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" 49328048bcSPoul-Henning Kamp #include "opt_devfs.h" 50f9d0d524SRobert Watson 517bc82500SRobert Watson #include <sys/param.h> 5295fab37eSRobert Watson #include <sys/extattr.h> 5395fab37eSRobert Watson #include <sys/kernel.h> 5495fab37eSRobert Watson #include <sys/lock.h> 55b656366bSBruce Evans #include <sys/malloc.h> 5695fab37eSRobert Watson #include <sys/mutex.h> 5795fab37eSRobert Watson #include <sys/mac.h> 587ba28492SRobert Watson #include <sys/module.h> 5995fab37eSRobert Watson #include <sys/proc.h> 6095fab37eSRobert Watson #include <sys/systm.h> 617bc82500SRobert Watson #include <sys/sysproto.h> 627bc82500SRobert Watson #include <sys/sysent.h> 6395fab37eSRobert Watson #include <sys/vnode.h> 6495fab37eSRobert Watson #include <sys/mount.h> 6595fab37eSRobert Watson #include <sys/file.h> 6695fab37eSRobert Watson #include <sys/namei.h> 6795fab37eSRobert Watson #include <sys/socket.h> 6895fab37eSRobert Watson #include <sys/pipe.h> 6995fab37eSRobert Watson #include <sys/socketvar.h> 7095fab37eSRobert Watson #include <sys/sysctl.h> 7195fab37eSRobert Watson 7295fab37eSRobert Watson #include <vm/vm.h> 7395fab37eSRobert Watson #include <vm/pmap.h> 7495fab37eSRobert Watson #include <vm/vm_map.h> 7595fab37eSRobert Watson #include <vm/vm_object.h> 7695fab37eSRobert Watson 7795fab37eSRobert Watson #include <sys/mac_policy.h> 7895fab37eSRobert Watson 7995fab37eSRobert Watson #include <fs/devfs/devfs.h> 8095fab37eSRobert Watson 8195fab37eSRobert Watson #include <net/bpfdesc.h> 8295fab37eSRobert Watson #include <net/if.h> 8395fab37eSRobert Watson #include <net/if_var.h> 8495fab37eSRobert Watson 8595fab37eSRobert Watson #include <netinet/in.h> 8695fab37eSRobert Watson #include <netinet/ip_var.h> 8795fab37eSRobert Watson 8895fab37eSRobert Watson #ifdef MAC 8995fab37eSRobert Watson 907ba28492SRobert Watson /* 917ba28492SRobert Watson * Declare that the kernel provides MAC support, version 1. This permits 927ba28492SRobert Watson * modules to refuse to be loaded if the necessary support isn't present, 937ba28492SRobert Watson * even if it's pre-boot. 947ba28492SRobert Watson */ 957ba28492SRobert Watson MODULE_VERSION(kernel_mac_support, 1); 967ba28492SRobert Watson 9795fab37eSRobert Watson SYSCTL_DECL(_security); 9895fab37eSRobert Watson 9995fab37eSRobert Watson SYSCTL_NODE(_security, OID_AUTO, mac, CTLFLAG_RW, 0, 10095fab37eSRobert Watson "TrustedBSD MAC policy controls"); 10195fab37eSRobert Watson #ifndef MAC_MAX_POLICIES 10295fab37eSRobert Watson #define MAC_MAX_POLICIES 8 10395fab37eSRobert Watson #endif 10495fab37eSRobert Watson #if MAC_MAX_POLICIES > 32 10595fab37eSRobert Watson #error "MAC_MAX_POLICIES too large" 10695fab37eSRobert Watson #endif 10795fab37eSRobert Watson static unsigned int mac_max_policies = MAC_MAX_POLICIES; 10895fab37eSRobert Watson static unsigned int mac_policy_offsets_free = (1 << MAC_MAX_POLICIES) - 1; 10995fab37eSRobert Watson SYSCTL_UINT(_security_mac, OID_AUTO, max_policies, CTLFLAG_RD, 11095fab37eSRobert Watson &mac_max_policies, 0, ""); 11195fab37eSRobert Watson 11295fab37eSRobert Watson static int mac_late = 0; 11395fab37eSRobert Watson 11495fab37eSRobert Watson static int mac_enforce_fs = 1; 11595fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_fs, CTLFLAG_RW, 11695fab37eSRobert Watson &mac_enforce_fs, 0, "Enforce MAC policy on file system objects"); 11795fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_fs", &mac_enforce_fs); 11895fab37eSRobert Watson 11995fab37eSRobert Watson static int mac_enforce_network = 1; 12095fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_network, CTLFLAG_RW, 12195fab37eSRobert Watson &mac_enforce_network, 0, "Enforce MAC policy on network packets"); 12295fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_network", &mac_enforce_network); 12395fab37eSRobert Watson 124b88c98f6SRobert Watson static int mac_enforce_pipe = 1; 125b88c98f6SRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_pipe, CTLFLAG_RW, 126b88c98f6SRobert Watson &mac_enforce_pipe, 0, "Enforce MAC policy on pipe operations"); 127c031391bSRobert Watson TUNABLE_INT("security.mac.enforce_pipe", &mac_enforce_pipe); 128b88c98f6SRobert Watson 12995fab37eSRobert Watson static int mac_enforce_process = 1; 13095fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_process, CTLFLAG_RW, 13195fab37eSRobert Watson &mac_enforce_process, 0, "Enforce MAC policy on inter-process operations"); 13295fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_process", &mac_enforce_process); 13395fab37eSRobert Watson 13495fab37eSRobert Watson static int mac_enforce_socket = 1; 13595fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_socket, CTLFLAG_RW, 13695fab37eSRobert Watson &mac_enforce_socket, 0, "Enforce MAC policy on socket operations"); 13795fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_socket", &mac_enforce_socket); 13895fab37eSRobert Watson 139ca7850c3SRobert Watson static int mac_enforce_vm = 1; 140ca7850c3SRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_vm, CTLFLAG_RW, 141ca7850c3SRobert Watson &mac_enforce_vm, 0, "Enforce MAC policy on vm operations"); 142c031391bSRobert Watson TUNABLE_INT("security.mac.enforce_vm", &mac_enforce_vm); 143ca7850c3SRobert Watson 14495fab37eSRobert Watson static int mac_label_size = sizeof(struct mac); 14595fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, label_size, CTLFLAG_RD, 14695fab37eSRobert Watson &mac_label_size, 0, "Pre-compiled MAC label size"); 14795fab37eSRobert Watson 14895fab37eSRobert Watson static int mac_cache_fslabel_in_vnode = 1; 14995fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, cache_fslabel_in_vnode, CTLFLAG_RW, 15095fab37eSRobert Watson &mac_cache_fslabel_in_vnode, 0, "Cache mount fslabel in vnode"); 15195fab37eSRobert Watson TUNABLE_INT("security.mac.cache_fslabel_in_vnode", 15295fab37eSRobert Watson &mac_cache_fslabel_in_vnode); 15395fab37eSRobert Watson 15495fab37eSRobert Watson static int mac_vnode_label_cache_hits = 0; 15595fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD, 15695fab37eSRobert Watson &mac_vnode_label_cache_hits, 0, "Cache hits on vnode labels"); 15795fab37eSRobert Watson static int mac_vnode_label_cache_misses = 0; 15895fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD, 15995fab37eSRobert Watson &mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels"); 160c0f39905SRobert Watson 161c0f39905SRobert Watson static int mac_mmap_revocation = 1; 162c0f39905SRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation, CTLFLAG_RW, 163c0f39905SRobert Watson &mac_mmap_revocation, 0, "Revoke mmap access to files on subject " 164c0f39905SRobert Watson "relabel"); 16599fa64f8SRobert Watson static int mac_mmap_revocation_via_cow = 0; 16695fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW, 16795fab37eSRobert Watson &mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via " 16895fab37eSRobert Watson "copy-on-write semantics, or by removing all write access"); 16995fab37eSRobert Watson 170f050add5SRobert Watson #ifdef MAC_DEBUG 1716be0c25eSRobert Watson SYSCTL_NODE(_security_mac, OID_AUTO, debug, CTLFLAG_RW, 0, 1726be0c25eSRobert Watson "TrustedBSD MAC debug info"); 1736be0c25eSRobert Watson 1746be0c25eSRobert Watson static int mac_debug_label_fallback = 0; 1756be0c25eSRobert Watson SYSCTL_INT(_security_mac_debug, OID_AUTO, label_fallback, CTLFLAG_RW, 1766be0c25eSRobert Watson &mac_debug_label_fallback, 0, "Filesystems should fall back to fs label" 1776be0c25eSRobert Watson "when label is corrupted."); 1786be0c25eSRobert Watson TUNABLE_INT("security.mac.debug_label_fallback", 1796be0c25eSRobert Watson &mac_debug_label_fallback); 1806be0c25eSRobert Watson 18195fab37eSRobert Watson static unsigned int nmacmbufs, nmaccreds, nmacifnets, nmacbpfdescs, 18295fab37eSRobert Watson nmacsockets, nmacmounts, nmactemp, nmacvnodes, nmacdevfsdirents, 18395fab37eSRobert Watson nmacipqs, nmacpipes; 18495fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, mbufs, CTLFLAG_RD, 18595fab37eSRobert Watson &nmacmbufs, 0, "number of mbufs in use"); 18695fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, creds, CTLFLAG_RD, 18795fab37eSRobert Watson &nmaccreds, 0, "number of ucreds in use"); 18895fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, ifnets, CTLFLAG_RD, 18995fab37eSRobert Watson &nmacifnets, 0, "number of ifnets in use"); 19095fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, ipqs, CTLFLAG_RD, 19195fab37eSRobert Watson &nmacipqs, 0, "number of ipqs in use"); 19295fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, bpfdescs, CTLFLAG_RD, 19395fab37eSRobert Watson &nmacbpfdescs, 0, "number of bpfdescs in use"); 19495fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, sockets, CTLFLAG_RD, 19595fab37eSRobert Watson &nmacsockets, 0, "number of sockets in use"); 19695fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, pipes, CTLFLAG_RD, 19795fab37eSRobert Watson &nmacpipes, 0, "number of pipes in use"); 19895fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, mounts, CTLFLAG_RD, 19995fab37eSRobert Watson &nmacmounts, 0, "number of mounts in use"); 20095fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, temp, CTLFLAG_RD, 20195fab37eSRobert Watson &nmactemp, 0, "number of temporary labels in use"); 20295fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, vnodes, CTLFLAG_RD, 20395fab37eSRobert Watson &nmacvnodes, 0, "number of vnodes in use"); 20495fab37eSRobert Watson SYSCTL_UINT(_security_mac_debug, OID_AUTO, devfsdirents, CTLFLAG_RD, 20595fab37eSRobert Watson &nmacdevfsdirents, 0, "number of devfs dirents inuse"); 206f050add5SRobert Watson #endif 20795fab37eSRobert Watson 20895fab37eSRobert Watson static int error_select(int error1, int error2); 20995fab37eSRobert Watson static int mac_externalize(struct label *label, struct mac *mac); 21095fab37eSRobert Watson static int mac_policy_register(struct mac_policy_conf *mpc); 21195fab37eSRobert Watson static int mac_policy_unregister(struct mac_policy_conf *mpc); 21295fab37eSRobert Watson 21395fab37eSRobert Watson static int mac_stdcreatevnode_ea(struct vnode *vp); 21495fab37eSRobert Watson static void mac_cred_mmapped_drop_perms(struct thread *td, 21595fab37eSRobert Watson struct ucred *cred); 21695fab37eSRobert Watson static void mac_cred_mmapped_drop_perms_recurse(struct thread *td, 21795fab37eSRobert Watson struct ucred *cred, struct vm_map *map); 21895fab37eSRobert Watson 21995fab37eSRobert Watson MALLOC_DEFINE(M_MACOPVEC, "macopvec", "MAC policy operation vector"); 22095fab37eSRobert Watson MALLOC_DEFINE(M_MACPIPELABEL, "macpipelabel", "MAC labels for pipes"); 22195fab37eSRobert Watson 22295fab37eSRobert Watson /* 22395fab37eSRobert Watson * mac_policy_list_lock protects the consistency of 'mac_policy_list', 22495fab37eSRobert Watson * the linked list of attached policy modules. Read-only consumers of 22595fab37eSRobert Watson * the list must acquire a shared lock for the duration of their use; 22695fab37eSRobert Watson * writers must acquire an exclusive lock. Note that for compound 22795fab37eSRobert Watson * operations, locks should be held for the entire compound operation, 22895fab37eSRobert Watson * and that this is not yet done for relabel requests. 22995fab37eSRobert Watson */ 23095fab37eSRobert Watson static struct mtx mac_policy_list_lock; 23195fab37eSRobert Watson static LIST_HEAD(, mac_policy_conf) mac_policy_list; 23295fab37eSRobert Watson static int mac_policy_list_busy; 23395fab37eSRobert Watson #define MAC_POLICY_LIST_LOCKINIT() mtx_init(&mac_policy_list_lock, \ 23495fab37eSRobert Watson "mac_policy_list_lock", NULL, MTX_DEF); 23595fab37eSRobert Watson #define MAC_POLICY_LIST_LOCK() mtx_lock(&mac_policy_list_lock); 23695fab37eSRobert Watson #define MAC_POLICY_LIST_UNLOCK() mtx_unlock(&mac_policy_list_lock); 23795fab37eSRobert Watson 23895fab37eSRobert Watson #define MAC_POLICY_LIST_BUSY() do { \ 23995fab37eSRobert Watson MAC_POLICY_LIST_LOCK(); \ 24095fab37eSRobert Watson mac_policy_list_busy++; \ 24195fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); \ 24295fab37eSRobert Watson } while (0) 24395fab37eSRobert Watson 24495fab37eSRobert Watson #define MAC_POLICY_LIST_UNBUSY() do { \ 24595fab37eSRobert Watson MAC_POLICY_LIST_LOCK(); \ 24695fab37eSRobert Watson mac_policy_list_busy--; \ 24795fab37eSRobert Watson if (mac_policy_list_busy < 0) \ 24895fab37eSRobert Watson panic("Extra mac_policy_list_busy--"); \ 24995fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); \ 25095fab37eSRobert Watson } while (0) 25195fab37eSRobert Watson 25295fab37eSRobert Watson /* 25395fab37eSRobert Watson * MAC_CHECK performs the designated check by walking the policy 25495fab37eSRobert Watson * module list and checking with each as to how it feels about the 25595fab37eSRobert Watson * request. Note that it returns its value via 'error' in the scope 25695fab37eSRobert Watson * of the caller. 25795fab37eSRobert Watson */ 25895fab37eSRobert Watson #define MAC_CHECK(check, args...) do { \ 25995fab37eSRobert Watson struct mac_policy_conf *mpc; \ 26095fab37eSRobert Watson \ 26195fab37eSRobert Watson error = 0; \ 26295fab37eSRobert Watson MAC_POLICY_LIST_BUSY(); \ 26395fab37eSRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 26495fab37eSRobert Watson if (mpc->mpc_ops->mpo_ ## check != NULL) \ 26595fab37eSRobert Watson error = error_select( \ 26695fab37eSRobert Watson mpc->mpc_ops->mpo_ ## check (args), \ 26795fab37eSRobert Watson error); \ 26895fab37eSRobert Watson } \ 26995fab37eSRobert Watson MAC_POLICY_LIST_UNBUSY(); \ 27095fab37eSRobert Watson } while (0) 27195fab37eSRobert Watson 27295fab37eSRobert Watson /* 27395fab37eSRobert Watson * MAC_BOOLEAN performs the designated boolean composition by walking 27495fab37eSRobert Watson * the module list, invoking each instance of the operation, and 27595fab37eSRobert Watson * combining the results using the passed C operator. Note that it 27695fab37eSRobert Watson * returns its value via 'result' in the scope of the caller, which 27795fab37eSRobert Watson * should be initialized by the caller in a meaningful way to get 27895fab37eSRobert Watson * a meaningful result. 