 229195fab37eSRobert Watson * When the subject's label changes, it may require revocation of privilege 229295fab37eSRobert Watson * to mapped objects. This can't be done on-the-fly later with a unified 229395fab37eSRobert Watson * buffer cache. 229495fab37eSRobert Watson */ 229595fab37eSRobert Watson static void 229695fab37eSRobert Watson mac_relabel_cred(struct ucred *cred, struct label *newlabel) 229795fab37eSRobert Watson { 229895fab37eSRobert Watson 229995fab37eSRobert Watson MAC_PERFORM(relabel_cred, cred, newlabel); 230095fab37eSRobert Watson } 230195fab37eSRobert Watson 230295fab37eSRobert Watson void 230395fab37eSRobert Watson mac_relabel_vnode(struct ucred *cred, struct vnode *vp, struct label *newlabel) 230495fab37eSRobert Watson { 230595fab37eSRobert Watson 230695fab37eSRobert Watson MAC_PERFORM(relabel_vnode, cred, vp, &vp->v_label, newlabel); 230795fab37eSRobert Watson } 230895fab37eSRobert Watson 230995fab37eSRobert Watson void 231095fab37eSRobert Watson mac_create_ifnet(struct ifnet *ifnet) 231195fab37eSRobert Watson { 231295fab37eSRobert Watson 231395fab37eSRobert Watson MAC_PERFORM(create_ifnet, ifnet, &ifnet->if_label); 231495fab37eSRobert Watson } 231595fab37eSRobert Watson 231695fab37eSRobert Watson void 231795fab37eSRobert Watson mac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d) 231895fab37eSRobert Watson { 231995fab37eSRobert Watson 232095fab37eSRobert Watson MAC_PERFORM(create_bpfdesc, cred, bpf_d, &bpf_d->bd_label); 232195fab37eSRobert Watson } 232295fab37eSRobert Watson 232395fab37eSRobert Watson void 232495fab37eSRobert Watson mac_create_socket(struct ucred *cred, struct socket *socket) 232595fab37eSRobert Watson { 232695fab37eSRobert Watson 232795fab37eSRobert Watson MAC_PERFORM(create_socket, cred, socket, &socket->so_label); 232895fab37eSRobert Watson } 232995fab37eSRobert Watson 233095fab37eSRobert Watson void 233195fab37eSRobert Watson mac_create_pipe(struct ucred *cred, struct pipe *pipe) 233295fab37eSRobert Watson { 233395fab37eSRobert Watson 233495fab37eSRobert Watson MAC_PERFORM(create_pipe, cred, pipe, pipe->pipe_label); 233595fab37eSRobert Watson } 233695fab37eSRobert Watson 233795fab37eSRobert Watson void 233895fab37eSRobert Watson mac_create_socket_from_socket(struct socket *oldsocket, 233995fab37eSRobert Watson struct socket *newsocket) 234095fab37eSRobert Watson { 234195fab37eSRobert Watson 234295fab37eSRobert Watson MAC_PERFORM(create_socket_from_socket, oldsocket, &oldsocket->so_label, 234395fab37eSRobert Watson newsocket, &newsocket->so_label); 234495fab37eSRobert Watson } 234595fab37eSRobert Watson 234695fab37eSRobert Watson static void 234795fab37eSRobert Watson mac_relabel_socket(struct ucred *cred, struct socket *socket, 234895fab37eSRobert Watson struct label *newlabel) 234995fab37eSRobert Watson { 235095fab37eSRobert Watson 235195fab37eSRobert Watson MAC_PERFORM(relabel_socket, cred, socket, &socket->so_label, newlabel); 235295fab37eSRobert Watson } 235395fab37eSRobert Watson 235495fab37eSRobert Watson static void 235595fab37eSRobert Watson mac_relabel_pipe(struct ucred *cred, struct pipe *pipe, struct label *newlabel) 235695fab37eSRobert Watson { 235795fab37eSRobert Watson 235895fab37eSRobert Watson MAC_PERFORM(relabel_pipe, cred, pipe, pipe->pipe_label, newlabel); 235995fab37eSRobert Watson } 236095fab37eSRobert Watson 236195fab37eSRobert Watson void 236295fab37eSRobert Watson mac_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct socket *socket) 236395fab37eSRobert Watson { 236495fab37eSRobert Watson 236595fab37eSRobert Watson MAC_PERFORM(set_socket_peer_from_mbuf, mbuf, &mbuf->m_pkthdr.label, 236695fab37eSRobert Watson socket, &socket->so_peerlabel); 236795fab37eSRobert Watson } 236895fab37eSRobert Watson 236995fab37eSRobert Watson void 237095fab37eSRobert Watson mac_set_socket_peer_from_socket(struct socket *oldsocket, 237195fab37eSRobert Watson struct socket *newsocket) 237295fab37eSRobert Watson { 237395fab37eSRobert Watson 237495fab37eSRobert Watson MAC_PERFORM(set_socket_peer_from_socket, oldsocket, 237595fab37eSRobert Watson &oldsocket->so_label, newsocket, &newsocket->so_peerlabel); 237695fab37eSRobert Watson } 237795fab37eSRobert Watson 237895fab37eSRobert Watson void 237995fab37eSRobert Watson mac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram) 238095fab37eSRobert Watson { 238195fab37eSRobert Watson 238295fab37eSRobert Watson MAC_PERFORM(create_datagram_from_ipq, ipq, &ipq->ipq_label, 238395fab37eSRobert Watson datagram, &datagram->m_pkthdr.label); 238495fab37eSRobert Watson } 238595fab37eSRobert Watson 238695fab37eSRobert Watson void 238795fab37eSRobert Watson mac_create_fragment(struct mbuf *datagram, struct mbuf *fragment) 238895fab37eSRobert Watson { 238995fab37eSRobert Watson 239095fab37eSRobert Watson MAC_PERFORM(create_fragment, datagram, &datagram->m_pkthdr.label, 239195fab37eSRobert Watson fragment, &fragment->m_pkthdr.label); 239295fab37eSRobert Watson } 239395fab37eSRobert Watson 239495fab37eSRobert Watson void 239595fab37eSRobert Watson mac_create_ipq(struct mbuf *fragment, struct ipq *ipq) 239695fab37eSRobert Watson { 239795fab37eSRobert Watson 239895fab37eSRobert Watson MAC_PERFORM(create_ipq, fragment, &fragment->m_pkthdr.label, ipq, 239995fab37eSRobert Watson &ipq->ipq_label); 240095fab37eSRobert Watson } 240195fab37eSRobert Watson 240295fab37eSRobert Watson void 240395fab37eSRobert Watson mac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf) 240495fab37eSRobert Watson { 240595fab37eSRobert Watson 240695fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_mbuf, oldmbuf, &oldmbuf->m_pkthdr.label, 240795fab37eSRobert Watson newmbuf, &newmbuf->m_pkthdr.label); 240895fab37eSRobert Watson } 240995fab37eSRobert Watson 241095fab37eSRobert Watson void 241195fab37eSRobert Watson mac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *mbuf) 241295fab37eSRobert Watson { 241395fab37eSRobert Watson 241495fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_bpfdesc, bpf_d, &bpf_d->bd_label, mbuf, 241595fab37eSRobert Watson &mbuf->m_pkthdr.label); 241695fab37eSRobert Watson } 241795fab37eSRobert Watson 241895fab37eSRobert Watson void 241995fab37eSRobert Watson mac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *mbuf) 242095fab37eSRobert Watson { 242195fab37eSRobert Watson 242295fab37eSRobert Watson MAC_PERFORM(create_mbuf_linklayer, ifnet, &ifnet->if_label, mbuf, 242395fab37eSRobert Watson &mbuf->m_pkthdr.label); 242495fab37eSRobert Watson } 242595fab37eSRobert Watson 242695fab37eSRobert Watson void 242795fab37eSRobert Watson mac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *mbuf) 242895fab37eSRobert Watson { 242995fab37eSRobert Watson 243095fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_ifnet, ifnet, &ifnet->if_label, mbuf, 243195fab37eSRobert Watson &mbuf->m_pkthdr.label); 243295fab37eSRobert Watson } 243395fab37eSRobert Watson 243495fab37eSRobert Watson void 243595fab37eSRobert Watson mac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, struct ifnet *ifnet, 243695fab37eSRobert Watson struct mbuf *newmbuf) 243795fab37eSRobert Watson { 243895fab37eSRobert Watson 243995fab37eSRobert Watson MAC_PERFORM(create_mbuf_multicast_encap, oldmbuf, 244095fab37eSRobert Watson &oldmbuf->m_pkthdr.label, ifnet, &ifnet->if_label, newmbuf, 244195fab37eSRobert Watson &newmbuf->m_pkthdr.label); 244295fab37eSRobert Watson } 244395fab37eSRobert Watson 244495fab37eSRobert Watson void 244595fab37eSRobert Watson mac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf) 244695fab37eSRobert Watson { 244795fab37eSRobert Watson 244895fab37eSRobert Watson MAC_PERFORM(create_mbuf_netlayer, oldmbuf, &oldmbuf->m_pkthdr.label, 244995fab37eSRobert Watson newmbuf, &newmbuf->m_pkthdr.label); 245095fab37eSRobert Watson } 245195fab37eSRobert Watson 245295fab37eSRobert Watson int 245395fab37eSRobert Watson mac_fragment_match(struct mbuf *fragment, struct ipq *ipq) 245495fab37eSRobert Watson { 245595fab37eSRobert Watson int result; 245695fab37eSRobert Watson 245795fab37eSRobert Watson result = 1; 245895fab37eSRobert Watson MAC_BOOLEAN(fragment_match, &&, fragment, &fragment->m_pkthdr.label, 245995fab37eSRobert Watson ipq, &ipq->ipq_label); 246095fab37eSRobert Watson 246195fab37eSRobert Watson return (result); 246295fab37eSRobert Watson } 246395fab37eSRobert Watson 246495fab37eSRobert Watson void 246595fab37eSRobert Watson mac_update_ipq(struct mbuf *fragment, struct ipq *ipq) 246695fab37eSRobert Watson { 246795fab37eSRobert Watson 246895fab37eSRobert Watson MAC_PERFORM(update_ipq, fragment, &fragment->m_pkthdr.label, ipq, 246995fab37eSRobert Watson &ipq->ipq_label); 247095fab37eSRobert Watson } 247195fab37eSRobert Watson 247295fab37eSRobert Watson void 247395fab37eSRobert Watson mac_create_mbuf_from_socket(struct socket *socket, struct mbuf *mbuf) 247495fab37eSRobert Watson { 247595fab37eSRobert Watson 247695fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_socket, socket, &socket->so_label, mbuf, 247795fab37eSRobert Watson &mbuf->m_pkthdr.label); 247895fab37eSRobert Watson } 247995fab37eSRobert Watson 248095fab37eSRobert Watson void 248195fab37eSRobert Watson mac_create_mount(struct ucred *cred, struct mount *mp) 248295fab37eSRobert Watson { 248395fab37eSRobert Watson 248495fab37eSRobert Watson MAC_PERFORM(create_mount, cred, mp, &mp->mnt_mntlabel, 248595fab37eSRobert Watson &mp->mnt_fslabel); 248695fab37eSRobert Watson } 248795fab37eSRobert Watson 248895fab37eSRobert Watson void 248995fab37eSRobert Watson mac_create_root_mount(struct ucred *cred, struct mount *mp) 249095fab37eSRobert Watson { 249195fab37eSRobert Watson 249295fab37eSRobert Watson MAC_PERFORM(create_root_mount, cred, mp, &mp->mnt_mntlabel, 249395fab37eSRobert Watson &mp->mnt_fslabel); 249495fab37eSRobert Watson } 249595fab37eSRobert Watson 249695fab37eSRobert Watson int 249795fab37eSRobert Watson mac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet) 249895fab37eSRobert Watson { 249995fab37eSRobert Watson int error; 250095fab37eSRobert Watson 250195fab37eSRobert Watson if (!mac_enforce_network) 250295fab37eSRobert Watson return (0); 250395fab37eSRobert Watson 250495fab37eSRobert Watson MAC_CHECK(check_bpfdesc_receive, bpf_d, &bpf_d->bd_label, ifnet, 250595fab37eSRobert Watson &ifnet->if_label); 250695fab37eSRobert Watson 250795fab37eSRobert Watson return (error); 250895fab37eSRobert Watson } 250995fab37eSRobert Watson 251095fab37eSRobert Watson static int 251195fab37eSRobert Watson mac_check_cred_relabel(struct ucred *cred, struct label *newlabel) 251295fab37eSRobert Watson { 251395fab37eSRobert Watson int error; 251495fab37eSRobert Watson 251595fab37eSRobert Watson MAC_CHECK(check_cred_relabel, cred, newlabel); 251695fab37eSRobert Watson 251795fab37eSRobert Watson return (error); 251895fab37eSRobert Watson } 251995fab37eSRobert Watson 252095fab37eSRobert Watson int 252195fab37eSRobert Watson mac_check_cred_visible(struct ucred *u1, struct ucred *u2) 252295fab37eSRobert Watson { 252395fab37eSRobert Watson int error; 252495fab37eSRobert Watson 252595fab37eSRobert Watson if (!mac_enforce_process) 252695fab37eSRobert Watson return (0); 252795fab37eSRobert Watson 252895fab37eSRobert Watson MAC_CHECK(check_cred_visible, u1, u2); 252995fab37eSRobert Watson 253095fab37eSRobert Watson return (error); 253195fab37eSRobert Watson } 253295fab37eSRobert Watson 253395fab37eSRobert Watson int 253495fab37eSRobert Watson mac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *mbuf) 253595fab37eSRobert Watson { 253695fab37eSRobert Watson int error; 253795fab37eSRobert Watson 253895fab37eSRobert Watson if (!mac_enforce_network) 253995fab37eSRobert Watson return (0); 254095fab37eSRobert Watson 254195fab37eSRobert Watson KASSERT(mbuf->m_flags & M_PKTHDR, ("packet has no pkthdr")); 254295fab37eSRobert Watson if (!