27995fab37eSRobert Watson */ 28095fab37eSRobert Watson #define MAC_BOOLEAN(operation, composition, args...) do { \ 28195fab37eSRobert Watson struct mac_policy_conf *mpc; \ 28295fab37eSRobert Watson \ 28395fab37eSRobert Watson MAC_POLICY_LIST_BUSY(); \ 28495fab37eSRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 28595fab37eSRobert Watson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 28695fab37eSRobert Watson result = result composition \ 28795fab37eSRobert Watson mpc->mpc_ops->mpo_ ## operation (args); \ 28895fab37eSRobert Watson } \ 28995fab37eSRobert Watson MAC_POLICY_LIST_UNBUSY(); \ 29095fab37eSRobert Watson } while (0) 29195fab37eSRobert Watson 29295fab37eSRobert Watson /* 29395fab37eSRobert Watson * MAC_PERFORM performs the designated operation by walking the policy 29495fab37eSRobert Watson * module list and invoking that operation for each policy. 29595fab37eSRobert Watson */ 29695fab37eSRobert Watson #define MAC_PERFORM(operation, args...) do { \ 29795fab37eSRobert Watson struct mac_policy_conf *mpc; \ 29895fab37eSRobert Watson \ 29995fab37eSRobert Watson MAC_POLICY_LIST_BUSY(); \ 30095fab37eSRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 30195fab37eSRobert Watson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 30295fab37eSRobert Watson mpc->mpc_ops->mpo_ ## operation (args); \ 30395fab37eSRobert Watson } \ 30495fab37eSRobert Watson MAC_POLICY_LIST_UNBUSY(); \ 30595fab37eSRobert Watson } while (0) 30695fab37eSRobert Watson 30795fab37eSRobert Watson /* 30895fab37eSRobert Watson * Initialize the MAC subsystem, including appropriate SMP locks. 30995fab37eSRobert Watson */ 31095fab37eSRobert Watson static void 31195fab37eSRobert Watson mac_init(void) 31295fab37eSRobert Watson { 31395fab37eSRobert Watson 31495fab37eSRobert Watson LIST_INIT(&mac_policy_list); 31595fab37eSRobert Watson MAC_POLICY_LIST_LOCKINIT(); 31695fab37eSRobert Watson } 31795fab37eSRobert Watson 31895fab37eSRobert Watson /* 31995fab37eSRobert Watson * For the purposes of modules that want to know if they were loaded 32095fab37eSRobert Watson * "early", set the mac_late flag once we've processed modules either 32195fab37eSRobert Watson * linked into the kernel, or loaded before the kernel startup. 32295fab37eSRobert Watson */ 32395fab37eSRobert Watson static void 32495fab37eSRobert Watson mac_late_init(void) 32595fab37eSRobert Watson { 32695fab37eSRobert Watson 32795fab37eSRobert Watson mac_late = 1; 32895fab37eSRobert Watson } 32995fab37eSRobert Watson 33095fab37eSRobert Watson /* 33195fab37eSRobert Watson * Allow MAC policy modules to register during boot, etc. 33295fab37eSRobert Watson */ 33395fab37eSRobert Watson int 33495fab37eSRobert Watson mac_policy_modevent(module_t mod, int type, void *data) 33595fab37eSRobert Watson { 33695fab37eSRobert Watson struct mac_policy_conf *mpc; 33795fab37eSRobert Watson int error; 33895fab37eSRobert Watson 33995fab37eSRobert Watson error = 0; 34095fab37eSRobert Watson mpc = (struct mac_policy_conf *) data; 34195fab37eSRobert Watson 34295fab37eSRobert Watson switch (type) { 34395fab37eSRobert Watson case MOD_LOAD: 34495fab37eSRobert Watson if (mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_NOTLATE && 34595fab37eSRobert Watson mac_late) { 34695fab37eSRobert Watson printf("mac_policy_modevent: can't load %s policy " 34795fab37eSRobert Watson "after booting\n", mpc->mpc_name); 34895fab37eSRobert Watson error = EBUSY; 34995fab37eSRobert Watson break; 35095fab37eSRobert Watson } 35195fab37eSRobert Watson error = mac_policy_register(mpc); 35295fab37eSRobert Watson break; 35395fab37eSRobert Watson case MOD_UNLOAD: 35495fab37eSRobert Watson /* Don't unregister the module if it was never registered. */ 35595fab37eSRobert Watson if ((mpc->mpc_runtime_flags & MPC_RUNTIME_FLAG_REGISTERED) 35695fab37eSRobert Watson != 0) 35795fab37eSRobert Watson error = mac_policy_unregister(mpc); 35895fab37eSRobert Watson else 35995fab37eSRobert Watson error = 0; 36095fab37eSRobert Watson break; 36195fab37eSRobert Watson default: 36295fab37eSRobert Watson break; 36395fab37eSRobert Watson } 36495fab37eSRobert Watson 36595fab37eSRobert Watson return (error); 36695fab37eSRobert Watson } 36795fab37eSRobert Watson 36895fab37eSRobert Watson static int 36995fab37eSRobert Watson mac_policy_register(struct mac_policy_conf *mpc) 37095fab37eSRobert Watson { 37195fab37eSRobert Watson struct mac_policy_conf *tmpc; 37295fab37eSRobert Watson struct mac_policy_op_entry *mpe; 37395fab37eSRobert Watson int slot; 37495fab37eSRobert Watson 375cc51a2b5SRobert Watson MALLOC(mpc->mpc_ops, struct mac_policy_ops *, sizeof(*mpc->mpc_ops), 376cc51a2b5SRobert Watson M_MACOPVEC, M_WAITOK | M_ZERO); 37795fab37eSRobert Watson for (mpe = mpc->mpc_entries; mpe->mpe_constant != MAC_OP_LAST; mpe++) { 37895fab37eSRobert Watson switch (mpe->mpe_constant) { 37995fab37eSRobert Watson case MAC_OP_LAST: 38095fab37eSRobert Watson /* 38195fab37eSRobert Watson * Doesn't actually happen, but this allows checking 38295fab37eSRobert Watson * that all enumerated values are handled. 38395fab37eSRobert Watson */ 38495fab37eSRobert Watson break; 38595fab37eSRobert Watson case MAC_DESTROY: 38695fab37eSRobert Watson mpc->mpc_ops->mpo_destroy = 38795fab37eSRobert Watson mpe->mpe_function; 38895fab37eSRobert Watson break; 38995fab37eSRobert Watson case MAC_INIT: 39095fab37eSRobert Watson mpc->mpc_ops->mpo_init = 39195fab37eSRobert Watson mpe->mpe_function; 39295fab37eSRobert Watson break; 39327f2eac7SRobert Watson case MAC_SYSCALL: 39427f2eac7SRobert Watson mpc->mpc_ops->mpo_syscall = 39527f2eac7SRobert Watson mpe->mpe_function; 39627f2eac7SRobert Watson break; 39796adb909SRobert Watson case MAC_INIT_BPFDESC_LABEL: 39896adb909SRobert Watson mpc->mpc_ops->mpo_init_bpfdesc_label = 39995fab37eSRobert Watson mpe->mpe_function; 40095fab37eSRobert Watson break; 40196adb909SRobert Watson case MAC_INIT_CRED_LABEL: 40296adb909SRobert Watson mpc->mpc_ops->mpo_init_cred_label = 40395fab37eSRobert Watson mpe->mpe_function; 40495fab37eSRobert Watson break; 40596adb909SRobert Watson case MAC_INIT_DEVFSDIRENT_LABEL: 40696adb909SRobert Watson mpc->mpc_ops->mpo_init_devfsdirent_label = 40795fab37eSRobert Watson mpe->mpe_function; 40895fab37eSRobert Watson break; 40996adb909SRobert Watson case MAC_INIT_IFNET_LABEL: 41096adb909SRobert Watson mpc->mpc_ops->mpo_init_ifnet_label = 41195fab37eSRobert Watson mpe->mpe_function; 41295fab37eSRobert Watson break; 41396adb909SRobert Watson case MAC_INIT_IPQ_LABEL: 41496adb909SRobert Watson mpc->mpc_ops->mpo_init_ipq_label = 41595fab37eSRobert Watson mpe->mpe_function; 41695fab37eSRobert Watson break; 41796adb909SRobert Watson case MAC_INIT_MBUF_LABEL: 41896adb909SRobert Watson mpc->mpc_ops->mpo_init_mbuf_label = 41995fab37eSRobert Watson mpe->mpe_function; 42095fab37eSRobert Watson break; 42196adb909SRobert Watson case MAC_INIT_MOUNT_LABEL: 42296adb909SRobert Watson mpc->mpc_ops->mpo_init_mount_label = 42395fab37eSRobert Watson mpe->mpe_function; 42495fab37eSRobert Watson break; 42596adb909SRobert Watson case MAC_INIT_MOUNT_FS_LABEL: 42696adb909SRobert Watson mpc->mpc_ops->mpo_init_mount_fs_label = 42795fab37eSRobert Watson mpe->mpe_function; 42895fab37eSRobert Watson break; 42996adb909SRobert Watson case MAC_INIT_PIPE_LABEL: 43096adb909SRobert Watson mpc->mpc_ops->mpo_init_pipe_label = 43195fab37eSRobert Watson mpe->mpe_function; 43295fab37eSRobert Watson break; 43396adb909SRobert Watson case MAC_INIT_SOCKET_LABEL: 43496adb909SRobert Watson mpc->mpc_ops->mpo_init_socket_label = 43595fab37eSRobert Watson mpe->mpe_function; 43695fab37eSRobert Watson break; 43796adb909SRobert Watson case MAC_INIT_SOCKET_PEER_LABEL: 43896adb909SRobert Watson mpc->mpc_ops->mpo_init_socket_peer_label = 43995fab37eSRobert Watson mpe->mpe_function; 44095fab37eSRobert Watson break; 44196adb909SRobert Watson case MAC_INIT_TEMP_LABEL: 44296adb909SRobert Watson mpc->mpc_ops->mpo_init_temp_label = 44395fab37eSRobert Watson mpe->mpe_function; 44495fab37eSRobert Watson break; 44596adb909SRobert Watson case MAC_INIT_VNODE_LABEL: 44696adb909SRobert Watson mpc->mpc_ops->mpo_init_vnode_label = 44795fab37eSRobert Watson mpe->mpe_function; 44895fab37eSRobert Watson break; 44996adb909SRobert Watson case MAC_DESTROY_BPFDESC_LABEL: 45096adb909SRobert Watson mpc->mpc_ops->mpo_destroy_bpfdesc_label = 45195fab37eSRobert Watson mpe->mpe_function; 45295fab37eSRobert Watson break; 45396adb909SRobert Watson case MAC_DESTROY_CRED_LABEL: 45496adb909SRobert Watson mpc->mpc_ops->mpo_destroy_cred_label = 45595fab37eSRobert Watson mpe->mpe_function; 45695fab37eSRobert Watson break; 45796adb909SRobert Watson case MAC_DESTROY_DEVFSDIRENT_LABEL: 45896adb909SRobert Watson mpc->mpc_ops->mpo_destroy_devfsdirent_label = 45995fab37eSRobert Watson mpe->mpe_function; 46095fab37eSRobert Watson break; 46196adb909SRobert Watson case MAC_DESTROY_IFNET_LABEL: 46296adb909SRobert Watson mpc->mpc_ops->mpo_destroy_ifnet_label = 46395fab37eSRobert Watson mpe->mpe_function; 46495fab37eSRobert Watson break; 46596adb909SRobert Watson case MAC_DESTROY_IPQ_LABEL: 46696adb909SRobert Watson mpc->mpc_ops->mpo_destroy_ipq_label = 46795fab37eSRobert Watson mpe->mpe_function; 46895fab37eSRobert Watson break; 46996adb909SRobert Watson case MAC_DESTROY_MBUF_LABEL: 47096adb909SRobert Watson mpc->mpc_ops->mpo_destroy_mbuf_label = 47195fab37eSRobert Watson mpe->mpe_function; 47295fab37eSRobert Watson break; 47396adb909SRobert Watson case MAC_DESTROY_MOUNT_LABEL: 47496adb909SRobert Watson mpc->mpc_ops->mpo_destroy_mount_label = 47595fab37eSRobert Watson mpe->mpe_function; 47695fab37eSRobert Watson break; 47796adb909SRobert Watson case MAC_DESTROY_MOUNT_FS_LABEL: 47896adb909SRobert Watson mpc->mpc_ops->mpo_destroy_mount_fs_label = 47995fab37eSRobert Watson mpe->mpe_function; 48095fab37eSRobert Watson break; 48196adb909SRobert Watson case MAC_DESTROY_PIPE_LABEL: 48296adb909SRobert Watson mpc->mpc_ops->mpo_destroy_pipe_label = 48396adb909SRobert Watson mpe->mpe_function; 48496adb909SRobert Watson break; 48596adb909SRobert Watson case MAC_DESTROY_SOCKET_LABEL: 48696adb909SRobert Watson mpc->mpc_ops->mpo_destroy_socket_label = 48796adb909SRobert Watson mpe->mpe_function; 48896adb909SRobert Watson break; 48996adb909SRobert Watson case MAC_DESTROY_SOCKET_PEER_LABEL: 49096adb909SRobert Watson mpc->mpc_ops->mpo_destroy_socket_peer_label = 49196adb909SRobert Watson mpe->mpe_function; 49296adb909SRobert Watson break; 49396adb909SRobert Watson case MAC_DESTROY_TEMP_LABEL: 49496adb909SRobert Watson mpc->mpc_ops->mpo_destroy_temp_label = 49596adb909SRobert Watson mpe->mpe_function; 49696adb909SRobert Watson break; 49796adb909SRobert Watson case MAC_DESTROY_VNODE_LABEL: 49896adb909SRobert Watson mpc->mpc_ops->mpo_destroy_vnode_label = 49995fab37eSRobert Watson mpe->mpe_function; 50095fab37eSRobert Watson break; 50195fab37eSRobert Watson case MAC_EXTERNALIZE: 50295fab37eSRobert Watson mpc->mpc_ops->mpo_externalize = 50395fab37eSRobert Watson mpe->mpe_function; 50495fab37eSRobert Watson break; 50595fab37eSRobert Watson case MAC_INTERNALIZE: 50695fab37eSRobert Watson mpc->mpc_ops->mpo_internalize = 50795fab37eSRobert Watson mpe->mpe_function; 50895fab37eSRobert Watson break; 50995fab37eSRobert Watson case MAC_CREATE_DEVFS_DEVICE: 51095fab37eSRobert Watson mpc->mpc_ops->mpo_create_devfs_device = 51195fab37eSRobert Watson mpe->mpe_function; 51295fab37eSRobert Watson break; 51395fab37eSRobert Watson case MAC_CREATE_DEVFS_DIRECTORY: 51495fab37eSRobert Watson mpc->mpc_ops->mpo_create_devfs_directory = 51595fab37eSRobert Watson mpe->mpe_function; 51695fab37eSRobert Watson break; 51795fab37eSRobert Watson case MAC_CREATE_DEVFS_VNODE: 51895fab37eSRobert Watson mpc->mpc_ops->mpo_create_devfs_vnode = 51995fab37eSRobert Watson mpe->mpe_function; 52095fab37eSRobert Watson break; 52195fab37eSRobert Watson case MAC_STDCREATEVNODE_EA: 52295fab37eSRobert Watson mpc->mpc_ops->mpo_stdcreatevnode_ea = 52395fab37eSRobert Watson mpe->mpe_function; 52495fab37eSRobert Watson break; 52595fab37eSRobert Watson case MAC_CREATE_VNODE: 52695fab37eSRobert Watson mpc->mpc_ops->mpo_create_vnode = 52795fab37eSRobert Watson mpe->mpe_function; 52895fab37eSRobert Watson break; 52995fab37eSRobert Watson case MAC_CREATE_MOUNT: 53095fab37eSRobert Watson mpc->mpc_ops->mpo_create_mount = 53195fab37eSRobert Watson mpe->mpe_function; 53295fab37eSRobert Watson break; 53395fab37eSRobert Watson case MAC_CREATE_ROOT_MOUNT: 53495fab37eSRobert Watson mpc->mpc_ops->mpo_create_root_mount = 53595fab37eSRobert Watson mpe->mpe_function; 53695fab37eSRobert Watson break; 53795fab37eSRobert Watson case MAC_RELABEL_VNODE: 53895fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_vnode = 53995fab37eSRobert Watson mpe->mpe_function; 54095fab37eSRobert Watson break; 54195fab37eSRobert Watson case MAC_UPDATE_DEVFSDIRENT: 54295fab37eSRobert Watson mpc->mpc_ops->mpo_update_devfsdirent = 54395fab37eSRobert Watson mpe->mpe_function; 54495fab37eSRobert Watson break; 54595fab37eSRobert Watson case MAC_UPDATE_PROCFSVNODE: 54695fab37eSRobert Watson mpc->mpc_ops->mpo_update_procfsvnode = 54795fab37eSRobert Watson mpe->mpe_function; 54895fab37eSRobert Watson break; 54995fab37eSRobert Watson case MAC_UPDATE_VNODE_FROM_EXTATTR: 55095fab37eSRobert Watson mpc->mpc_ops->mpo_update_vnode_from_extattr = 55195fab37eSRobert Watson mpe->mpe_function; 55295fab37eSRobert Watson break; 55395fab37eSRobert Watson case MAC_UPDATE_VNODE_FROM_EXTERNALIZED: 55495fab37eSRobert Watson mpc->mpc_ops->mpo_update_vnode_from_externalized = 55595fab37eSRobert Watson mpe->mpe_function; 55695fab37eSRobert Watson break; 55795fab37eSRobert Watson case MAC_UPDATE_VNODE_FROM_MOUNT: 55895fab37eSRobert