(mbuf->m_pkthdr.label.l_flags & MAC_FLAG_INITIALIZED)) 254395fab37eSRobert Watson printf("%s%d: not initialized\n", ifnet->if_name, 254495fab37eSRobert Watson ifnet->if_unit); 254595fab37eSRobert Watson 254695fab37eSRobert Watson MAC_CHECK(check_ifnet_transmit, ifnet, &ifnet->if_label, mbuf, 254795fab37eSRobert Watson &mbuf->m_pkthdr.label); 254895fab37eSRobert Watson 254995fab37eSRobert Watson return (error); 255095fab37eSRobert Watson } 255195fab37eSRobert Watson 255295fab37eSRobert Watson int 255395fab37eSRobert Watson mac_check_mount_stat(struct ucred *cred, struct mount *mount) 255495fab37eSRobert Watson { 255595fab37eSRobert Watson int error; 255695fab37eSRobert Watson 255795fab37eSRobert Watson if (!mac_enforce_fs) 255895fab37eSRobert Watson return (0); 255995fab37eSRobert Watson 256095fab37eSRobert Watson MAC_CHECK(check_mount_stat, cred, mount, &mount->mnt_mntlabel); 256195fab37eSRobert Watson 256295fab37eSRobert Watson return (error); 256395fab37eSRobert Watson } 256495fab37eSRobert Watson 256595fab37eSRobert Watson int 256695fab37eSRobert Watson mac_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe, unsigned long cmd, 256795fab37eSRobert Watson void *data) 256895fab37eSRobert Watson { 256995fab37eSRobert Watson int error; 257095fab37eSRobert Watson 257195fab37eSRobert Watson MAC_CHECK(check_pipe_ioctl, cred, pipe, pipe->pipe_label, cmd, data); 257295fab37eSRobert Watson 257395fab37eSRobert Watson return (error); 257495fab37eSRobert Watson } 257595fab37eSRobert Watson 257695fab37eSRobert Watson int 2577c024c3eeSRobert Watson mac_check_pipe_poll(struct ucred *cred, struct pipe *pipe) 257895fab37eSRobert Watson { 257995fab37eSRobert Watson int error; 258095fab37eSRobert Watson 2581c024c3eeSRobert Watson MAC_CHECK(check_pipe_poll, cred, pipe, pipe->pipe_label); 2582c024c3eeSRobert Watson 2583c024c3eeSRobert Watson return (error); 2584c024c3eeSRobert Watson } 2585c024c3eeSRobert Watson 2586c024c3eeSRobert Watson int 2587c024c3eeSRobert Watson mac_check_pipe_read(struct ucred *cred, struct pipe *pipe) 2588c024c3eeSRobert Watson { 2589c024c3eeSRobert Watson int error; 2590c024c3eeSRobert Watson 2591c024c3eeSRobert Watson MAC_CHECK(check_pipe_read, cred, pipe, pipe->pipe_label); 259295fab37eSRobert Watson 259395fab37eSRobert Watson return (error); 259495fab37eSRobert Watson } 259595fab37eSRobert Watson 259695fab37eSRobert Watson static int 259795fab37eSRobert Watson mac_check_pipe_relabel(struct ucred *cred, struct pipe *pipe, 259895fab37eSRobert Watson struct label *newlabel) 259995fab37eSRobert Watson { 260095fab37eSRobert Watson int error; 260195fab37eSRobert Watson 260295fab37eSRobert Watson MAC_CHECK(check_pipe_relabel, cred, pipe, pipe->pipe_label, newlabel); 260395fab37eSRobert Watson 260495fab37eSRobert Watson return (error); 260595fab37eSRobert Watson } 260695fab37eSRobert Watson 260795fab37eSRobert Watson int 2608c024c3eeSRobert Watson mac_check_pipe_stat(struct ucred *cred, struct pipe *pipe) 2609c024c3eeSRobert Watson { 2610c024c3eeSRobert Watson int error; 2611c024c3eeSRobert Watson 2612c024c3eeSRobert Watson MAC_CHECK(check_pipe_stat, cred, pipe, pipe->pipe_label); 2613c024c3eeSRobert Watson 2614c024c3eeSRobert Watson return (error); 2615c024c3eeSRobert Watson } 2616c024c3eeSRobert Watson 2617c024c3eeSRobert Watson int 2618c024c3eeSRobert Watson mac_check_pipe_write(struct ucred *cred, struct pipe *pipe) 2619c024c3eeSRobert Watson { 2620c024c3eeSRobert Watson int error; 2621c024c3eeSRobert Watson 2622c024c3eeSRobert Watson MAC_CHECK(check_pipe_write, cred, pipe, pipe->pipe_label); 2623c024c3eeSRobert Watson 2624c024c3eeSRobert Watson return (error); 2625c024c3eeSRobert Watson } 2626c024c3eeSRobert Watson 2627c024c3eeSRobert Watson int 262895fab37eSRobert Watson mac_check_proc_debug(struct ucred *cred, struct proc *proc) 262995fab37eSRobert Watson { 263095fab37eSRobert Watson int error; 263195fab37eSRobert Watson 2632b12baf55SRobert Watson PROC_LOCK_ASSERT(proc, MA_OWNED); 2633b12baf55SRobert Watson 263495fab37eSRobert Watson if (!mac_enforce_process) 263595fab37eSRobert Watson return (0); 263695fab37eSRobert Watson 263795fab37eSRobert Watson MAC_CHECK(check_proc_debug, cred, proc); 263895fab37eSRobert Watson 263995fab37eSRobert Watson return (error); 264095fab37eSRobert Watson } 264195fab37eSRobert Watson 264295fab37eSRobert Watson int 264395fab37eSRobert Watson mac_check_proc_sched(struct ucred *cred, struct proc *proc) 264495fab37eSRobert Watson { 264595fab37eSRobert Watson int error; 264695fab37eSRobert Watson 2647b12baf55SRobert Watson PROC_LOCK_ASSERT(proc, MA_OWNED); 2648b12baf55SRobert Watson 264995fab37eSRobert Watson if (!mac_enforce_process) 265095fab37eSRobert Watson return (0); 265195fab37eSRobert Watson 265295fab37eSRobert Watson MAC_CHECK(check_proc_sched, cred, proc); 265395fab37eSRobert Watson 265495fab37eSRobert Watson return (error); 265595fab37eSRobert Watson } 265695fab37eSRobert Watson 265795fab37eSRobert Watson int 265895fab37eSRobert Watson mac_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 265995fab37eSRobert Watson { 266095fab37eSRobert Watson int error; 266195fab37eSRobert Watson 2662b12baf55SRobert Watson PROC_LOCK_ASSERT(proc, MA_OWNED); 2663b12baf55SRobert Watson 266495fab37eSRobert Watson if (!mac_enforce_process) 266595fab37eSRobert Watson return (0); 266695fab37eSRobert Watson 266795fab37eSRobert Watson MAC_CHECK(check_proc_signal, cred, proc, signum); 266895fab37eSRobert Watson 266995fab37eSRobert Watson return (error); 267095fab37eSRobert Watson } 267195fab37eSRobert Watson 267295fab37eSRobert Watson int 267395fab37eSRobert Watson mac_check_socket_bind(struct ucred *ucred, struct socket *socket, 267495fab37eSRobert Watson struct sockaddr *sockaddr) 267595fab37eSRobert Watson { 267695fab37eSRobert Watson int error; 267795fab37eSRobert Watson 267895fab37eSRobert Watson if (!mac_enforce_socket) 