Watson mpc->mpc_ops->mpo_update_vnode_from_mount = 55995fab37eSRobert Watson mpe->mpe_function; 56095fab37eSRobert Watson break; 56195fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_SOCKET: 56295fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_socket = 56395fab37eSRobert Watson mpe->mpe_function; 56495fab37eSRobert Watson break; 56595fab37eSRobert Watson case MAC_CREATE_PIPE: 56695fab37eSRobert Watson mpc->mpc_ops->mpo_create_pipe = 56795fab37eSRobert Watson mpe->mpe_function; 56895fab37eSRobert Watson break; 56995fab37eSRobert Watson case MAC_CREATE_SOCKET: 57095fab37eSRobert Watson mpc->mpc_ops->mpo_create_socket = 57195fab37eSRobert Watson mpe->mpe_function; 57295fab37eSRobert Watson break; 57395fab37eSRobert Watson case MAC_CREATE_SOCKET_FROM_SOCKET: 57495fab37eSRobert Watson mpc->mpc_ops->mpo_create_socket_from_socket = 57595fab37eSRobert Watson mpe->mpe_function; 57695fab37eSRobert Watson break; 57795fab37eSRobert Watson case MAC_RELABEL_PIPE: 57895fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_pipe = 57995fab37eSRobert Watson mpe->mpe_function; 58095fab37eSRobert Watson break; 58195fab37eSRobert Watson case MAC_RELABEL_SOCKET: 58295fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_socket = 58395fab37eSRobert Watson mpe->mpe_function; 58495fab37eSRobert Watson break; 58595fab37eSRobert Watson case MAC_SET_SOCKET_PEER_FROM_MBUF: 58695fab37eSRobert Watson mpc->mpc_ops->mpo_set_socket_peer_from_mbuf = 58795fab37eSRobert Watson mpe->mpe_function; 58895fab37eSRobert Watson break; 58995fab37eSRobert Watson case MAC_SET_SOCKET_PEER_FROM_SOCKET: 59095fab37eSRobert Watson mpc->mpc_ops->mpo_set_socket_peer_from_socket = 59195fab37eSRobert Watson mpe->mpe_function; 59295fab37eSRobert Watson break; 59395fab37eSRobert Watson case MAC_CREATE_BPFDESC: 59495fab37eSRobert Watson mpc->mpc_ops->mpo_create_bpfdesc = 59595fab37eSRobert Watson mpe->mpe_function; 59695fab37eSRobert Watson break; 59795fab37eSRobert Watson case MAC_CREATE_DATAGRAM_FROM_IPQ: 59895fab37eSRobert Watson mpc->mpc_ops->mpo_create_datagram_from_ipq = 59995fab37eSRobert Watson mpe->mpe_function; 60095fab37eSRobert Watson break; 60195fab37eSRobert Watson case MAC_CREATE_FRAGMENT: 60295fab37eSRobert Watson mpc->mpc_ops->mpo_create_fragment = 60395fab37eSRobert Watson mpe->mpe_function; 60495fab37eSRobert Watson break; 60595fab37eSRobert Watson case MAC_CREATE_IFNET: 60695fab37eSRobert Watson mpc->mpc_ops->mpo_create_ifnet = 60795fab37eSRobert Watson mpe->mpe_function; 60895fab37eSRobert Watson break; 60995fab37eSRobert Watson case MAC_CREATE_IPQ: 61095fab37eSRobert Watson mpc->mpc_ops->mpo_create_ipq = 61195fab37eSRobert Watson mpe->mpe_function; 61295fab37eSRobert Watson break; 61395fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_MBUF: 61495fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_mbuf = 61595fab37eSRobert Watson mpe->mpe_function; 61695fab37eSRobert Watson break; 61795fab37eSRobert Watson case MAC_CREATE_MBUF_LINKLAYER: 61895fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_linklayer = 61995fab37eSRobert Watson mpe->mpe_function; 62095fab37eSRobert Watson break; 62195fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_BPFDESC: 62295fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_bpfdesc = 62395fab37eSRobert Watson mpe->mpe_function; 62495fab37eSRobert Watson break; 62595fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_IFNET: 62695fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_ifnet = 62795fab37eSRobert Watson mpe->mpe_function; 62895fab37eSRobert Watson break; 62995fab37eSRobert Watson case MAC_CREATE_MBUF_MULTICAST_ENCAP: 63095fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_multicast_encap = 63195fab37eSRobert Watson mpe->mpe_function; 63295fab37eSRobert Watson break; 63395fab37eSRobert Watson case MAC_CREATE_MBUF_NETLAYER: 63495fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_netlayer = 63595fab37eSRobert Watson mpe->mpe_function; 63695fab37eSRobert Watson break; 63795fab37eSRobert Watson case MAC_FRAGMENT_MATCH: 63895fab37eSRobert Watson mpc->mpc_ops->mpo_fragment_match = 63995fab37eSRobert Watson mpe->mpe_function; 64095fab37eSRobert Watson break; 64195fab37eSRobert Watson case MAC_RELABEL_IFNET: 64295fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_ifnet = 64395fab37eSRobert Watson mpe->mpe_function; 64495fab37eSRobert Watson break; 64595fab37eSRobert Watson case MAC_UPDATE_IPQ: 64695fab37eSRobert Watson mpc->mpc_ops->mpo_update_ipq = 64795fab37eSRobert Watson mpe->mpe_function; 64895fab37eSRobert Watson break; 64995fab37eSRobert Watson case MAC_CREATE_CRED: 65095fab37eSRobert Watson mpc->mpc_ops->mpo_create_cred = 65195fab37eSRobert Watson mpe->mpe_function; 65295fab37eSRobert Watson break; 65395fab37eSRobert Watson case MAC_EXECVE_TRANSITION: 65495fab37eSRobert Watson mpc->mpc_ops->mpo_execve_transition = 65595fab37eSRobert Watson mpe->mpe_function; 65695fab37eSRobert Watson break; 65795fab37eSRobert Watson case MAC_EXECVE_WILL_TRANSITION: 65895fab37eSRobert Watson mpc->mpc_ops->mpo_execve_will_transition = 65995fab37eSRobert Watson mpe->mpe_function; 66095fab37eSRobert Watson break; 66195fab37eSRobert Watson case MAC_CREATE_PROC0: 66295fab37eSRobert Watson mpc->mpc_ops->mpo_create_proc0 = mpe->mpe_function; 66395fab37eSRobert Watson break; 66495fab37eSRobert Watson case MAC_CREATE_PROC1: 66595fab37eSRobert Watson mpc->mpc_ops->mpo_create_proc1 = mpe->mpe_function; 66695fab37eSRobert Watson break; 66795fab37eSRobert Watson case MAC_RELABEL_CRED: 66895fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_cred = 66995fab37eSRobert Watson mpe->mpe_function; 67095fab37eSRobert Watson break; 67192dbb82aSRobert Watson case MAC_THREAD_USERRET: 67292dbb82aSRobert Watson mpc->mpc_ops->mpo_thread_userret = 67392dbb82aSRobert Watson mpe->mpe_function; 67492dbb82aSRobert Watson break; 67595fab37eSRobert Watson case MAC_CHECK_BPFDESC_RECEIVE: 67695fab37eSRobert Watson mpc->mpc_ops->mpo_check_bpfdesc_receive = 67795fab37eSRobert Watson mpe->mpe_function; 67895fab37eSRobert Watson break; 67995fab37eSRobert Watson case MAC_CHECK_CRED_RELABEL: 68095fab37eSRobert Watson mpc->mpc_ops->mpo_check_cred_relabel = 68195fab37eSRobert Watson mpe->mpe_function; 68295fab37eSRobert Watson break; 68395fab37eSRobert Watson case MAC_CHECK_CRED_VISIBLE: 68495fab37eSRobert Watson mpc->mpc_ops->mpo_check_cred_visible = 68595fab37eSRobert Watson mpe->mpe_function; 68695fab37eSRobert Watson break; 68795fab37eSRobert Watson case MAC_CHECK_IFNET_RELABEL: 68895fab37eSRobert Watson mpc->mpc_ops->mpo_check_ifnet_relabel = 68995fab37eSRobert Watson mpe->mpe_function; 69095fab37eSRobert Watson break; 69195fab37eSRobert Watson case MAC_CHECK_IFNET_TRANSMIT: 69295fab37eSRobert Watson mpc->mpc_ops->mpo_check_ifnet_transmit = 69395fab37eSRobert Watson mpe->mpe_function; 69495fab37eSRobert Watson break; 69595fab37eSRobert Watson case MAC_CHECK_MOUNT_STAT: 69695fab37eSRobert Watson mpc->mpc_ops->mpo_check_mount_stat = 69795fab37eSRobert Watson mpe->mpe_function; 69895fab37eSRobert Watson break; 69995fab37eSRobert Watson case MAC_CHECK_PIPE_IOCTL: 70095fab37eSRobert Watson mpc->mpc_ops->mpo_check_pipe_ioctl = 70195fab37eSRobert Watson mpe->mpe_function; 70295fab37eSRobert Watson break; 703c024c3eeSRobert Watson case MAC_CHECK_PIPE_POLL: 704c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_poll = 705c024c3eeSRobert Watson mpe->mpe_function; 706c024c3eeSRobert Watson break; 707c024c3eeSRobert Watson case MAC_CHECK_PIPE_READ: 708c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_read = 70995fab37eSRobert Watson mpe->mpe_function; 71095fab37eSRobert Watson break; 71195fab37eSRobert Watson case MAC_CHECK_PIPE_RELABEL: 71295fab37eSRobert Watson mpc->mpc_ops->mpo_check_pipe_relabel = 71395fab37eSRobert Watson mpe->mpe_function; 71495fab37eSRobert Watson break; 715c024c3eeSRobert Watson case MAC_CHECK_PIPE_STAT: 716c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_stat = 717c024c3eeSRobert Watson mpe->mpe_function; 718c024c3eeSRobert Watson break; 719c024c3eeSRobert Watson case MAC_CHECK_PIPE_WRITE: 720c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_write = 721c024c3eeSRobert Watson mpe->mpe_function; 722c024c3eeSRobert Watson break; 72395fab37eSRobert Watson case MAC_CHECK_PROC_DEBUG: 72495fab37eSRobert Watson mpc->mpc_ops->mpo_check_proc_debug = 72595fab37eSRobert Watson mpe->mpe_function; 72695fab37eSRobert Watson break; 72795fab37eSRobert Watson case MAC_CHECK_PROC_SCHED: 72895fab37eSRobert Watson mpc->mpc_ops->mpo_check_proc_sched = 72995fab37eSRobert Watson mpe->mpe_function; 73095fab37eSRobert Watson break; 73195fab37eSRobert Watson case MAC_CHECK_PROC_SIGNAL: 73295fab37eSRobert Watson mpc->mpc_ops->mpo_check_proc_signal = 73395fab37eSRobert Watson mpe->mpe_function; 73495fab37eSRobert Watson break; 73595fab37eSRobert Watson case MAC_CHECK_SOCKET_BIND: 73695fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_bind = 73795fab37eSRobert Watson mpe->mpe_function; 73895fab37eSRobert Watson break; 73995fab37eSRobert Watson case MAC_CHECK_SOCKET_CONNECT: 74095fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_connect = 74195fab37eSRobert Watson mpe->mpe_function; 74295fab37eSRobert Watson break; 743d61198e4SRobert Watson case MAC_CHECK_SOCKET_DELIVER: 744d61198e4SRobert Watson mpc->mpc_ops->mpo_check_socket_deliver = 74595fab37eSRobert Watson mpe->mpe_function; 74695fab37eSRobert Watson break; 747d61198e4SRobert Watson case MAC_CHECK_SOCKET_LISTEN: 748d61198e4SRobert Watson mpc->mpc_ops->mpo_check_socket_listen = 74995fab37eSRobert Watson mpe->mpe_function; 75095fab37eSRobert Watson break; 75195fab37eSRobert Watson case MAC_CHECK_SOCKET_RELABEL: 75295fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_relabel = 75395fab37eSRobert Watson mpe->mpe_function; 75495fab37eSRobert Watson break; 75595fab37eSRobert Watson case MAC_CHECK_SOCKET_VISIBLE: 75695fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_visible = 75795fab37eSRobert Watson mpe->mpe_function; 75895fab37eSRobert Watson break; 75995fab37eSRobert Watson case MAC_CHECK_VNODE_ACCESS: 76095fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_access = 76195fab37eSRobert Watson mpe->mpe_function; 76295fab37eSRobert Watson break; 76395fab37eSRobert Watson case MAC_CHECK_VNODE_CHDIR: 76495fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_chdir = 76595fab37eSRobert Watson mpe->mpe_function; 76695fab37eSRobert Watson break; 76795fab37eSRobert Watson case MAC_CHECK_VNODE_CHROOT: 76895fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_chroot = 76995fab37eSRobert Watson mpe->mpe_function; 77095fab37eSRobert Watson break; 77195fab37eSRobert Watson case MAC_CHECK_VNODE_CREATE: 77295fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_create = 77395fab37eSRobert Watson mpe->mpe_function; 77495fab37eSRobert Watson break; 77595fab37eSRobert Watson case MAC_CHECK_VNODE_DELETE: 77695fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_delete = 77795fab37eSRobert Watson mpe->mpe_function; 77895fab37eSRobert Watson break; 77995fab37eSRobert Watson case MAC_CHECK_VNODE_DELETEACL: 78095fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_deleteacl = 78195fab37eSRobert Watson mpe->mpe_function; 78295fab37eSRobert Watson break; 78395fab37eSRobert Watson case MAC_CHECK_VNODE_EXEC: 78495fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_exec = 78595fab37eSRobert Watson mpe->mpe_function; 78695fab37eSRobert Watson break; 78795fab37eSRobert Watson case MAC_CHECK_VNODE_GETACL: 78895fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_getacl = 78995fab37eSRobert Watson mpe->mpe_function; 79095fab37eSRobert Watson break; 79195fab37eSRobert Watson case MAC_CHECK_VNODE_GETEXTATTR: 79295fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_getextattr = 79395fab37eSRobert Watson mpe->mpe_function; 79495fab37eSRobert Watson break; 79595fab37eSRobert Watson case MAC_CHECK_VNODE_LOOKUP: 79695fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_lookup = 79795fab37eSRobert Watson mpe->mpe_function; 79895fab37eSRobert Watson break; 79995fab37eSRobert Watson case MAC_CHECK_VNODE_MMAP_PERMS: 80095fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_mmap_perms = 80195fab37eSRobert Watson mpe->mpe_function; 80295fab37eSRobert Watson break; 80395fab37eSRobert Watson case MAC_CHECK_VNODE_OPEN: 80495fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_open = 80595fab37eSRobert Watson mpe->mpe_function; 80695fab37eSRobert Watson break; 8077f724f8bSRobert Watson case MAC_CHECK_VNODE_POLL: 8087f724f8bSRobert Watson mpc->mpc_ops->mpo_check_vnode_poll = 8097f724f8bSRobert Watson mpe->mpe_function; 8107f724f8bSRobert Watson break; 8117f724f8bSRobert Watson case MAC_CHECK_VNODE_READ: 8127f724f8bSRobert Watson mpc->mpc_ops->mpo_check_vnode_read = 8137f724f8bSRobert Watson mpe->mpe_function; 8147f724f8bSRobert Watson break; 81595fab37eSRobert Watson case MAC_CHECK_VNODE_READDIR: 81695fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_readdir = 81795fab37eSRobert Watson mpe->mpe_function; 81895fab37eSRobert Watson break; 81995fab37eSRobert Watson case MAC_CHECK_VNODE_READLINK: 82095fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_readlink = 82195fab37eSRobert Watson mpe->mpe_function; 82295fab37eSRobert Watson break; 82395fab37eSRobert Watson case MAC_CHECK_VNODE_RELABEL: 82495fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_relabel = 82595fab37eSRobert Watson mpe->mpe_function; 82695fab37eSRobert Watson break; 82795fab37eSRobert Watson case MAC_CHECK_VNODE_RENAME_FROM: 82895fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_rename_from = 82995fab37eSRobert Watson mpe->mpe_function; 83095fab37eSRobert Watson break; 83195fab37eSRobert Watson case MAC_CHECK_VNODE_RENAME_TO: 83295fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_rename_to = 83395fab37eSRobert Watson mpe->mpe_function; 83495fab37eSRobert Watson break; 83595fab37eSRobert Watson