267995fab37eSRobert Watson return (0); 268095fab37eSRobert Watson 268195fab37eSRobert Watson MAC_CHECK(check_socket_bind, ucred, socket, &socket->so_label, 268295fab37eSRobert Watson sockaddr); 268395fab37eSRobert Watson 268495fab37eSRobert Watson return (error); 268595fab37eSRobert Watson } 268695fab37eSRobert Watson 268795fab37eSRobert Watson int 268895fab37eSRobert Watson mac_check_socket_connect(struct ucred *cred, struct socket *socket, 268995fab37eSRobert Watson struct sockaddr *sockaddr) 269095fab37eSRobert Watson { 269195fab37eSRobert Watson int error; 269295fab37eSRobert Watson 269395fab37eSRobert Watson if (!mac_enforce_socket) 269495fab37eSRobert Watson return (0); 269595fab37eSRobert Watson 269695fab37eSRobert Watson MAC_CHECK(check_socket_connect, cred, socket, &socket->so_label, 269795fab37eSRobert Watson sockaddr); 269895fab37eSRobert Watson 269995fab37eSRobert Watson return (error); 270095fab37eSRobert Watson } 270195fab37eSRobert Watson 270295fab37eSRobert Watson int 2703d61198e4SRobert Watson mac_check_socket_deliver(struct socket *socket, struct mbuf *mbuf) 2704d61198e4SRobert Watson { 2705d61198e4SRobert Watson int error; 2706d61198e4SRobert Watson 2707d61198e4SRobert Watson if (!mac_enforce_socket) 2708d61198e4SRobert Watson return (0); 2709d61198e4SRobert Watson 2710d61198e4SRobert Watson MAC_CHECK(check_socket_deliver, socket, &socket->so_label, mbuf, 2711d61198e4SRobert Watson &mbuf->m_pkthdr.label); 2712d61198e4SRobert Watson 2713d61198e4SRobert Watson return (error); 2714d61198e4SRobert Watson } 2715d61198e4SRobert Watson 2716d61198e4SRobert Watson int 271795fab37eSRobert Watson mac_check_socket_listen(struct ucred *cred, struct socket *socket) 271895fab37eSRobert Watson { 271995fab37eSRobert Watson int error; 272095fab37eSRobert Watson 272195fab37eSRobert Watson if (!mac_enforce_socket) 272295fab37eSRobert Watson return (0); 272395fab37eSRobert Watson 272495fab37eSRobert Watson MAC_CHECK(check_socket_listen, cred, socket, &socket->so_label); 272595fab37eSRobert Watson return (error); 272695fab37eSRobert Watson } 272795fab37eSRobert Watson 272895fab37eSRobert Watson static int 272995fab37eSRobert Watson mac_check_socket_relabel(struct ucred *cred, struct socket *socket, 273095fab37eSRobert Watson struct label *newlabel) 273195fab37eSRobert Watson { 273295fab37eSRobert Watson int error; 273395fab37eSRobert Watson 273495fab37eSRobert Watson MAC_CHECK(check_socket_relabel, cred, socket, &socket->so_label, 273595fab37eSRobert Watson newlabel); 273695fab37eSRobert Watson 273795fab37eSRobert Watson return (error); 273895fab37eSRobert Watson } 273995fab37eSRobert Watson 274095fab37eSRobert Watson int 274195fab37eSRobert Watson mac_check_socket_visible(struct ucred *cred, struct socket *socket) 274295fab37eSRobert Watson { 274395fab37eSRobert Watson int error; 274495fab37eSRobert Watson 274595fab37eSRobert Watson if (!mac_enforce_socket) 274695fab37eSRobert Watson return (0); 274795fab37eSRobert Watson 274895fab37eSRobert Watson MAC_CHECK(check_socket_visible, cred, socket, &socket->so_label); 274995fab37eSRobert Watson 275095fab37eSRobert Watson return (error); 275195fab37eSRobert Watson } 275295fab37eSRobert Watson 275395fab37eSRobert Watson int 275495fab37eSRobert Watson mac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, 275595fab37eSRobert Watson struct ifnet *ifnet) 275695fab37eSRobert Watson { 275795fab37eSRobert Watson struct mac label; 275895fab37eSRobert Watson int error; 275995fab37eSRobert Watson 276095fab37eSRobert Watson error = mac_externalize(&ifnet->if_label, &label); 276195fab37eSRobert Watson if (error) 276295fab37eSRobert Watson return (error); 276395fab37eSRobert Watson 276495fab37eSRobert Watson return (copyout(&label, ifr->ifr_ifru.ifru_data, sizeof(label))); 276595fab37eSRobert Watson } 276695fab37eSRobert Watson 276795fab37eSRobert Watson int 276895fab37eSRobert Watson mac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, 276995fab37eSRobert Watson struct ifnet *ifnet) 277095fab37eSRobert Watson { 277195fab37eSRobert Watson struct mac newlabel; 277295fab37eSRobert Watson struct label intlabel; 277395fab37eSRobert Watson int error; 277495fab37eSRobert Watson 277595fab37eSRobert Watson error = copyin(ifr->ifr_ifru.ifru_data, &newlabel, sizeof(newlabel)); 277695fab37eSRobert Watson if (error) 277795fab37eSRobert Watson return (error); 277895fab37eSRobert Watson 277995fab37eSRobert Watson error = mac_internalize(&intlabel, &newlabel); 278095fab37eSRobert Watson if (error) 278195fab37eSRobert Watson return (error); 278295fab37eSRobert Watson 278395fab37eSRobert Watson /* 278495fab37eSRobert Watson * XXX: Note that this is a redundant privilege check, since 278595fab37eSRobert Watson * policies impose this check themselves if required by the 278695fab37eSRobert Watson * policy. Eventually, this should go away. 278795fab37eSRobert Watson */ 278895fab37eSRobert Watson error = suser_cred(cred, 0); 278995fab37eSRobert Watson if (error) 279095fab37eSRobert Watson goto out; 279195fab37eSRobert Watson 279295fab37eSRobert Watson MAC_CHECK(check_ifnet_relabel, cred, ifnet, &ifnet->if_label, 279395fab37eSRobert Watson &intlabel); 279495fab37eSRobert Watson if (error) 279595fab37eSRobert Watson goto out; 279695fab37eSRobert Watson 279795fab37eSRobert Watson MAC_PERFORM(relabel_ifnet, cred, ifnet, &ifnet->if_label, &intlabel); 279895fab37eSRobert Watson 279995fab37eSRobert Watson out: 280095fab37eSRobert Watson mac_destroy_temp(&intlabel); 280195fab37eSRobert Watson return (error); 280295fab37eSRobert Watson } 280395fab37eSRobert Watson 280495fab37eSRobert Watson void 280595fab37eSRobert Watson mac_create_devfs_vnode(struct devfs_dirent *de, struct vnode *vp) 280695fab37eSRobert Watson { 280795fab37eSRobert Watson 280895fab37eSRobert Watson MAC_PERFORM(create_devfs_vnode, de, &de->de_label, vp, &vp->v_label); 280995fab37eSRobert Watson } 281095fab37eSRobert Watson 281195fab37eSRobert Watson void 281295fab37eSRobert Watson mac_create_devfs_device(dev_t dev, struct devfs_dirent *de) 281395fab37eSRobert Watson { 281495fab37eSRobert Watson 281595fab37eSRobert Watson MAC_PERFORM(create_devfs_device, dev, de, &de->de_label); 281695fab37eSRobert Watson } 281795fab37eSRobert Watson 281895fab37eSRobert Watson static int 281995fab37eSRobert Watson mac_stdcreatevnode_ea(struct vnode *vp) 282095fab37eSRobert Watson { 282195fab37eSRobert Watson int error; 282295fab37eSRobert Watson 282395fab37eSRobert Watson MAC_CHECK(stdcreatevnode_ea, vp, &vp->v_label); 282495fab37eSRobert Watson 282595fab37eSRobert Watson return (error); 282695fab37eSRobert Watson } 282795fab37eSRobert Watson 282895fab37eSRobert Watson void 282995fab37eSRobert Watson mac_create_devfs_directory(char *dirname, int dirnamelen, 283095fab37eSRobert Watson struct devfs_dirent *de) 283195fab37eSRobert Watson { 283295fab37eSRobert Watson 283395fab37eSRobert Watson MAC_PERFORM(create_devfs_directory, dirname, dirnamelen, de, 283495fab37eSRobert Watson &de->de_label); 283595fab37eSRobert Watson } 283695fab37eSRobert Watson 283795fab37eSRobert Watson /* 283895fab37eSRobert Watson * When a new vnode is created, this call will initialize its label. 283995fab37eSRobert Watson */ 284095fab37eSRobert Watson void 284195fab37eSRobert Watson mac_create_vnode(struct ucred *cred, struct vnode *parent, 284295fab37eSRobert Watson struct vnode *child) 284395fab37eSRobert Watson { 284495fab37eSRobert Watson int error; 284595fab37eSRobert Watson 284695fab37eSRobert Watson ASSERT_VOP_LOCKED(parent, "mac_create_vnode"); 284795fab37eSRobert Watson ASSERT_VOP_LOCKED(child, "mac_create_vnode"); 284895fab37eSRobert Watson 284995fab37eSRobert Watson error = vn_refreshlabel(parent, cred); 285095fab37eSRobert Watson if (error) { 285195fab37eSRobert Watson printf("mac_create_vnode: vn_refreshlabel returned %d\n", 285295fab37eSRobert Watson error); 285395fab37eSRobert Watson printf("mac_create_vnode: using old vnode label\n"); 285495fab37eSRobert Watson } 285595fab37eSRobert Watson 285695fab37eSRobert Watson MAC_PERFORM(create_vnode, cred, parent, &parent->v_label, child, 285795fab37eSRobert Watson &child->v_label); 285895fab37eSRobert Watson } 285995fab37eSRobert Watson 286095fab37eSRobert Watson int 286195fab37eSRobert Watson mac_setsockopt_label_set(struct ucred *cred, struct socket *so, 286295fab37eSRobert Watson struct mac *extmac) 286395fab37eSRobert Watson { 286495fab37eSRobert Watson struct label intlabel; 286595fab37eSRobert Watson int error; 286695fab37eSRobert Watson 286795fab37eSRobert Watson error = mac_internalize(&intlabel, extmac); 286895fab37eSRobert Watson if (error) 286995fab37eSRobert Watson return (error); 287095fab37eSRobert Watson 287195fab37eSRobert Watson mac_check_socket_relabel(cred, so, &intlabel); 287295fab37eSRobert Watson if (error) { 287395fab37eSRobert Watson mac_destroy_temp(&intlabel); 287495fab37eSRobert Watson return (error); 287595fab37eSRobert Watson } 287695fab37eSRobert Watson 287795fab37eSRobert Watson mac_relabel_socket(cred, so, &intlabel); 287895fab37eSRobert Watson 287995fab37eSRobert Watson mac_destroy_temp(&intlabel); 288095fab37eSRobert Watson return (0); 288195fab37eSRobert Watson } 288295fab37eSRobert Watson 288395fab37eSRobert Watson int 288495fab37eSRobert Watson mac_pipe_label_set(struct ucred *cred, struct pipe *pipe, struct label *label) 288595fab37eSRobert Watson { 288695fab37eSRobert Watson int error; 288795fab37eSRobert Watson 288895fab37eSRobert Watson error = mac_check_pipe_relabel(cred, pipe, label); 288995fab37eSRobert Watson if (error) 289095fab37eSRobert Watson return (error); 289195fab37eSRobert Watson 289295fab37eSRobert Watson mac_relabel_pipe(cred, pipe, label); 289395fab37eSRobert Watson 289495fab37eSRobert Watson return (0); 289595fab37eSRobert Watson } 289695fab37eSRobert Watson 289795fab37eSRobert Watson int 289895fab37eSRobert Watson mac_getsockopt_label_get(struct ucred *cred, struct socket *so, 289995fab37eSRobert Watson struct mac *extmac) 290095fab37eSRobert Watson { 290195fab37eSRobert Watson 290295fab37eSRobert Watson return (mac_externalize(&so->so_label, extmac)); 290395fab37eSRobert Watson } 290495fab37eSRobert Watson 290595fab37eSRobert Watson int 290695fab37eSRobert Watson mac_getsockopt_peerlabel_get(struct ucred *cred, struct socket *so, 290795fab37eSRobert Watson struct mac *extmac) 290895fab37eSRobert Watson { 290995fab37eSRobert Watson 291095fab37eSRobert Watson return (mac_externalize(&so->so_peerlabel, extmac)); 291195fab37eSRobert Watson } 291295fab37eSRobert Watson 291395fab37eSRobert Watson /* 291495fab37eSRobert Watson * Implementation of VOP_SETLABEL() that relies on extended attributes 291595fab37eSRobert Watson * to store label data. Can be referenced by filesystems supporting 291695fab37eSRobert Watson * extended attributes. 291795fab37eSRobert Watson */ 291895fab37eSRobert Watson int 291995fab37eSRobert Watson vop_stdsetlabel_ea(struct vop_setlabel_args *ap) 292095fab37eSRobert Watson { 292195fab37eSRobert Watson struct vnode *vp = ap->a_vp; 292295fab37eSRobert Watson struct label *intlabel = ap->a_label; 292395fab37eSRobert Watson struct mac extmac; 292495fab37eSRobert Watson int error; 292595fab37eSRobert Watson 292695fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "vop_stdsetlabel_ea"); 292795fab37eSRobert Watson 292895fab37eSRobert Watson /* 292995fab37eSRobert Watson * XXX: Eventually call out to EA check/set calls here. 293095fab37eSRobert Watson * Be particularly careful to avoid race conditions, 293195fab37eSRobert Watson * consistency problems, and stability problems when 293295fab37eSRobert Watson * dealing with multiple EAs. In particular, we require 293395fab37eSRobert Watson * the ability to write multiple EAs on the same file in 293495fab37eSRobert Watson * a single transaction, which the current EA interface 293595fab37eSRobert Watson * does not provide. 