case MAC_CHECK_VNODE_REVOKE: 83695fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_revoke = 83795fab37eSRobert Watson mpe->mpe_function; 83895fab37eSRobert Watson break; 83995fab37eSRobert Watson case MAC_CHECK_VNODE_SETACL: 84095fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setacl = 84195fab37eSRobert Watson mpe->mpe_function; 84295fab37eSRobert Watson break; 84395fab37eSRobert Watson case MAC_CHECK_VNODE_SETEXTATTR: 84495fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setextattr = 84595fab37eSRobert Watson mpe->mpe_function; 84695fab37eSRobert Watson break; 84795fab37eSRobert Watson case MAC_CHECK_VNODE_SETFLAGS: 84895fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setflags = 84995fab37eSRobert Watson mpe->mpe_function; 85095fab37eSRobert Watson break; 85195fab37eSRobert Watson case MAC_CHECK_VNODE_SETMODE: 85295fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setmode = 85395fab37eSRobert Watson mpe->mpe_function; 85495fab37eSRobert Watson break; 85595fab37eSRobert Watson case MAC_CHECK_VNODE_SETOWNER: 85695fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setowner = 85795fab37eSRobert Watson mpe->mpe_function; 85895fab37eSRobert Watson break; 85995fab37eSRobert Watson case MAC_CHECK_VNODE_SETUTIMES: 86095fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setutimes = 86195fab37eSRobert Watson mpe->mpe_function; 86295fab37eSRobert Watson break; 86395fab37eSRobert Watson case MAC_CHECK_VNODE_STAT: 86495fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_stat = 86595fab37eSRobert Watson mpe->mpe_function; 86695fab37eSRobert Watson break; 8677f724f8bSRobert Watson case MAC_CHECK_VNODE_WRITE: 8687f724f8bSRobert Watson mpc->mpc_ops->mpo_check_vnode_write = 8697f724f8bSRobert Watson mpe->mpe_function; 8707f724f8bSRobert Watson break; 87195fab37eSRobert Watson /* 87295fab37eSRobert Watson default: 87395fab37eSRobert Watson printf("MAC policy `%s': unknown operation %d\n", 87495fab37eSRobert Watson mpc->mpc_name, mpe->mpe_constant); 87595fab37eSRobert Watson return (EINVAL); 87695fab37eSRobert Watson */ 87795fab37eSRobert Watson } 87895fab37eSRobert Watson } 87995fab37eSRobert Watson MAC_POLICY_LIST_LOCK(); 88095fab37eSRobert Watson if (mac_policy_list_busy > 0) { 88195fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 88295fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 88395fab37eSRobert Watson mpc->mpc_ops = NULL; 88495fab37eSRobert Watson return (EBUSY); 88595fab37eSRobert Watson } 88695fab37eSRobert Watson LIST_FOREACH(tmpc, &mac_policy_list, mpc_list) { 88795fab37eSRobert Watson if (strcmp(tmpc->mpc_name, mpc->mpc_name) == 0) { 88895fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 88995fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 89095fab37eSRobert Watson mpc->mpc_ops = NULL; 89195fab37eSRobert Watson return (EEXIST); 89295fab37eSRobert Watson } 89395fab37eSRobert Watson } 89495fab37eSRobert Watson if (mpc->mpc_field_off != NULL) { 89595fab37eSRobert Watson slot = ffs(mac_policy_offsets_free); 89695fab37eSRobert Watson if (slot == 0) { 89795fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 89895fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 89995fab37eSRobert Watson mpc->mpc_ops = NULL; 90095fab37eSRobert Watson return (ENOMEM); 90195fab37eSRobert Watson } 90295fab37eSRobert Watson slot--; 90395fab37eSRobert Watson mac_policy_offsets_free &= ~(1 << slot); 90495fab37eSRobert Watson *mpc->mpc_field_off = slot; 90595fab37eSRobert Watson } 90695fab37eSRobert Watson mpc->mpc_runtime_flags |= MPC_RUNTIME_FLAG_REGISTERED; 90795fab37eSRobert Watson LIST_INSERT_HEAD(&mac_policy_list, mpc, mpc_list); 90895fab37eSRobert Watson 90995fab37eSRobert Watson /* Per-policy initialization. */ 91095fab37eSRobert Watson if (mpc->mpc_ops->mpo_init != NULL) 91195fab37eSRobert Watson (*(mpc->mpc_ops->mpo_init))(mpc); 91295fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 91395fab37eSRobert Watson 91495fab37eSRobert Watson printf("Security policy loaded: %s (%s)\n", mpc->mpc_fullname, 91595fab37eSRobert Watson mpc->mpc_name); 91695fab37eSRobert Watson 91795fab37eSRobert Watson return (0); 91895fab37eSRobert Watson } 91995fab37eSRobert Watson 92095fab37eSRobert Watson static int 92195fab37eSRobert Watson mac_policy_unregister(struct mac_policy_conf *mpc) 92295fab37eSRobert Watson { 92395fab37eSRobert Watson 92495fab37eSRobert Watson #if 0 92595fab37eSRobert Watson /* 92695fab37eSRobert Watson * Don't allow unloading modules with private data. 92795fab37eSRobert Watson */ 92895fab37eSRobert Watson if (mpc->mpc_field_off != NULL) 92995fab37eSRobert Watson return (EBUSY); 93095fab37eSRobert Watson #endif 93195fab37eSRobert Watson if ((mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_UNLOADOK) == 0) 93295fab37eSRobert Watson return (EBUSY); 93395fab37eSRobert Watson MAC_POLICY_LIST_LOCK(); 93495fab37eSRobert Watson if (mac_policy_list_busy > 0) { 93595fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 93695fab37eSRobert Watson return (EBUSY); 93795fab37eSRobert Watson } 93895fab37eSRobert Watson if (mpc->mpc_ops->mpo_destroy != NULL) 93995fab37eSRobert Watson (*(mpc->mpc_ops->mpo_destroy))(mpc); 94095fab37eSRobert Watson 94195fab37eSRobert Watson LIST_REMOVE(mpc, mpc_list); 94295fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 94395fab37eSRobert Watson 94495fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 94595fab37eSRobert Watson mpc->mpc_ops = NULL; 94695fab37eSRobert Watson 94795fab37eSRobert Watson printf("Security policy unload: %s (%s)\n", mpc->mpc_fullname, 94895fab37eSRobert Watson mpc->mpc_name); 94995fab37eSRobert Watson 95095fab37eSRobert Watson return (0); 95195fab37eSRobert Watson } 95295fab37eSRobert Watson 95395fab37eSRobert Watson /* 95495fab37eSRobert Watson * Define an error value precedence, and given two arguments, selects the 95595fab37eSRobert Watson * value with the higher precedence. 95695fab37eSRobert Watson */ 95795fab37eSRobert Watson static int 95895fab37eSRobert Watson error_select(int error1, int error2) 95995fab37eSRobert Watson { 96095fab37eSRobert Watson 96195fab37eSRobert Watson /* Certain decision-making errors take top priority. */ 96295fab37eSRobert Watson if (error1 == EDEADLK || error2 == EDEADLK) 96395fab37eSRobert Watson return (EDEADLK); 96495fab37eSRobert Watson 96595fab37eSRobert Watson /* Invalid arguments should be reported where possible. */ 96695fab37eSRobert Watson if (error1 == EINVAL || error2 == EINVAL) 96795fab37eSRobert Watson return (EINVAL); 96895fab37eSRobert Watson 96995fab37eSRobert Watson /* Precedence goes to "visibility", with both process and file. */ 97095fab37eSRobert Watson if (error1 == ESRCH || error2 == ESRCH) 97195fab37eSRobert Watson return (ESRCH); 97295fab37eSRobert Watson 97395fab37eSRobert Watson if (error1 == ENOENT || error2 == ENOENT) 97495fab37eSRobert Watson return (ENOENT); 97595fab37eSRobert Watson 97695fab37eSRobert Watson /* Precedence goes to DAC/MAC protections. */ 97795fab37eSRobert Watson if (error1 == EACCES || error2 == EACCES) 97895fab37eSRobert Watson return (EACCES); 97995fab37eSRobert Watson 98095fab37eSRobert Watson /* Precedence goes to privilege. */ 98195fab37eSRobert Watson if (error1 == EPERM || error2 == EPERM) 98295fab37eSRobert Watson return (EPERM); 98395fab37eSRobert Watson 98495fab37eSRobert Watson /* Precedence goes to error over success; otherwise, arbitrary. */ 98595fab37eSRobert Watson if (error1 != 0) 98695fab37eSRobert Watson return (error1); 98795fab37eSRobert Watson return (error2); 98895fab37eSRobert Watson } 98995fab37eSRobert Watson 99095fab37eSRobert Watson void 99195fab37eSRobert Watson mac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp) 99295fab37eSRobert Watson { 99395fab37eSRobert Watson 99495fab37eSRobert Watson MAC_PERFORM(update_devfsdirent, de, &de->de_label, vp, &vp->v_label); 99595fab37eSRobert Watson } 99695fab37eSRobert Watson 99795fab37eSRobert Watson void 99895fab37eSRobert Watson mac_update_procfsvnode(struct vnode *vp, struct ucred *cred) 99995fab37eSRobert Watson { 100095fab37eSRobert Watson 100195fab37eSRobert Watson MAC_PERFORM(update_procfsvnode, vp, &vp->v_label, cred); 100295fab37eSRobert Watson } 100395fab37eSRobert Watson 100495fab37eSRobert Watson /* 100595fab37eSRobert Watson * Support callout for policies that manage their own externalization 100695fab37eSRobert Watson * using extended attributes. 100795fab37eSRobert Watson */ 100895fab37eSRobert Watson static int 100995fab37eSRobert Watson mac_update_vnode_from_extattr(struct vnode *vp, struct mount *mp) 101095fab37eSRobert Watson { 101195fab37eSRobert Watson int error; 101295fab37eSRobert Watson 101395fab37eSRobert Watson MAC_CHECK(update_vnode_from_extattr, vp, &vp->v_label, mp, 101495fab37eSRobert Watson &mp->mnt_fslabel); 101595fab37eSRobert Watson 101695fab37eSRobert Watson return (error); 101795fab37eSRobert Watson } 101895fab37eSRobert Watson 101995fab37eSRobert Watson /* 102095fab37eSRobert Watson * Given an externalized mac label, internalize it and stamp it on a 102195fab37eSRobert Watson * vnode. 102295fab37eSRobert Watson */ 102395fab37eSRobert Watson static int 102495fab37eSRobert Watson mac_update_vnode_from_externalized(struct vnode *vp, struct mac *extmac) 102595fab37eSRobert Watson { 102695fab37eSRobert Watson int error; 102795fab37eSRobert Watson 102895fab37eSRobert Watson MAC_CHECK(update_vnode_from_externalized, vp, &vp->v_label, extmac); 102995fab37eSRobert Watson 103095fab37eSRobert Watson return (error); 103195fab37eSRobert Watson } 103295fab37eSRobert Watson 103395fab37eSRobert Watson /* 103495fab37eSRobert Watson * Call out to individual policies to update the label in a vnode from 103595fab37eSRobert Watson * the mountpoint. 103695fab37eSRobert Watson */ 103795fab37eSRobert Watson void 103895fab37eSRobert Watson mac_update_vnode_from_mount(struct vnode *vp, struct mount *mp) 103995fab37eSRobert Watson { 104095fab37eSRobert Watson 104195fab37eSRobert Watson MAC_PERFORM(update_vnode_from_mount, vp, &vp->v_label, mp, 104295fab37eSRobert Watson &mp->mnt_fslabel); 104395fab37eSRobert Watson 1044e6e370a7SJeff Roberson ASSERT_VOP_LOCKED(vp, "mac_update_vnode_from_mount"); 104595fab37eSRobert Watson if (mac_cache_fslabel_in_vnode) 1046e6e370a7SJeff Roberson vp->v_vflag |= VV_CACHEDLABEL; 104795fab37eSRobert Watson } 104895fab37eSRobert Watson 104995fab37eSRobert Watson /* 105095fab37eSRobert Watson * Implementation of VOP_REFRESHLABEL() that relies on extended attributes 105195fab37eSRobert Watson * to store label data. Can be referenced by filesystems supporting 105295fab37eSRobert Watson * extended attributes. 105395fab37eSRobert Watson */ 105495fab37eSRobert Watson int 105595fab37eSRobert Watson vop_stdrefreshlabel_ea(struct vop_refreshlabel_args *ap) 105695fab37eSRobert Watson { 105795fab37eSRobert Watson struct vnode *vp = ap->a_vp; 105895fab37eSRobert Watson struct mac extmac; 105995fab37eSRobert Watson int buflen, error; 106095fab37eSRobert Watson 106195fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "vop_stdrefreshlabel_ea"); 106295fab37eSRobert Watson 106395fab37eSRobert Watson /* 106495fab37eSRobert Watson * Call out to external policies first. Order doesn't really 106595fab37eSRobert Watson * matter, as long as failure of one assures failure of all. 106695fab37eSRobert Watson */ 106795fab37eSRobert Watson error = mac_update_vnode_from_extattr(vp, vp->v_mount); 106895fab37eSRobert Watson if (error) 106995fab37eSRobert Watson return (error); 107095fab37eSRobert Watson 107195fab37eSRobert Watson buflen = sizeof(extmac); 107295fab37eSRobert Watson error = vn_extattr_get(vp, IO_NODELOCKED, 107395fab37eSRobert Watson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, &buflen, 107495fab37eSRobert Watson (char *)&extmac, curthread); 107595fab37eSRobert Watson switch (error) { 107695fab37eSRobert Watson case 0: 107795fab37eSRobert Watson /* Got it */ 107895fab37eSRobert Watson break; 107995fab37eSRobert Watson 108095fab37eSRobert Watson case ENOATTR: 108195fab37eSRobert Watson /* 108295fab37eSRobert Watson * Use the label from the mount point. 108395fab37eSRobert Watson */ 108495fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 108595fab37eSRobert Watson return (0); 108695fab37eSRobert Watson 108795fab37eSRobert Watson case EOPNOTSUPP: 108895fab37eSRobert Watson default: 108995fab37eSRobert Watson /* Fail horribly. */ 109095fab37eSRobert Watson return (error); 109195fab37eSRobert Watson } 109295fab37eSRobert Watson 109395fab37eSRobert Watson if (buflen != sizeof(extmac)) 109495fab37eSRobert Watson error = EPERM; /* Fail very closed. */ 109595fab37eSRobert Watson if (error == 0) 109695fab37eSRobert Watson error = mac_update_vnode_from_externalized(vp, &extmac); 109795fab37eSRobert Watson if (error == 0) 1098e6e370a7SJeff Roberson vp->v_vflag |= VV_CACHEDLABEL; 109995fab37eSRobert Watson else { 110095fab37eSRobert Watson struct vattr va; 110195fab37eSRobert Watson 110295fab37eSRobert Watson printf("Corrupted label on %s", 110395fab37eSRobert Watson vp->v_mount->mnt_stat.f_mntonname); 110495fab37eSRobert Watson if (VOP_GETATTR(vp, &va, curthread->td_ucred, curthread) == 0) 110595fab37eSRobert Watson printf(" inum %ld", va.va_fileid); 11066be0c25eSRobert Watson #ifdef MAC_DEBUG 110795fab37eSRobert Watson if (mac_debug_label_fallback) { 110895fab37eSRobert Watson printf(", falling back.\n"); 110995fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 111095fab37eSRobert Watson error = 0; 111195fab37eSRobert Watson } else { 11126be0c25eSRobert Watson #endif 111395fab37eSRobert Watson printf(".