293695fab37eSRobert Watson */ 293795fab37eSRobert Watson 293895fab37eSRobert Watson error = mac_externalize(intlabel, &extmac); 293995fab37eSRobert Watson if (error) 294095fab37eSRobert Watson return (error); 294195fab37eSRobert Watson 294295fab37eSRobert Watson error = vn_extattr_set(vp, IO_NODELOCKED, 294395fab37eSRobert Watson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 294495fab37eSRobert Watson sizeof(extmac), (char *)&extmac, curthread); 294595fab37eSRobert Watson if (error) 294695fab37eSRobert Watson return (error); 294795fab37eSRobert Watson 294895fab37eSRobert Watson mac_relabel_vnode(ap->a_cred, vp, intlabel); 294995fab37eSRobert Watson 2950e6e370a7SJeff Roberson vp->v_vflag |= VV_CACHEDLABEL; 295195fab37eSRobert Watson 295295fab37eSRobert Watson return (0); 295395fab37eSRobert Watson } 295495fab37eSRobert Watson 295595fab37eSRobert Watson static int 295695fab37eSRobert Watson vn_setlabel(struct vnode *vp, struct label *intlabel, struct ucred *cred) 295795fab37eSRobert Watson { 295895fab37eSRobert Watson int error; 295995fab37eSRobert Watson 296095fab37eSRobert Watson if (vp->v_mount == NULL) { 296195fab37eSRobert Watson /* printf("vn_setlabel: null v_mount\n"); */ 296206be2aaaSNate Lawson if (vp->v_type != VNON) 296306be2aaaSNate Lawson printf("vn_setlabel: null v_mount with non-VNON\n"); 296495fab37eSRobert Watson return (EBADF); 296595fab37eSRobert Watson } 296695fab37eSRobert Watson 296795fab37eSRobert Watson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) 296895fab37eSRobert Watson return (EOPNOTSUPP); 296995fab37eSRobert Watson 297095fab37eSRobert Watson /* 297195fab37eSRobert Watson * Multi-phase commit. First check the policies to confirm the 297295fab37eSRobert Watson * change is OK. Then commit via the filesystem. Finally, 297395fab37eSRobert Watson * update the actual vnode label. Question: maybe the filesystem 297495fab37eSRobert Watson * should update the vnode at the end as part of VOP_SETLABEL()? 297595fab37eSRobert Watson */ 297695fab37eSRobert Watson error = mac_check_vnode_relabel(cred, vp, intlabel); 297795fab37eSRobert Watson if (error) 297895fab37eSRobert Watson return (error); 297995fab37eSRobert Watson 298095fab37eSRobert Watson /* 298195fab37eSRobert Watson * VADMIN provides the opportunity for the filesystem to make 298295fab37eSRobert Watson * decisions about who is and is not able to modify labels 298395fab37eSRobert Watson * and protections on files. This might not be right. We can't 298495fab37eSRobert Watson * assume VOP_SETLABEL() will do it, because we might implement 298595fab37eSRobert Watson * that as part of vop_stdsetlabel_ea(). 298695fab37eSRobert Watson */ 298795fab37eSRobert Watson error = VOP_ACCESS(vp, VADMIN, cred, curthread); 298895fab37eSRobert Watson if (error) 298995fab37eSRobert Watson return (error); 299095fab37eSRobert Watson 299195fab37eSRobert Watson error = VOP_SETLABEL(vp, intlabel, cred, curthread); 299295fab37eSRobert Watson if (error) 299395fab37eSRobert Watson return (error); 299495fab37eSRobert Watson 299595fab37eSRobert Watson return (0); 299695fab37eSRobert Watson } 299795fab37eSRobert Watson 299895fab37eSRobert Watson /* 299995fab37eSRobert Watson * MPSAFE 300095fab37eSRobert Watson */ 300195fab37eSRobert Watson int 300295fab37eSRobert Watson __mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 300395fab37eSRobert Watson { 300495fab37eSRobert Watson struct mac extmac; 300595fab37eSRobert Watson int error; 300695fab37eSRobert Watson 300795fab37eSRobert Watson error = mac_externalize(&td->td_ucred->cr_label, &extmac); 300895fab37eSRobert Watson if (error == 0) 300995fab37eSRobert Watson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 301095fab37eSRobert Watson 301195fab37eSRobert Watson return (error); 301295fab37eSRobert Watson } 301395fab37eSRobert Watson 301495fab37eSRobert Watson /* 301595fab37eSRobert Watson * MPSAFE 301695fab37eSRobert Watson */ 301795fab37eSRobert Watson int 301895fab37eSRobert Watson __mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 301995fab37eSRobert Watson { 302095fab37eSRobert Watson struct ucred *newcred, *oldcred; 302195fab37eSRobert Watson struct proc *p; 302295fab37eSRobert Watson struct mac extmac; 302395fab37eSRobert Watson struct label intlabel; 302495fab37eSRobert Watson int error; 302595fab37eSRobert Watson 302695fab37eSRobert Watson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 302795fab37eSRobert Watson if (error) 302895fab37eSRobert Watson return (error); 302995fab37eSRobert Watson 303095fab37eSRobert Watson error = mac_internalize(&intlabel, &extmac); 303195fab37eSRobert Watson if (error) 303295fab37eSRobert Watson return (error); 303395fab37eSRobert Watson 303495fab37eSRobert Watson newcred = crget(); 303595fab37eSRobert Watson 303695fab37eSRobert Watson p = td->td_proc; 303795fab37eSRobert Watson PROC_LOCK(p); 303895fab37eSRobert Watson oldcred = p->p_ucred; 303995fab37eSRobert Watson 304095fab37eSRobert Watson error = mac_check_cred_relabel(oldcred, &intlabel); 304195fab37eSRobert Watson if (error) { 304295fab37eSRobert Watson PROC_UNLOCK(p); 304395fab37eSRobert Watson mac_destroy_temp(&intlabel); 304495fab37eSRobert Watson crfree(newcred); 304595fab37eSRobert Watson return (error); 304695fab37eSRobert Watson } 304795fab37eSRobert Watson 304895fab37eSRobert Watson setsugid(p); 304995fab37eSRobert Watson crcopy(newcred, oldcred); 305095fab37eSRobert Watson mac_relabel_cred(newcred, &intlabel); 305195fab37eSRobert Watson p->p_ucred = newcred; 3052e5cb5e37SRobert Watson 3053e5cb5e37SRobert Watson /* 3054e5cb5e37SRobert Watson * Grab additional reference for use while revoking mmaps, prior 3055e5cb5e37SRobert Watson * to releasing the proc lock and sharing the cred. 3056e5cb5e37SRobert Watson */ 3057e5cb5e37SRobert Watson crhold(newcred); 305895fab37eSRobert Watson PROC_UNLOCK(p); 3059e5cb5e37SRobert Watson 306016140035SRobert Watson mtx_lock(&Giant); 3061e5cb5e37SRobert Watson mac_cred_mmapped_drop_perms(td, newcred); 306216140035SRobert Watson mtx_unlock(&Giant); 3063e5cb5e37SRobert Watson 3064e5cb5e37SRobert Watson crfree(newcred); /* Free revocation reference. */ 306595fab37eSRobert Watson crfree(oldcred); 306695fab37eSRobert Watson mac_destroy_temp(&intlabel); 306795fab37eSRobert Watson return (0); 306895fab37eSRobert Watson } 306995fab37eSRobert Watson 307095fab37eSRobert Watson /* 307195fab37eSRobert Watson * MPSAFE 307295fab37eSRobert Watson */ 307395fab37eSRobert Watson int 307495fab37eSRobert Watson __mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 307595fab37eSRobert Watson { 307695fab37eSRobert Watson struct file *fp; 307795fab37eSRobert Watson struct mac extmac; 307895fab37eSRobert Watson struct vnode *vp; 307995fab37eSRobert Watson struct pipe *pipe; 308095fab37eSRobert Watson int error; 308195fab37eSRobert Watson 308295fab37eSRobert Watson mtx_lock(&Giant); 308395fab37eSRobert Watson 308495fab37eSRobert Watson error = fget(td, SCARG(uap, fd), &fp); 308595fab37eSRobert Watson if (error) 308695fab37eSRobert Watson goto out; 308795fab37eSRobert Watson 308895fab37eSRobert Watson switch (fp->f_type) { 308995fab37eSRobert Watson case DTYPE_FIFO: 309095fab37eSRobert Watson case DTYPE_VNODE: 309195fab37eSRobert Watson vp = (struct vnode *)fp->f_data; 309295fab37eSRobert Watson 309395fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 309495fab37eSRobert Watson error = vn_refreshlabel(vp, td->td_ucred); 309595fab37eSRobert Watson if (error == 0) 309695fab37eSRobert Watson error = mac_externalize(&vp->v_label, &extmac); 309795fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 309895fab37eSRobert Watson break; 309995fab37eSRobert Watson case DTYPE_PIPE: 310095fab37eSRobert Watson pipe = (struct pipe *)fp->f_data; 310195fab37eSRobert Watson error = mac_externalize(pipe->pipe_label, &extmac); 310295fab37eSRobert Watson break; 310395fab37eSRobert Watson default: 310495fab37eSRobert Watson error = EINVAL; 310595fab37eSRobert Watson } 310695fab37eSRobert Watson 310795fab37eSRobert Watson if (error == 0) 310895fab37eSRobert Watson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 310995fab37eSRobert Watson 311095fab37eSRobert Watson fdrop(fp, td); 311195fab37eSRobert Watson 311295fab37eSRobert Watson out: 311395fab37eSRobert Watson mtx_unlock(&Giant); 311495fab37eSRobert Watson return (error); 311595fab37eSRobert Watson } 311695fab37eSRobert Watson 311795fab37eSRobert Watson /* 311895fab37eSRobert Watson * MPSAFE 311995fab37eSRobert Watson */ 312095fab37eSRobert Watson int 312195fab37eSRobert Watson __mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 312295fab37eSRobert Watson { 312395fab37eSRobert Watson struct nameidata nd; 312495fab37eSRobert Watson struct mac extmac; 312595fab37eSRobert Watson int error; 312695fab37eSRobert Watson 312795fab37eSRobert Watson mtx_lock(&Giant); 312895fab37eSRobert Watson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 312995fab37eSRobert Watson SCARG(uap, path_p), td); 313095fab37eSRobert Watson error = namei(&nd); 313195fab37eSRobert Watson if (error) 313295fab37eSRobert Watson goto out; 313395fab37eSRobert Watson 313495fab37eSRobert Watson error = vn_refreshlabel(nd.ni_vp, td->td_ucred); 313595fab37eSRobert Watson if (error == 0) 313695fab37eSRobert Watson error = mac_externalize(&nd.ni_vp->v_label, &extmac); 313795fab37eSRobert Watson NDFREE(&nd, 0); 313895fab37eSRobert Watson if (error) 313995fab37eSRobert Watson goto out; 314095fab37eSRobert Watson 314195fab37eSRobert Watson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 314295fab37eSRobert Watson 314395fab37eSRobert Watson out: 314495fab37eSRobert Watson mtx_unlock(&Giant); 314595fab37eSRobert Watson return (error); 314695fab37eSRobert Watson } 314795fab37eSRobert Watson 314895fab37eSRobert Watson /* 314995fab37eSRobert Watson * MPSAFE 315095fab37eSRobert Watson */ 315195fab37eSRobert Watson int 315295fab37eSRobert Watson __mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 315395fab37eSRobert Watson { 315495fab37eSRobert Watson struct file *fp; 315595fab37eSRobert Watson struct mac extmac; 315695fab37eSRobert Watson struct label intlabel; 315795fab37eSRobert Watson struct mount *mp; 315895fab37eSRobert Watson struct vnode *vp; 315995fab37eSRobert Watson struct pipe *pipe; 316095fab37eSRobert Watson int error; 316195fab37eSRobert Watson 316295fab37eSRobert Watson mtx_lock(&Giant); 316395fab37eSRobert Watson error = fget(td, SCARG(uap, fd), &fp); 316495fab37eSRobert Watson if (error) 316595fab37eSRobert Watson goto out1; 316695fab37eSRobert Watson 316795fab37eSRobert Watson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 316895fab37eSRobert Watson if (error) 316995fab37eSRobert Watson goto out2; 317095fab37eSRobert Watson 317195fab37eSRobert Watson error = mac_internalize(&intlabel, &extmac); 317295fab37eSRobert Watson if (error) 317395fab37eSRobert Watson goto out2; 317495fab37eSRobert Watson 317595fab37eSRobert Watson switch (fp->f_type) { 317695fab37eSRobert Watson case DTYPE_FIFO: 317795fab37eSRobert Watson case DTYPE_VNODE: 317895fab37eSRobert Watson vp = (struct vnode *)fp->f_data; 317995fab37eSRobert Watson error = vn_start_write(vp, &mp, V_WAIT | PCATCH); 318095fab37eSRobert Watson if (error != 0) 318195fab37eSRobert Watson break; 318295fab37eSRobert Watson 318395fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 318495fab37eSRobert Watson error = vn_setlabel(vp, &intlabel, td->td_ucred); 318595fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 318695fab37eSRobert Watson vn_finished_write(mp); 318795fab37eSRobert Watson mac_destroy_temp(&intlabel); 318895fab37eSRobert Watson break; 318995fab37eSRobert Watson case DTYPE_PIPE: 319095fab37eSRobert Watson