\n"); 111495fab37eSRobert Watson error = EPERM; 11156be0c25eSRobert Watson #ifdef MAC_DEBUG 111695fab37eSRobert Watson } 11176be0c25eSRobert Watson #endif 111895fab37eSRobert Watson } 111995fab37eSRobert Watson 112095fab37eSRobert Watson return (error); 112195fab37eSRobert Watson } 112295fab37eSRobert Watson 112395fab37eSRobert Watson /* 112495fab37eSRobert Watson * Make sure the vnode label is up-to-date. If EOPNOTSUPP, then we handle 112595fab37eSRobert Watson * the labeling activity outselves. Filesystems should be careful not 112695fab37eSRobert Watson * to change their minds regarding whether they support vop_refreshlabel() 112795fab37eSRobert Watson * for a vnode or not. Don't cache the vnode here, allow the file 112895fab37eSRobert Watson * system code to determine if it's safe to cache. If we update from 112995fab37eSRobert Watson * the mount, don't cache since a change to the mount label should affect 113095fab37eSRobert Watson * all vnodes. 113195fab37eSRobert Watson */ 113295fab37eSRobert Watson static int 113395fab37eSRobert Watson vn_refreshlabel(struct vnode *vp, struct ucred *cred) 113495fab37eSRobert Watson { 113595fab37eSRobert Watson int error; 113695fab37eSRobert Watson 113795fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "vn_refreshlabel"); 113895fab37eSRobert Watson 113995fab37eSRobert Watson if (vp->v_mount == NULL) { 114095fab37eSRobert Watson /* 114195fab37eSRobert Watson Eventually, we probably want to special-case refreshing 114295fab37eSRobert Watson of deadfs vnodes, and if there's a lock-free race somewhere, 114395fab37eSRobert Watson that case might be handled here. 114495fab37eSRobert Watson 114595fab37eSRobert Watson mac_update_vnode_deadfs(vp); 114695fab37eSRobert Watson return (0); 114795fab37eSRobert Watson */ 114895fab37eSRobert Watson /* printf("vn_refreshlabel: null v_mount\n"); */ 114906be2aaaSNate Lawson if (vp->v_type != VNON) 115095fab37eSRobert Watson printf( 115106be2aaaSNate Lawson "vn_refreshlabel: null v_mount with non-VNON\n"); 115295fab37eSRobert Watson return (EBADF); 115395fab37eSRobert Watson } 115495fab37eSRobert Watson 1155e6e370a7SJeff Roberson if (vp->v_vflag & VV_CACHEDLABEL) { 115695fab37eSRobert Watson mac_vnode_label_cache_hits++; 115795fab37eSRobert Watson return (0); 115895fab37eSRobert Watson } else 115995fab37eSRobert Watson mac_vnode_label_cache_misses++; 116095fab37eSRobert Watson 116195fab37eSRobert Watson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 116295fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 116395fab37eSRobert Watson return (0); 116495fab37eSRobert Watson } 116595fab37eSRobert Watson 116695fab37eSRobert Watson error = VOP_REFRESHLABEL(vp, cred, curthread); 116795fab37eSRobert Watson switch (error) { 116895fab37eSRobert Watson case EOPNOTSUPP: 116995fab37eSRobert Watson /* 117095fab37eSRobert Watson * If labels are not supported on this vnode, fall back to 117195fab37eSRobert Watson * the label in the mount and propagate it to the vnode. 117295fab37eSRobert Watson * There should probably be some sort of policy/flag/decision 117395fab37eSRobert Watson * about doing this. 117495fab37eSRobert Watson */ 117595fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 117695fab37eSRobert Watson error = 0; 117795fab37eSRobert Watson default: 117895fab37eSRobert Watson return (error); 117995fab37eSRobert Watson } 118095fab37eSRobert Watson } 118195fab37eSRobert Watson 118295fab37eSRobert Watson /* 118395fab37eSRobert Watson * Helper function for file systems using the vop_std*_ea() calls. This 118495fab37eSRobert Watson * function must be called after EA service is available for the vnode, 118595fab37eSRobert Watson * but before it's hooked up to the namespace so that the node persists 118695fab37eSRobert Watson * if there's a crash, or before it can be accessed. On successful 118795fab37eSRobert Watson * commit of the label to disk (etc), do cache the label. 118895fab37eSRobert Watson */ 118995fab37eSRobert Watson int 119095fab37eSRobert Watson vop_stdcreatevnode_ea(struct vnode *dvp, struct vnode *tvp, struct ucred *cred) 119195fab37eSRobert Watson { 119295fab37eSRobert Watson struct mac extmac; 119395fab37eSRobert Watson int error; 119495fab37eSRobert Watson 1195e6e370a7SJeff Roberson ASSERT_VOP_LOCKED(tvp, "vop_stdcreatevnode_ea"); 119695fab37eSRobert Watson if ((dvp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 119795fab37eSRobert Watson mac_update_vnode_from_mount(tvp, tvp->v_mount); 119895fab37eSRobert Watson } else { 119995fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 120095fab37eSRobert Watson if (error) 120195fab37eSRobert Watson return (error); 120295fab37eSRobert Watson 120395fab37eSRobert Watson /* 120495fab37eSRobert Watson * Stick the label in the vnode. Then try to write to 120595fab37eSRobert Watson * disk. If we fail, return a failure to abort the 120695fab37eSRobert Watson * create operation. Really, this failure shouldn't 120795fab37eSRobert Watson * happen except in fairly unusual circumstances (out 120895fab37eSRobert Watson * of disk, etc). 120995fab37eSRobert Watson */ 121095fab37eSRobert Watson mac_create_vnode(cred, dvp, tvp); 121195fab37eSRobert Watson 121295fab37eSRobert Watson error = mac_stdcreatevnode_ea(tvp); 121395fab37eSRobert Watson if (error) 121495fab37eSRobert Watson return (error); 121595fab37eSRobert Watson 121695fab37eSRobert Watson /* 121795fab37eSRobert Watson * XXX: Eventually this will go away and all policies will 121895fab37eSRobert Watson * directly manage their extended attributes. 121995fab37eSRobert Watson */ 122095fab37eSRobert Watson error = mac_externalize(&tvp->v_label, &extmac); 122195fab37eSRobert Watson if (error) 122295fab37eSRobert Watson return (error); 122395fab37eSRobert Watson 122495fab37eSRobert Watson error = vn_extattr_set(tvp, IO_NODELOCKED, 122595fab37eSRobert Watson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 122695fab37eSRobert Watson sizeof(extmac), (char *)&extmac, curthread); 122795fab37eSRobert Watson if (error == 0) 1228e6e370a7SJeff Roberson tvp->v_vflag |= VV_CACHEDLABEL; 122995fab37eSRobert Watson else { 123095fab37eSRobert Watson #if 0 123195fab37eSRobert Watson /* 123295fab37eSRobert Watson * In theory, we could have fall-back behavior here. 123395fab37eSRobert Watson * It would probably be incorrect. 123495fab37eSRobert Watson */ 123595fab37eSRobert Watson #endif 123695fab37eSRobert Watson return (error); 123795fab37eSRobert Watson } 123895fab37eSRobert Watson } 123995fab37eSRobert Watson 124095fab37eSRobert Watson return (0); 124195fab37eSRobert Watson } 124295fab37eSRobert Watson 124395fab37eSRobert Watson void 124495fab37eSRobert Watson mac_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp) 124595fab37eSRobert Watson { 124695fab37eSRobert Watson int error; 124795fab37eSRobert Watson 124895fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_execve_transition"); 124995fab37eSRobert Watson 125095fab37eSRobert Watson error = vn_refreshlabel(vp, old); 125195fab37eSRobert Watson if (error) { 125295fab37eSRobert Watson printf("mac_execve_transition: vn_refreshlabel returned %d\n", 125395fab37eSRobert Watson error); 125495fab37eSRobert Watson printf("mac_execve_transition: using old vnode label\n"); 125595fab37eSRobert Watson } 125695fab37eSRobert Watson 125795fab37eSRobert Watson MAC_PERFORM(execve_transition, old, new, vp, &vp->v_label); 125895fab37eSRobert Watson } 125995fab37eSRobert Watson 126095fab37eSRobert Watson int 126195fab37eSRobert Watson mac_execve_will_transition(struct ucred *old, struct vnode *vp) 126295fab37eSRobert Watson { 126395fab37eSRobert Watson int error, result; 126495fab37eSRobert Watson 126595fab37eSRobert Watson error = vn_refreshlabel(vp, old); 126695fab37eSRobert Watson if (error) 126795fab37eSRobert Watson return (error); 126895fab37eSRobert Watson 126995fab37eSRobert Watson result = 0; 127095fab37eSRobert Watson MAC_BOOLEAN(execve_will_transition, ||, old, vp, &vp->v_label); 127195fab37eSRobert Watson 127295fab37eSRobert Watson return (result); 127395fab37eSRobert Watson } 127495fab37eSRobert Watson 127595fab37eSRobert Watson static void 127695fab37eSRobert Watson mac_init_label(struct label *label) 127795fab37eSRobert Watson { 127895fab37eSRobert Watson 127995fab37eSRobert Watson bzero(label, sizeof(*label)); 128095fab37eSRobert Watson label->l_flags = MAC_FLAG_INITIALIZED; 128195fab37eSRobert Watson } 128295fab37eSRobert Watson 128395fab37eSRobert Watson static void 128495fab37eSRobert Watson mac_init_structmac(struct mac *mac) 128595fab37eSRobert Watson { 128695fab37eSRobert Watson 128795fab37eSRobert Watson bzero(mac, sizeof(*mac)); 128895fab37eSRobert Watson mac->m_macflags = MAC_FLAG_INITIALIZED; 128995fab37eSRobert Watson } 129095fab37eSRobert Watson 129195fab37eSRobert Watson static void 129295fab37eSRobert Watson mac_destroy_label(struct label *label) 129395fab37eSRobert Watson { 129495fab37eSRobert Watson 129595fab37eSRobert Watson KASSERT(label->l_flags & MAC_FLAG_INITIALIZED, 129695fab37eSRobert Watson ("destroying uninitialized label")); 129795fab37eSRobert Watson 129895fab37eSRobert Watson bzero(label, sizeof(*label)); 129995fab37eSRobert Watson /* implicit: label->l_flags &= ~MAC_FLAG_INITIALIZED; */ 130095fab37eSRobert Watson } 130195fab37eSRobert Watson 130295fab37eSRobert Watson int 130395fab37eSRobert Watson mac_init_mbuf(struct mbuf *m, int how) 130495fab37eSRobert Watson { 130595fab37eSRobert Watson KASSERT(m->m_flags & M_PKTHDR, ("mac_init_mbuf on non-header mbuf")); 130695fab37eSRobert Watson 130795fab37eSRobert Watson /* "how" is one of M_(TRY|DONT)WAIT */ 130895fab37eSRobert Watson mac_init_label(&m->m_pkthdr.label); 130996adb909SRobert Watson MAC_PERFORM(init_mbuf_label, &m->m_pkthdr.label, how); 1310f050add5SRobert Watson #ifdef MAC_DEBUG 131195fab37eSRobert Watson atomic_add_int(&nmacmbufs, 1); 1312f050add5SRobert Watson #endif 131395fab37eSRobert Watson return (0); 131495fab37eSRobert Watson } 131595fab37eSRobert Watson 131695fab37eSRobert Watson void 131795fab37eSRobert Watson mac_destroy_mbuf(struct mbuf *m) 131895fab37eSRobert Watson { 131995fab37eSRobert Watson 132096adb909SRobert Watson MAC_PERFORM(destroy_mbuf_label, &m->m_pkthdr.label); 132195fab37eSRobert Watson mac_destroy_label(&m->m_pkthdr.label); 1322f050add5SRobert Watson #ifdef MAC_DEBUG 132395fab37eSRobert Watson atomic_subtract_int(&nmacmbufs, 1); 1324f050add5SRobert Watson #endif 132595fab37eSRobert Watson } 132695fab37eSRobert Watson 132795fab37eSRobert Watson void 132895fab37eSRobert Watson mac_init_cred(struct ucred *cr) 132995fab37eSRobert Watson { 133095fab37eSRobert Watson 133195fab37eSRobert Watson mac_init_label(&cr->cr_label); 133296adb909SRobert Watson MAC_PERFORM(init_cred_label, &cr->cr_label); 1333f050add5SRobert Watson #ifdef MAC_DEBUG 133495fab37eSRobert Watson atomic_add_int(&nmaccreds, 1); 1335f050add5SRobert Watson #endif 133695fab37eSRobert Watson } 133795fab37eSRobert Watson 133895fab37eSRobert Watson void 133995fab37eSRobert Watson mac_destroy_cred(struct ucred *cr) 134095fab37eSRobert Watson { 134195fab37eSRobert Watson 134296adb909SRobert Watson MAC_PERFORM(destroy_cred_label, &cr->cr_label); 134395fab37eSRobert Watson mac_destroy_label(&cr->cr_label); 1344f050add5SRobert Watson #ifdef MAC_DEBUG 134595fab37eSRobert Watson atomic_subtract_int(&nmaccreds, 1); 1346f050add5SRobert Watson #endif 134795fab37eSRobert Watson } 134895fab37eSRobert Watson 134995fab37eSRobert Watson void 135095fab37eSRobert Watson mac_init_ifnet(struct ifnet *ifp) 135195fab37eSRobert Watson { 135295fab37eSRobert Watson 135395fab37eSRobert Watson mac_init_label(&ifp->if_label); 135496adb909SRobert Watson MAC_PERFORM(init_ifnet_label, &ifp->if_label); 1355f050add5SRobert Watson #ifdef MAC_DEBUG 135695fab37eSRobert Watson atomic_add_int(&nmacifnets, 1); 1357f050add5SRobert Watson #endif 135895fab37eSRobert Watson } 135995fab37eSRobert Watson 136095fab37eSRobert Watson void 136195fab37eSRobert Watson mac_destroy_ifnet(struct ifnet *ifp) 136295fab37eSRobert Watson { 136395fab37eSRobert Watson 136496adb909SRobert Watson MAC_PERFORM(destroy_ifnet_label, &ifp->if_label); 136595fab37eSRobert Watson mac_destroy_label(&ifp->if_label); 1366f050add5SRobert Watson #ifdef MAC_DEBUG 136795fab37eSRobert Watson atomic_subtract_int(&nmacifnets, 1); 1368f050add5SRobert Watson #endif 136995fab37eSRobert Watson } 137095fab37eSRobert Watson 137195fab37eSRobert Watson void 137295fab37eSRobert Watson mac_init_ipq(struct ipq *ipq) 137395fab37eSRobert Watson { 137495fab37eSRobert Watson 137595fab37eSRobert Watson mac_init_label(&ipq->ipq_label); 137696adb909SRobert Watson MAC_PERFORM(init_ipq_label, &ipq->ipq_label); 1377f050add5SRobert Watson #ifdef MAC_DEBUG 137895fab37eSRobert Watson atomic_add_int(&nmacipqs, 1); 1379f050add5SRobert Watson #endif 138095fab37eSRobert Watson } 138195fab37eSRobert Watson 138295fab37eSRobert Watson void 138395fab37eSRobert Watson mac_destroy_ipq(struct ipq *ipq) 138495fab37eSRobert Watson { 138595fab37eSRobert Watson 138696adb909SRobert Watson MAC_PERFORM(destroy_ipq_label, &ipq->ipq_label); 138795fab37eSRobert Watson mac_destroy_label(&ipq->ipq_label); 1388f050add5SRobert Watson #ifdef MAC_DEBUG 138995fab37eSRobert Watson atomic_subtract_int(&nmacipqs, 1); 1390f050add5SRobert Watson #endif 139195fab37eSRobert Watson } 139295fab37eSRobert Watson 139395fab37eSRobert Watson void 139495fab37eSRobert Watson mac_init_socket(struct socket *socket) 139595fab37eSRobert Watson { 139695fab37eSRobert Watson 139795fab37eSRobert Watson mac_init_label(&socket->so_label); 139895fab37eSRobert Watson mac_init_label(&socket->so_peerlabel); 139996adb909SRobert Watson MAC_PERFORM(init_socket_label, &socket->so_label); 140096adb909SRobert Watson MAC_PERFORM(init_socket_peer_label, &socket->so_peerlabel); 1401f050add5SRobert Watson #ifdef MAC_DEBUG 140295fab37eSRobert Watson atomic_add_int(&nmacsockets, 1); 1403f050add5SRobert Watson #endif 140495fab37eSRobert Watson } 140595fab37eSRobert Watson 140695fab37eSRobert Watson void 140795fab37eSRobert Watson mac_destroy_socket(struct socket *socket) 140895fab37eSRobert Watson { 140995fab37eSRobert Watson 141096adb909SRobert Watson MAC_PERFORM(destroy_socket_label, &socket->so_label); 141196adb909SRobert Watson MAC_PERFORM(destroy_socket_peer_label, &socket->so_peerlabel); 141295fab37eSRobert Watson mac_destroy_label(&socket->so_label); 141395fab37eSRobert Watson mac_destroy_label(&socket->so_peerlabel); 1414f050add5SRobert Watson #ifdef MAC_DEBUG 141595fab37eSRobert Watson atomic_subtract_int(&nmacsockets, 1); 1416f050add5SRobert Watson #endif 141795fab37eSRobert Watson } 141895fab37eSRobert Watson 141995fab37eSRobert Watson void 142095fab37eSRobert Watson mac_init_pipe(struct pipe *pipe) 142195fab37eSRobert Watson { 142295fab37eSRobert Watson struct label *label; 142395fab37eSRobert Watson 142495fab37eSRobert Watson label = malloc(sizeof(struct label), M_MACPIPELABEL, M_ZERO|M_WAITOK); 142595fab37eSRobert Watson mac_init_label(label); 142695fab37eSRobert Watson pipe->pipe_label = label; 142795fab37eSRobert Watson pipe->pipe_peer->pipe_label = label; 142896adb909SRobert Watson MAC_PERFORM(init_pipe_label, pipe->pipe_label); 1429f050add5SRobert Watson #ifdef MAC_DEBUG 143095fab37eSRobert Watson atomic_add_int(&nmacpipes, 1); 1431f050add5SRobert Watson #endif 143295fab37eSRobert Watson } 143395fab37eSRobert Watson 143495fab37eSRobert Watson void 143595fab37eSRobert Watson mac_destroy_pipe(struct pipe *pipe) 143695fab37eSRobert Watson { 143795fab37eSRobert Watson 143896adb909SRobert Watson MAC_PERFORM(destroy_pipe_label, pipe->pipe_label); 143995fab37eSRobert Watson mac_destroy_label(pipe->pipe_label); 144095fab37eSRobert Watson free(pipe->pipe_label, M_MACPIPELABEL); 1441f050add5SRobert Watson #ifdef MAC_DEBUG 144295fab37eSRobert Watson atomic_subtract_int(&nmacpipes, 1); 1443f050add5SRobert Watson #endif 144495fab37eSRobert Watson } 144595fab37eSRobert Watson 144695fab37eSRobert Watson void 144795fab37eSRobert Watson mac_init_bpfdesc(struct bpf_d *bpf_d) 144895fab37eSRobert Watson { 144995fab37eSRobert Watson 145095fab37eSRobert Watson mac_init_label(&bpf_d->bd_label); 145196adb909SRobert Watson MAC_PERFORM(init_bpfdesc_label, &bpf_d->bd_label); 1452f050add5SRobert Watson #ifdef MAC_DEBUG 145395fab37eSRobert Watson atomic_add_int(&nmacbpfdescs, 1); 1454f050add5SRobert Watson #endif 145595fab37eSRobert Watson } 145695fab37eSRobert Watson 145795fab37eSRobert Watson void 145895fab37eSRobert Watson mac_destroy_bpfdesc(struct bpf_d *bpf_d) 145995fab37eSRobert Watson { 146095fab37eSRobert Watson 146196adb909SRobert Watson MAC_PERFORM(destroy_bpfdesc_label, &bpf_d->bd_label); 146295fab37eSRobert Watson mac_destroy_label(&bpf_d->bd_label); 1463f050add5SRobert Watson #ifdef MAC_DEBUG 146495fab37eSRobert Watson atomic_subtract_int(&nmacbpfdescs, 1); 1465f050add5SRobert Watson #endif 146695fab37eSRobert Watson } 146795fab37eSRobert Watson 146895fab37eSRobert Watson void 146995fab37eSRobert Watson mac_init_mount(struct mount *mp) 147095fab37eSRobert Watson { 147195fab37eSRobert Watson 147295fab37eSRobert Watson mac_init_label(&mp->mnt_mntlabel); 147395fab37eSRobert Watson mac_init_label(&mp->mnt_fslabel); 147496adb909SRobert Watson MAC_PERFORM(init_mount_label, &mp->mnt_mntlabel); 147596adb909SRobert Watson MAC_PERFORM(init_mount_fs_label, &mp->mnt_fslabel); 1476f050add5SRobert Watson #ifdef MAC_DEBUG 147795fab37eSRobert Watson atomic_add_int(&nmacmounts, 1); 1478f050add5SRobert Watson #endif 147995fab37eSRobert Watson } 148095fab37eSRobert Watson 148195fab37eSRobert Watson void 148295fab37eSRobert Watson mac_destroy_mount(struct mount *mp) 148395fab37eSRobert Watson { 148495fab37eSRobert Watson 148596adb909SRobert Watson MAC_PERFORM(destroy_mount_label, &mp->mnt_mntlabel); 148696adb909SRobert Watson MAC_PERFORM(destroy_mount_fs_label, &mp->mnt_fslabel); 148795fab37eSRobert Watson mac_destroy_label(&mp->mnt_fslabel); 148895fab37eSRobert Watson mac_destroy_label(&mp->mnt_mntlabel); 1489f050add5SRobert Watson #ifdef MAC_DEBUG 149095fab37eSRobert Watson atomic_subtract_int(&nmacmounts, 1); 1491f050add5SRobert Watson #endif 149295fab37eSRobert Watson } 149395fab37eSRobert Watson 149495fab37eSRobert Watson static void 149595fab37eSRobert Watson mac_init_temp(struct label *label) 149695fab37eSRobert Watson { 149795fab37eSRobert Watson 149895fab37eSRobert Watson mac_init_label(label); 149996adb909SRobert Watson MAC_PERFORM(init_temp_label, label); 1500f050add5SRobert Watson #ifdef MAC_DEBUG 150195fab37eSRobert Watson atomic_add_int(&nmactemp, 1); 1502f050add5SRobert Watson #endif 150395fab37eSRobert Watson } 150495fab37eSRobert Watson 150595fab37eSRobert Watson static void 150695fab37eSRobert Watson mac_destroy_temp(struct label *label) 150795fab37eSRobert Watson { 150895fab37eSRobert Watson 150996adb909SRobert Watson MAC_PERFORM(destroy_temp_label, label); 151095fab37eSRobert Watson mac_destroy_label(label); 1511f050add5SRobert Watson #ifdef MAC_DEBUG 151295fab37eSRobert Watson atomic_subtract_int(&nmactemp, 1); 1513f050add5SRobert Watson #endif 151495fab37eSRobert Watson } 151595fab37eSRobert Watson 151695fab37eSRobert Watson void 151795fab37eSRobert Watson mac_init_vnode(struct vnode *vp) 151895fab37eSRobert Watson { 151995fab37eSRobert Watson 152095fab37eSRobert Watson mac_init_label(&vp->v_label); 152196adb909SRobert Watson MAC_PERFORM(init_vnode_label, &vp->v_label); 1522f050add5SRobert Watson #ifdef MAC_DEBUG 152395fab37eSRobert Watson atomic_add_int(&nmacvnodes, 1); 1524f050add5SRobert Watson #endif 152595fab37eSRobert Watson } 152695fab37eSRobert Watson 152795fab37eSRobert Watson void 152895fab37eSRobert Watson mac_destroy_vnode(struct vnode *vp) 152995fab37eSRobert Watson { 153095fab37eSRobert Watson 153196adb909SRobert Watson MAC_PERFORM(destroy_vnode_label, &vp->v_label); 153295fab37eSRobert Watson mac_destroy_label(&vp->v_label); 1533f050add5SRobert Watson #ifdef MAC_DEBUG 153495fab37eSRobert Watson atomic_subtract_int(&nmacvnodes, 1); 1535f050add5SRobert Watson #endif 153695fab37eSRobert Watson } 153795fab37eSRobert Watson 153895fab37eSRobert Watson void 153995fab37eSRobert Watson mac_init_devfsdirent(struct devfs_dirent *de) 154095fab37eSRobert Watson { 154195fab37eSRobert Watson 154295fab37eSRobert Watson mac_init_label(&de->de_label); 154396adb909SRobert Watson MAC_PERFORM(init_devfsdirent_label, &de->de_label); 1544f050add5SRobert Watson #ifdef MAC_DEBUG 154595fab37eSRobert Watson atomic_add_int(&nmacdevfsdirents, 1); 1546f050add5SRobert Watson #endif 154795fab37eSRobert Watson } 154895fab37eSRobert Watson 154995fab37eSRobert Watson void 155095fab37eSRobert Watson mac_destroy_devfsdirent(struct devfs_dirent *de) 155195fab37eSRobert Watson { 155295fab37eSRobert Watson 155396adb909SRobert Watson MAC_PERFORM(destroy_devfsdirent_label, &de->de_label); 155495fab37eSRobert Watson mac_destroy_label(&de->de_label); 1555f050add5SRobert Watson #ifdef MAC_DEBUG 155695fab37eSRobert Watson atomic_subtract_int(&nmacdevfsdirents, 1); 1557f050add5SRobert Watson #endif 155895fab37eSRobert Watson } 155995fab37eSRobert Watson 156095fab37eSRobert Watson static int 156195fab37eSRobert Watson mac_externalize(struct label *label, struct mac *mac) 156295fab37eSRobert Watson { 156395fab37eSRobert Watson int error; 156495fab37eSRobert Watson 156595fab37eSRobert Watson mac_init_structmac(mac); 156695fab37eSRobert Watson MAC_CHECK(externalize, label, mac); 156795fab37eSRobert Watson 156895fab37eSRobert Watson return (error); 156995fab37eSRobert Watson } 157095fab37eSRobert Watson 157195fab37eSRobert Watson static int 157295fab37eSRobert Watson mac_internalize(struct label *label, struct mac *mac) 157395fab37eSRobert Watson { 157495fab37eSRobert Watson int error; 157595fab37eSRobert Watson 157695fab37eSRobert Watson mac_init_temp(label); 157795fab37eSRobert Watson MAC_CHECK(internalize, label, mac); 157895fab37eSRobert Watson if (error) 157995fab37eSRobert Watson mac_destroy_temp(label); 158095fab37eSRobert Watson 158195fab37eSRobert Watson return (error); 158295fab37eSRobert Watson } 158395fab37eSRobert Watson 158495fab37eSRobert Watson /* 158595fab37eSRobert Watson * Initialize MAC label for the first kernel process, from which other 158695fab37eSRobert Watson * kernel processes and threads are spawned. 158795fab37eSRobert Watson */ 158895fab37eSRobert Watson void 158995fab37eSRobert Watson mac_create_proc0(struct ucred *cred) 159095fab37eSRobert Watson { 159195fab37eSRobert Watson 159295fab37eSRobert Watson MAC_PERFORM(create_proc0, cred); 159395fab37eSRobert Watson } 159495fab37eSRobert Watson 159595fab37eSRobert Watson /* 159695fab37eSRobert Watson * Initialize MAC label for the first userland process, from which other 159795fab37eSRobert Watson * userland processes and threads are spawned. 159895fab37eSRobert Watson */ 159995fab37eSRobert Watson void 160095fab37eSRobert Watson mac_create_proc1(struct ucred *cred) 160195fab37eSRobert Watson { 160295fab37eSRobert Watson 160395fab37eSRobert Watson MAC_PERFORM(create_proc1, cred); 160495fab37eSRobert Watson } 160595fab37eSRobert Watson 160692dbb82aSRobert Watson void 160792dbb82aSRobert Watson mac_thread_userret(struct thread *td) 160892dbb82aSRobert Watson { 160992dbb82aSRobert Watson 161092dbb82aSRobert Watson MAC_PERFORM(thread_userret, td); 161192dbb82aSRobert Watson } 161292dbb82aSRobert Watson 161395fab37eSRobert Watson /* 161495fab37eSRobert Watson * When a new process is created, its label must be initialized. Generally, 161595fab37eSRobert Watson * this involves inheritence from the parent process, modulo possible 161695fab37eSRobert Watson * deltas. This function allows that processing to take place. 161795fab37eSRobert Watson */ 161895fab37eSRobert Watson void 161995fab37eSRobert Watson mac_create_cred(struct ucred *parent_cred, struct ucred *child_cred) 162095fab37eSRobert Watson { 162195fab37eSRobert Watson 162295fab37eSRobert Watson MAC_PERFORM(create_cred, parent_cred, child_cred); 162395fab37eSRobert Watson } 162495fab37eSRobert Watson 162595fab37eSRobert Watson int 162695fab37eSRobert Watson mac_check_vnode_access(struct ucred *cred, struct vnode *vp, int flags) 162795fab37eSRobert Watson { 162895fab37eSRobert Watson int error; 162995fab37eSRobert Watson 163095fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_access"); 163195fab37eSRobert Watson 163295fab37eSRobert Watson if (!mac_enforce_fs) 163395fab37eSRobert Watson return (0); 163495fab37eSRobert Watson 163595fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 163695fab37eSRobert Watson if (error) 163795fab37eSRobert Watson return (error); 163895fab37eSRobert Watson 163995fab37eSRobert Watson MAC_CHECK(check_vnode_access, cred, vp, &vp->v_label, flags); 164095fab37eSRobert Watson return (error); 164195fab37eSRobert Watson } 164295fab37eSRobert Watson 164395fab37eSRobert Watson int 164495fab37eSRobert Watson mac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp) 164595fab37eSRobert Watson { 164695fab37eSRobert Watson int error; 164795fab37eSRobert Watson 164895fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chdir"); 164995fab37eSRobert Watson 165095fab37eSRobert Watson if (!mac_enforce_fs) 165195fab37eSRobert Watson return (0); 165295fab37eSRobert Watson 165395fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 165495fab37eSRobert Watson if (error) 165595fab37eSRobert Watson return (error); 165695fab37eSRobert Watson 165795fab37eSRobert Watson MAC_CHECK(check_vnode_chdir, cred, dvp, &dvp->v_label); 165895fab37eSRobert Watson return (error); 165995fab37eSRobert Watson } 166095fab37eSRobert Watson 166195fab37eSRobert Watson int 166295fab37eSRobert Watson mac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp) 166395fab37eSRobert Watson { 166495fab37eSRobert Watson int error; 166595fab37eSRobert Watson 166695fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chroot"); 166795fab37eSRobert Watson 166895fab37eSRobert Watson if (!mac_enforce_fs) 166995fab37eSRobert Watson return (0); 167095fab37eSRobert Watson 167195fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 167295fab37eSRobert Watson if (error) 167395fab37eSRobert Watson return (error); 167495fab37eSRobert Watson 167595fab37eSRobert Watson MAC_CHECK(check_vnode_chroot, cred, dvp, &dvp->v_label); 167695fab37eSRobert Watson return (error); 167795fab37eSRobert Watson } 167895fab37eSRobert Watson 167995fab37eSRobert Watson int 168095fab37eSRobert Watson mac_check_vnode_create(struct ucred *cred, struct vnode *dvp, 168195fab37eSRobert Watson struct componentname *cnp, struct vattr *vap) 168295fab37eSRobert Watson { 168395fab37eSRobert Watson int error; 168495fab37eSRobert Watson 168595fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_create"); 168695fab37eSRobert Watson 168795fab37eSRobert Watson if (!mac_enforce_fs) 168895fab37eSRobert Watson return (0); 168995fab37eSRobert Watson 169095fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 169195fab37eSRobert Watson if (error) 169295fab37eSRobert Watson return (error); 169395fab37eSRobert Watson 169495fab37eSRobert Watson MAC_CHECK(check_vnode_create, cred, dvp, &dvp->v_label, cnp, vap); 169595fab37eSRobert Watson return (error); 169695fab37eSRobert Watson } 169795fab37eSRobert Watson 169895fab37eSRobert Watson int 169995fab37eSRobert Watson mac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, struct vnode *vp, 170095fab37eSRobert Watson struct componentname *cnp) 170195fab37eSRobert Watson { 170295fab37eSRobert Watson int error; 170395fab37eSRobert Watson 170495fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_delete"); 170595fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_delete"); 170695fab37eSRobert Watson 170795fab37eSRobert Watson if (!mac_enforce_fs) 170895fab37eSRobert Watson return (0); 170995fab37eSRobert Watson 171095fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 171195fab37eSRobert Watson if (error) 171295fab37eSRobert Watson return (error); 171395fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 171495fab37eSRobert Watson if (error) 171595fab37eSRobert Watson return (error); 171695fab37eSRobert Watson 171795fab37eSRobert Watson MAC_CHECK(check_vnode_delete, cred, dvp, &dvp->v_label, vp, 