pipe = (struct pipe *)fp->f_data; 319195fab37eSRobert Watson error = mac_pipe_label_set(td->td_ucred, pipe, &intlabel); 319295fab37eSRobert Watson break; 319395fab37eSRobert Watson default: 319495fab37eSRobert Watson error = EINVAL; 319595fab37eSRobert Watson } 319695fab37eSRobert Watson 319795fab37eSRobert Watson out2: 319895fab37eSRobert Watson fdrop(fp, td); 319995fab37eSRobert Watson out1: 320095fab37eSRobert Watson mtx_unlock(&Giant); 320195fab37eSRobert Watson return (error); 320295fab37eSRobert Watson } 320395fab37eSRobert Watson 320495fab37eSRobert Watson /* 320595fab37eSRobert Watson * MPSAFE 320695fab37eSRobert Watson */ 320795fab37eSRobert Watson int 320895fab37eSRobert Watson __mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 320995fab37eSRobert Watson { 321095fab37eSRobert Watson struct nameidata nd; 321195fab37eSRobert Watson struct mac extmac; 321295fab37eSRobert Watson struct label intlabel; 321395fab37eSRobert Watson struct mount *mp; 321495fab37eSRobert Watson int error; 321595fab37eSRobert Watson 321695fab37eSRobert Watson mtx_lock(&Giant); 321795fab37eSRobert Watson 321895fab37eSRobert Watson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 321995fab37eSRobert Watson if (error) 322095fab37eSRobert Watson goto out; 322195fab37eSRobert Watson 322295fab37eSRobert Watson error = mac_internalize(&intlabel, &extmac); 322395fab37eSRobert Watson if (error) 322495fab37eSRobert Watson goto out; 322595fab37eSRobert Watson 322695fab37eSRobert Watson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 322795fab37eSRobert Watson SCARG(uap, path_p), td); 322895fab37eSRobert Watson error = namei(&nd); 322995fab37eSRobert Watson if (error) 323095fab37eSRobert Watson goto out2; 323195fab37eSRobert Watson error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH); 323295fab37eSRobert Watson if (error) 323395fab37eSRobert Watson goto out2; 323495fab37eSRobert Watson 323595fab37eSRobert Watson error = vn_setlabel(nd.ni_vp, &intlabel, td->td_ucred); 323695fab37eSRobert Watson 323795fab37eSRobert Watson vn_finished_write(mp); 323895fab37eSRobert Watson out2: 323995fab37eSRobert Watson mac_destroy_temp(&intlabel); 324095fab37eSRobert Watson NDFREE(&nd, 0); 324195fab37eSRobert Watson out: 324295fab37eSRobert Watson mtx_unlock(&Giant); 324395fab37eSRobert Watson return (error); 324495fab37eSRobert Watson } 324595fab37eSRobert Watson 324627f2eac7SRobert Watson int 324727f2eac7SRobert Watson mac_syscall(struct thread *td, struct mac_syscall_args *uap) 324827f2eac7SRobert Watson { 324927f2eac7SRobert Watson struct mac_policy_conf *mpc; 325027f2eac7SRobert Watson char target[MAC_MAX_POLICY_NAME]; 325127f2eac7SRobert Watson int error; 325227f2eac7SRobert Watson 325327f2eac7SRobert Watson error = copyinstr(SCARG(uap, policy), target, sizeof(target), NULL); 325427f2eac7SRobert Watson if (error) 325527f2eac7SRobert Watson return (error); 325627f2eac7SRobert Watson 325727f2eac7SRobert Watson error = ENOSYS; 325827f2eac7SRobert Watson MAC_POLICY_LIST_BUSY(); 325927f2eac7SRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { 326027f2eac7SRobert Watson if (strcmp(mpc->mpc_name, target) == 0 && 326127f2eac7SRobert Watson mpc->mpc_ops->mpo_syscall != NULL) { 326227f2eac7SRobert Watson error = mpc->mpc_ops->mpo_syscall(td, 326327f2eac7SRobert Watson SCARG(uap, call), SCARG(uap, arg)); 326427f2eac7SRobert Watson goto out; 326527f2eac7SRobert Watson } 326627f2eac7SRobert Watson } 326727f2eac7SRobert Watson 326827f2eac7SRobert Watson out: 326927f2eac7SRobert Watson MAC_POLICY_LIST_UNBUSY(); 327027f2eac7SRobert Watson return (error); 327127f2eac7SRobert Watson } 327227f2eac7SRobert Watson 327395fab37eSRobert Watson SYSINIT(mac, SI_SUB_MAC, SI_ORDER_FIRST, mac_init, NULL); 327495fab37eSRobert Watson SYSINIT(mac_late, SI_SUB_MAC_LATE, SI_ORDER_FIRST, mac_late_init, NULL); 327595fab37eSRobert Watson 327695fab37eSRobert Watson #else /* !MAC */ 32777bc82500SRobert Watson 32787bc82500SRobert Watson int 32797bc82500SRobert Watson __mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 32807bc82500SRobert Watson { 32817bc82500SRobert Watson 32827bc82500SRobert Watson return (ENOSYS); 32837bc82500SRobert Watson } 32847bc82500SRobert Watson 32857bc82500SRobert Watson int 32867bc82500SRobert Watson __mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 32877bc82500SRobert Watson { 32887bc82500SRobert Watson 32897bc82500SRobert Watson return (ENOSYS); 32907bc82500SRobert Watson } 32917bc82500SRobert Watson 32927bc82500SRobert Watson int 32937bc82500SRobert Watson __mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 32947bc82500SRobert Watson { 32957bc82500SRobert Watson 32967bc82500SRobert Watson return (ENOSYS); 32977bc82500SRobert Watson } 32987bc82500SRobert Watson 32997bc82500SRobert Watson int 33007bc82500SRobert Watson __mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 33017bc82500SRobert Watson { 33027bc82500SRobert Watson 33037bc82500SRobert Watson return (ENOSYS); 33047bc82500SRobert Watson } 33057bc82500SRobert Watson 33067bc82500SRobert Watson int 33077bc82500SRobert Watson __mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 33087bc82500SRobert Watson { 33097bc82500SRobert Watson 33107bc82500SRobert Watson return (ENOSYS); 33117bc82500SRobert Watson } 33127bc82500SRobert Watson 33137bc82500SRobert Watson int 33147bc82500SRobert Watson __mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 33157bc82500SRobert Watson { 33167bc82500SRobert Watson 33177bc82500SRobert Watson return (ENOSYS); 33187bc82500SRobert Watson } 331995fab37eSRobert Watson 332027f2eac7SRobert Watson int 332127f2eac7SRobert Watson mac_syscall(struct thread *td, struct mac_syscall_args *uap) 332227f2eac7SRobert Watson { 332327f2eac7SRobert Watson 332427f2eac7SRobert Watson return (ENOSYS); 332527f2eac7SRobert Watson } 332627f2eac7SRobert Watson 332795fab37eSRobert Watson #endif /* !MAC */ 3328