171895fab37eSRobert Watson &vp->v_label, cnp); 171995fab37eSRobert Watson return (error); 172095fab37eSRobert Watson } 172195fab37eSRobert Watson 172295fab37eSRobert Watson int 172395fab37eSRobert Watson mac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 172495fab37eSRobert Watson acl_type_t type) 172595fab37eSRobert Watson { 172695fab37eSRobert Watson int error; 172795fab37eSRobert Watson 172895fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_deleteacl"); 172995fab37eSRobert Watson 173095fab37eSRobert Watson if (!mac_enforce_fs) 173195fab37eSRobert Watson return (0); 173295fab37eSRobert Watson 173395fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 173495fab37eSRobert Watson if (error) 173595fab37eSRobert Watson return (error); 173695fab37eSRobert Watson 173795fab37eSRobert Watson MAC_CHECK(check_vnode_deleteacl, cred, vp, &vp->v_label, type); 173895fab37eSRobert Watson return (error); 173995fab37eSRobert Watson } 174095fab37eSRobert Watson 174195fab37eSRobert Watson int 174295fab37eSRobert Watson mac_check_vnode_exec(struct ucred *cred, struct vnode *vp) 174395fab37eSRobert Watson { 174495fab37eSRobert Watson int error; 174595fab37eSRobert Watson 1746851704bbSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_exec"); 1747851704bbSRobert Watson 174895fab37eSRobert Watson if (!mac_enforce_process && !mac_enforce_fs) 174995fab37eSRobert Watson return (0); 175095fab37eSRobert Watson 175195fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 175295fab37eSRobert Watson if (error) 175395fab37eSRobert Watson return (error); 175495fab37eSRobert Watson MAC_CHECK(check_vnode_exec, cred, vp, &vp->v_label); 175595fab37eSRobert Watson 175695fab37eSRobert Watson return (error); 175795fab37eSRobert Watson } 175895fab37eSRobert Watson 175995fab37eSRobert Watson int 176095fab37eSRobert Watson mac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, acl_type_t type) 176195fab37eSRobert Watson { 176295fab37eSRobert Watson int error; 176395fab37eSRobert Watson 176495fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getacl"); 176595fab37eSRobert Watson 176695fab37eSRobert Watson if (!mac_enforce_fs) 176795fab37eSRobert Watson return (0); 176895fab37eSRobert Watson 176995fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 177095fab37eSRobert Watson if (error) 177195fab37eSRobert Watson return (error); 177295fab37eSRobert Watson 177395fab37eSRobert Watson MAC_CHECK(check_vnode_getacl, cred, vp, &vp->v_label, type); 177495fab37eSRobert Watson return (error); 177595fab37eSRobert Watson } 177695fab37eSRobert Watson 177795fab37eSRobert Watson int 177895fab37eSRobert Watson mac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 177995fab37eSRobert Watson int attrnamespace, const char *name, struct uio *uio) 178095fab37eSRobert Watson { 178195fab37eSRobert Watson int error; 178295fab37eSRobert Watson 178395fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getextattr"); 178495fab37eSRobert Watson 178595fab37eSRobert Watson if (!mac_enforce_fs) 178695fab37eSRobert Watson return (0); 178795fab37eSRobert Watson 178895fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 178995fab37eSRobert Watson if (error) 179095fab37eSRobert Watson return (error); 179195fab37eSRobert Watson 179295fab37eSRobert Watson MAC_CHECK(check_vnode_getextattr, cred, vp, &vp->v_label, 179395fab37eSRobert Watson attrnamespace, name, uio); 179495fab37eSRobert Watson return (error); 179595fab37eSRobert Watson } 179695fab37eSRobert Watson 179795fab37eSRobert Watson int 179895fab37eSRobert Watson mac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 179995fab37eSRobert Watson struct componentname *cnp) 180095fab37eSRobert Watson { 180195fab37eSRobert Watson int error; 180295fab37eSRobert Watson 180395fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_lookup"); 180495fab37eSRobert Watson 180595fab37eSRobert Watson if (!mac_enforce_fs) 180695fab37eSRobert Watson return (0); 180795fab37eSRobert Watson 180895fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 180995fab37eSRobert Watson if (error) 181095fab37eSRobert Watson return (error); 181195fab37eSRobert Watson 181295fab37eSRobert Watson MAC_CHECK(check_vnode_lookup, cred, dvp, &dvp->v_label, cnp); 181395fab37eSRobert Watson return (error); 181495fab37eSRobert Watson } 181595fab37eSRobert Watson 181695fab37eSRobert Watson vm_prot_t 181795fab37eSRobert Watson mac_check_vnode_mmap_prot(struct ucred *cred, struct vnode *vp, int newmapping) 181895fab37eSRobert Watson { 181995fab37eSRobert Watson vm_prot_t result = VM_PROT_ALL; 182095fab37eSRobert Watson 1821ca7850c3SRobert Watson if (!mac_enforce_vm) 1822ca7850c3SRobert Watson return (result); 1823ca7850c3SRobert Watson 182495fab37eSRobert Watson /* 182595fab37eSRobert Watson * This should be some sort of MAC_BITWISE, maybe :) 182695fab37eSRobert Watson */ 182795fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_mmap_perms"); 182895fab37eSRobert Watson MAC_BOOLEAN(check_vnode_mmap_perms, &, cred, vp, &vp->v_label, 182995fab37eSRobert Watson newmapping); 183095fab37eSRobert Watson return (result); 183195fab37eSRobert Watson } 183295fab37eSRobert Watson 183395fab37eSRobert Watson int 183495fab37eSRobert Watson mac_check_vnode_open(struct ucred *cred, struct vnode *vp, mode_t acc_mode) 183595fab37eSRobert Watson { 183695fab37eSRobert Watson int error; 183795fab37eSRobert Watson 183895fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_open"); 183995fab37eSRobert Watson 184095fab37eSRobert Watson if (!mac_enforce_fs) 184195fab37eSRobert Watson return (0); 184295fab37eSRobert Watson 184395fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 184495fab37eSRobert Watson if (error) 184595fab37eSRobert Watson return (error); 184695fab37eSRobert Watson 184795fab37eSRobert Watson MAC_CHECK(check_vnode_open, cred, vp, &vp->v_label, acc_mode); 184895fab37eSRobert Watson return (error); 184995fab37eSRobert Watson } 185095fab37eSRobert Watson 185195fab37eSRobert Watson int 1852177142e4SRobert Watson mac_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 1853177142e4SRobert Watson struct vnode *vp) 18547f724f8bSRobert Watson { 18557f724f8bSRobert Watson int error; 18567f724f8bSRobert Watson 18577f724f8bSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_poll"); 18587f724f8bSRobert Watson 18597f724f8bSRobert Watson if (!mac_enforce_fs) 18607f724f8bSRobert Watson return (0); 18617f724f8bSRobert Watson 1862177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 18637f724f8bSRobert Watson if (error) 18647f724f8bSRobert Watson return (error); 18657f724f8bSRobert Watson 1866177142e4SRobert Watson MAC_CHECK(check_vnode_poll, active_cred, file_cred, vp, 1867177142e4SRobert Watson &vp->v_label); 18687f724f8bSRobert Watson 18697f724f8bSRobert Watson return (error); 18707f724f8bSRobert Watson } 18717f724f8bSRobert Watson 18727f724f8bSRobert Watson int 1873177142e4SRobert Watson mac_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 1874177142e4SRobert Watson struct vnode *vp) 18757f724f8bSRobert Watson { 18767f724f8bSRobert Watson int error; 18777f724f8bSRobert Watson 18787f724f8bSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_read"); 18797f724f8bSRobert Watson 18807f724f8bSRobert Watson if (!mac_enforce_fs) 18817f724f8bSRobert Watson return (0); 18827f724f8bSRobert Watson 1883177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 18847f724f8bSRobert Watson if (error) 18857f724f8bSRobert Watson return (error); 18867f724f8bSRobert Watson 1887177142e4SRobert Watson MAC_CHECK(check_vnode_read, active_cred, file_cred, vp, 1888177142e4SRobert Watson &vp->v_label); 18897f724f8bSRobert Watson 18907f724f8bSRobert Watson return (error); 18917f724f8bSRobert Watson } 18927f724f8bSRobert Watson 18937f724f8bSRobert Watson int 189495fab37eSRobert Watson mac_check_vnode_readdir(struct ucred *cred, struct vnode *dvp) 189595fab37eSRobert Watson { 189695fab37eSRobert Watson int error; 189795fab37eSRobert Watson 189895fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_readdir"); 189995fab37eSRobert Watson 190095fab37eSRobert Watson if (!mac_enforce_fs) 190195fab37eSRobert Watson return (0); 190295fab37eSRobert Watson 190395fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 190495fab37eSRobert Watson if (error) 190595fab37eSRobert Watson return (error); 190695fab37eSRobert Watson 190795fab37eSRobert Watson MAC_CHECK(check_vnode_readdir, cred, dvp, &dvp->v_label); 190895fab37eSRobert Watson return (error); 190995fab37eSRobert Watson } 191095fab37eSRobert Watson 191195fab37eSRobert Watson int 191295fab37eSRobert Watson mac_check_vnode_readlink(struct ucred *cred, struct vnode *vp) 191395fab37eSRobert Watson { 191495fab37eSRobert Watson int error; 191595fab37eSRobert Watson 191695fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_readlink"); 191795fab37eSRobert Watson 191895fab37eSRobert Watson if (!mac_enforce_fs) 191995fab37eSRobert Watson return (0); 192095fab37eSRobert Watson 192195fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 192295fab37eSRobert Watson if (error) 192395fab37eSRobert Watson return (error); 192495fab37eSRobert Watson 192595fab37eSRobert Watson MAC_CHECK(check_vnode_readlink, cred, vp, &vp->v_label); 192695fab37eSRobert Watson return (error); 192795fab37eSRobert Watson } 192895fab37eSRobert Watson 192995fab37eSRobert Watson static int 193095fab37eSRobert Watson mac_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 193195fab37eSRobert Watson struct label *newlabel) 193295fab37eSRobert Watson { 193395fab37eSRobert Watson int error; 193495fab37eSRobert Watson 193595fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_relabel"); 193695fab37eSRobert Watson 193795fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 193895fab37eSRobert Watson if (error) 193995fab37eSRobert Watson return (error); 194095fab37eSRobert Watson 194195fab37eSRobert Watson MAC_CHECK(check_vnode_relabel, cred, vp, &vp->v_label, newlabel); 194295fab37eSRobert Watson 194395fab37eSRobert Watson return (error); 194495fab37eSRobert Watson } 194595fab37eSRobert Watson 194695fab37eSRobert Watson int 194795fab37eSRobert Watson mac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 194895fab37eSRobert Watson struct vnode *vp, struct componentname *cnp) 194995fab37eSRobert Watson { 195095fab37eSRobert Watson int error; 195195fab37eSRobert Watson 195295fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_from"); 195395fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_from"); 195495fab37eSRobert Watson 195595fab37eSRobert Watson if (!mac_enforce_fs) 195695fab37eSRobert Watson return (0); 195795fab37eSRobert Watson 195895fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 195995fab37eSRobert Watson if (error) 196095fab37eSRobert Watson return (error); 196195fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 196295fab37eSRobert Watson if (error) 196395fab37eSRobert Watson return (error); 196495fab37eSRobert Watson 196595fab37eSRobert Watson MAC_CHECK(check_vnode_rename_from, cred, dvp, &dvp->v_label, vp, 196695fab37eSRobert Watson &vp->v_label, cnp); 196795fab37eSRobert Watson return (error); 196895fab37eSRobert Watson } 196995fab37eSRobert Watson 197095fab37eSRobert Watson int 197195fab37eSRobert Watson mac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 197295fab37eSRobert Watson struct vnode *vp, int samedir, struct componentname *cnp) 197395fab37eSRobert Watson { 197495fab37eSRobert Watson int error; 197595fab37eSRobert Watson 197695fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_to"); 197795fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_to"); 197895fab37eSRobert Watson 197995fab37eSRobert Watson if (!mac_enforce_fs) 198095fab37eSRobert Watson return (0); 198195fab37eSRobert Watson 198295fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 198395fab37eSRobert Watson if (error) 198495fab37eSRobert Watson return (error); 198595fab37eSRobert Watson if (vp != NULL) { 198695fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 198795fab37eSRobert Watson if (error) 198895fab37eSRobert Watson return (error); 198995fab37eSRobert Watson } 199095fab37eSRobert Watson MAC_CHECK(check_vnode_rename_to, cred, dvp, &dvp->v_label, vp, 199195fab37eSRobert Watson vp != NULL ? &vp->v_label : NULL, samedir, cnp); 199295fab37eSRobert Watson return (error); 199395fab37eSRobert Watson } 199495fab37eSRobert Watson 199595fab37eSRobert Watson int 199695fab37eSRobert Watson mac_check_vnode_revoke(struct ucred *cred, struct vnode *vp) 199795fab37eSRobert Watson { 199895fab37eSRobert Watson int error; 199995fab37eSRobert Watson 200095fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_revoke"); 200195fab37eSRobert Watson 200295fab37eSRobert Watson if (!mac_enforce_fs) 200395fab37eSRobert Watson return (0); 200495fab37eSRobert Watson 200595fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 200695fab37eSRobert Watson if (error) 200795fab37eSRobert Watson return (error); 200895fab37eSRobert Watson 200995fab37eSRobert Watson MAC_CHECK(check_vnode_revoke, cred, vp, &vp->v_label); 201095fab37eSRobert Watson return (error); 201195fab37eSRobert Watson } 201295fab37eSRobert Watson 201395fab37eSRobert Watson int 201495fab37eSRobert Watson mac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, acl_type_t type, 201595fab37eSRobert Watson struct acl *acl) 201695fab37eSRobert Watson { 201795fab37eSRobert Watson int error; 201895fab37eSRobert Watson 201995fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setacl"); 202095fab37eSRobert Watson 202195fab37eSRobert Watson if (!mac_enforce_fs) 202295fab37eSRobert Watson return (0); 202395fab37eSRobert Watson 202495fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 202595fab37eSRobert Watson if (error) 202695fab37eSRobert Watson return (error); 202795fab37eSRobert Watson 202895fab37eSRobert Watson MAC_CHECK(check_vnode_setacl, cred, vp, &vp->v_label, type, acl); 202995fab37eSRobert Watson return (error); 203095fab37eSRobert Watson } 203195fab37eSRobert Watson 203295fab37eSRobert Watson int 203395fab37eSRobert Watson mac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 203495fab37eSRobert Watson int attrnamespace, const char *name, struct uio *uio) 203595fab37eSRobert Watson { 203695fab37eSRobert Watson int error; 203795fab37eSRobert Watson 203895fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setextattr"); 203995fab37eSRobert Watson 204095fab37eSRobert Watson if (!mac_enforce_fs) 204195fab37eSRobert Watson return (0); 204295fab37eSRobert Watson 204395fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 204495fab37eSRobert Watson if (error) 204595fab37eSRobert Watson return (error); 204695fab37eSRobert Watson 204795fab37eSRobert Watson MAC_CHECK(check_vnode_setextattr, cred, vp, &vp->v_label, 204895fab37eSRobert Watson attrnamespace, name, uio); 204995fab37eSRobert Watson return (error); 205095fab37eSRobert Watson } 205195fab37eSRobert Watson 205295fab37eSRobert Watson int 205395fab37eSRobert Watson mac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, u_long flags) 205495fab37eSRobert Watson { 205595fab37eSRobert Watson int error; 205695fab37eSRobert Watson 205795fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setflags"); 205895fab37eSRobert Watson 205995fab37eSRobert Watson if (!mac_enforce_fs) 206095fab37eSRobert Watson return (0); 206195fab37eSRobert Watson 206295fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 206395fab37eSRobert Watson if (error) 206495fab37eSRobert Watson return (error); 206595fab37eSRobert Watson 206695fab37eSRobert Watson MAC_CHECK(check_vnode_setflags, cred, vp, &vp->v_label, flags); 206795fab37eSRobert Watson return (error); 206895fab37eSRobert Watson } 206995fab37eSRobert Watson 207095fab37eSRobert Watson int 207195fab37eSRobert Watson mac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, mode_t mode) 207295fab37eSRobert Watson { 207395fab37eSRobert Watson int error; 207495fab37eSRobert Watson 207595fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setmode"); 207695fab37eSRobert Watson 207795fab37eSRobert Watson if (!mac_enforce_fs) 207895fab37eSRobert Watson return (0); 207995fab37eSRobert Watson 208095fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 208195fab37eSRobert Watson if (error) 208295fab37eSRobert Watson return (error); 208395fab37eSRobert Watson 208495fab37eSRobert Watson MAC_CHECK(check_vnode_setmode, cred, vp, &vp->v_label, mode); 208595fab37eSRobert Watson return (error); 208695fab37eSRobert Watson } 208795fab37eSRobert Watson 208895fab37eSRobert Watson int 208995fab37eSRobert Watson mac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, uid_t uid, 209095fab37eSRobert Watson gid_t gid) 209195fab37eSRobert Watson { 209295fab37eSRobert Watson int error; 209395fab37eSRobert Watson 209495fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setowner"); 209595fab37eSRobert Watson 209695fab37eSRobert Watson if (!mac_enforce_fs) 209795fab37eSRobert Watson return (0); 209895fab37eSRobert Watson 209995fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 210095fab37eSRobert Watson if (error) 210195fab37eSRobert Watson return (error); 210295fab37eSRobert Watson 210395fab37eSRobert Watson MAC_CHECK(check_vnode_setowner, cred, vp, &vp->v_label, uid, gid); 210495fab37eSRobert Watson return (error); 210595fab37eSRobert Watson } 210695fab37eSRobert Watson 210795fab37eSRobert Watson int 210895fab37eSRobert Watson mac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 210995fab37eSRobert Watson struct timespec atime, struct timespec mtime) 211095fab37eSRobert Watson { 211195fab37eSRobert Watson int error; 211295fab37eSRobert Watson 211395fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setutimes"); 211495fab37eSRobert Watson 211595fab37eSRobert Watson if (!mac_enforce_fs) 211695fab37eSRobert Watson return (0); 211795fab37eSRobert Watson 211895fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 211995fab37eSRobert Watson if (error) 212095fab37eSRobert Watson return (error); 212195fab37eSRobert Watson 212295fab37eSRobert Watson MAC_CHECK(check_vnode_setutimes, cred, vp, &vp->v_label, atime, 212395fab37eSRobert Watson mtime); 212495fab37eSRobert Watson return (error); 212595fab37eSRobert Watson } 212695fab37eSRobert Watson 212795fab37eSRobert Watson int 2128177142e4SRobert Watson mac_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 2129177142e4SRobert Watson struct vnode *vp) 213095fab37eSRobert Watson { 213195fab37eSRobert Watson int error; 213295fab37eSRobert Watson 213395fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_stat"); 213495fab37eSRobert Watson 213595fab37eSRobert Watson if (!mac_enforce_fs) 213695fab37eSRobert Watson return (0); 213795fab37eSRobert Watson 2138177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 213995fab37eSRobert Watson if (error) 214095fab37eSRobert Watson return (error); 214195fab37eSRobert Watson 2142177142e4SRobert Watson MAC_CHECK(check_vnode_stat, active_cred, file_cred, vp, 2143177142e4SRobert Watson &vp->v_label); 214495fab37eSRobert Watson return (error); 214595fab37eSRobert Watson } 214695fab37eSRobert Watson 21477f724f8bSRobert Watson int 2148177142e4SRobert Watson mac_check_vnode_write(struct ucred *active_cred, struct ucred *file_cred, 2149177142e4SRobert Watson struct vnode *vp) 21507f724f8bSRobert Watson { 21517f724f8bSRobert Watson int error; 21527f724f8bSRobert Watson 21537f724f8bSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_write"); 21547f724f8bSRobert Watson 21557f724f8bSRobert Watson if (!mac_enforce_fs) 21567f724f8bSRobert Watson return (0); 21577f724f8bSRobert Watson 2158177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 21597f724f8bSRobert Watson if (error) 21607f724f8bSRobert Watson return (error); 21617f724f8bSRobert Watson 2162177142e4SRobert Watson MAC_CHECK(check_vnode_write, active_cred, file_cred, vp, 2163177142e4SRobert Watson &vp->v_label); 21647f724f8bSRobert Watson 21657f724f8bSRobert Watson return (error); 21667f724f8bSRobert Watson } 21677f724f8bSRobert Watson 216895fab37eSRobert Watson /* 216995fab37eSRobert Watson * When relabeling a process, call out to the policies for the maximum 217095fab37eSRobert Watson * permission allowed for each object type we know about in its 217195fab37eSRobert Watson * memory space, and revoke access (in the least surprising ways we 217295fab37eSRobert Watson * know) when necessary. The process lock is not held here. 217395fab37eSRobert Watson */ 217495fab37eSRobert Watson static void 217595fab37eSRobert Watson mac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred) 217695fab37eSRobert Watson { 217795fab37eSRobert Watson 217895fab37eSRobert Watson /* XXX freeze all other threads */ 217995fab37eSRobert Watson mac_cred_mmapped_drop_perms_recurse(td, cred, 218095fab37eSRobert Watson &td->td_proc->p_vmspace->vm_map); 218195fab37eSRobert Watson /* XXX allow other threads to continue */ 218295fab37eSRobert Watson } 218395fab37eSRobert Watson 218495fab37eSRobert Watson static __inline const char * 218595fab37eSRobert Watson prot2str(vm_prot_t prot) 218695fab37eSRobert Watson { 218795fab37eSRobert Watson 218895fab37eSRobert Watson switch (prot & VM_PROT_ALL) { 218995fab37eSRobert Watson case VM_PROT_READ: 219095fab37eSRobert Watson return ("r--"); 219195fab37eSRobert Watson case VM_PROT_READ | VM_PROT_WRITE: 219295fab37eSRobert Watson return ("rw-"); 219395fab37eSRobert Watson case VM_PROT_READ | VM_PROT_EXECUTE: 219495fab37eSRobert Watson return ("r-x"); 219595fab37eSRobert Watson case VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE: 219695fab37eSRobert Watson return ("rwx"); 219795fab37eSRobert Watson case VM_PROT_WRITE: 219895fab37eSRobert Watson return ("-w-"); 219995fab37eSRobert Watson case VM_PROT_EXECUTE: 220095fab37eSRobert Watson return ("--x"); 220195fab37eSRobert Watson case VM_PROT_WRITE | VM_PROT_EXECUTE: 220295fab37eSRobert Watson return ("-wx"); 220395fab37eSRobert Watson default: 220495fab37eSRobert Watson return ("---"); 220595fab37eSRobert Watson } 220695fab37eSRobert Watson } 220795fab37eSRobert Watson 220895fab37eSRobert Watson static void 220995fab37eSRobert Watson mac_cred_mmapped_drop_perms_recurse(struct thread *td, struct ucred *cred, 221095fab37eSRobert Watson struct vm_map *map) 221195fab37eSRobert Watson { 221295fab37eSRobert Watson struct vm_map_entry *vme; 221395fab37eSRobert Watson vm_prot_t result, revokeperms; 221495fab37eSRobert Watson vm_object_t object; 221595fab37eSRobert Watson vm_ooffset_t offset; 221695fab37eSRobert Watson struct vnode *vp; 221795fab37eSRobert Watson 2218c0f39905SRobert Watson if (!mac_mmap_revocation) 2219c0f39905SRobert Watson return; 2220c0f39905SRobert Watson 222195fab37eSRobert Watson vm_map_lock_read(map); 222295fab37eSRobert Watson for (vme = map->header.next; vme != &map->header; vme = vme->next) { 222395fab37eSRobert Watson if (vme->eflags & MAP_ENTRY_IS_SUB_MAP) { 222495fab37eSRobert Watson mac_cred_mmapped_drop_perms_recurse(td, cred, 222595fab37eSRobert Watson vme->object.sub_map); 222695fab37eSRobert Watson continue; 222795fab37eSRobert Watson } 222895fab37eSRobert Watson /* 222995fab37eSRobert Watson * Skip over entries that obviously are not shared. 223095fab37eSRobert Watson */ 223195fab37eSRobert Watson if (vme->eflags & (MAP_ENTRY_COW | MAP_ENTRY_NOSYNC) || 223295fab37eSRobert Watson !vme->max_protection) 223395fab37eSRobert Watson continue; 223495fab37eSRobert Watson /* 223595fab37eSRobert Watson * Drill down to the deepest backing object. 223695fab37eSRobert Watson */ 223795fab37eSRobert Watson offset = vme->offset; 223895fab37eSRobert Watson object = vme->object.vm_object; 223995fab37eSRobert Watson if (object == NULL) 224095fab37eSRobert Watson continue; 224195fab37eSRobert Watson while (object->backing_object != NULL) { 224295fab37eSRobert Watson object = object->backing_object; 224395fab37eSRobert Watson offset += object->backing_object_offset; 224495fab37eSRobert Watson } 224595fab37eSRobert Watson /* 224695fab37eSRobert Watson * At the moment, vm_maps and objects aren't considered 224795fab37eSRobert Watson * by the MAC system, so only things with backing by a 224895fab37eSRobert Watson * normal object (read: vnodes) are checked. 224995fab37eSRobert Watson */ 225095fab37eSRobert Watson if (object->type != OBJT_VNODE) 225195fab37eSRobert Watson continue; 225295fab37eSRobert Watson vp = (struct vnode *)object->handle; 225395fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 225495fab37eSRobert Watson result = mac_check_vnode_mmap_prot(cred, vp, 0); 225595fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 225695fab37eSRobert Watson /* 225795fab37eSRobert Watson * Find out what maximum protection we may be allowing 225895fab37eSRobert Watson * now but a policy needs to get removed. 225995fab37eSRobert Watson */ 226095fab37eSRobert Watson revokeperms = vme->max_protection & ~result; 226195fab37eSRobert Watson if (!revokeperms) 226295fab37eSRobert Watson continue; 2263b656366bSBruce Evans printf("pid %ld: revoking %s perms from %#lx:%ld " 2264b656366bSBruce Evans "(max %s/cur %s)\n", (long)td->td_proc->p_pid, 2265b656366bSBruce Evans prot2str(revokeperms), (u_long)vme->start, 2266b656366bSBruce Evans (long)(vme->end - vme->start), 226795fab37eSRobert Watson prot2str(vme->max_protection), prot2str(vme->protection)); 226895fab37eSRobert Watson vm_map_lock_upgrade(map); 226995fab37eSRobert Watson /* 227095fab37eSRobert Watson * This is the really simple case: if a map has more 227195fab37eSRobert Watson * max_protection than is allowed, but it's not being 227295fab37eSRobert Watson * actually used (that is, the current protection is 227395fab37eSRobert Watson * still allowed), we can just wipe it out and do 227495fab37eSRobert Watson * nothing more. 227595fab37eSRobert Watson */ 227695fab37eSRobert Watson if ((vme->protection & revokeperms) == 0) { 227795fab37eSRobert Watson vme->max_protection -= revokeperms; 227895fab37eSRobert Watson } else { 227995fab37eSRobert Watson if (revokeperms & VM_PROT_WRITE) { 228095fab37eSRobert Watson /* 228195fab37eSRobert Watson * In the more complicated case, flush out all 228295fab37eSRobert Watson * pending changes to the object then turn it 228395fab37eSRobert Watson * copy-on-write. 228495fab37eSRobert Watson */ 228595fab37eSRobert Watson vm_object_reference(object); 228695fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 228795fab37eSRobert Watson vm_object_page_clean(object, 228895fab37eSRobert Watson OFF_TO_IDX(offset), 228995fab37eSRobert Watson OFF_TO_IDX(offset + vme->end - vme->start + 229095fab37eSRobert Watson PAGE_MASK), 229195fab37eSRobert Watson OBJPC_SYNC); 229295fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 229395fab37eSRobert Watson vm_object_deallocate(object); 229495fab37eSRobert Watson /* 229595fab37eSRobert Watson * Why bother if there's no read permissions 229695fab37eSRobert Watson * anymore? For the rest, we need to leave 229795fab37eSRobert Watson * the write permissions on for COW, or 229895fab37eSRobert Watson * remove them entirely if configured to. 229995fab37eSRobert Watson */ 230095fab37eSRobert Watson if (!mac_mmap_revocation_via_cow) { 230195fab37eSRobert Watson vme->max_protection &= ~VM_PROT_WRITE; 230295fab37eSRobert Watson vme->protection &= ~VM_PROT_WRITE; 230395fab37eSRobert Watson } if ((revokeperms & VM_PROT_READ) == 0) 230495fab37eSRobert Watson vme->eflags |= MAP_ENTRY_COW | 230595fab37eSRobert Watson MAP_ENTRY_NEEDS_COPY; 230695fab37eSRobert Watson } 230795fab37eSRobert Watson if (revokeperms & VM_PROT_EXECUTE) { 230895fab37eSRobert Watson vme->max_protection &= ~VM_PROT_EXECUTE; 230995fab37eSRobert Watson vme->protection &= ~VM_PROT_EXECUTE; 231095fab37eSRobert Watson } 231195fab37eSRobert Watson if (revokeperms & VM_PROT_READ) { 231295fab37eSRobert Watson vme->max_protection = 0; 231395fab37eSRobert Watson vme->protection = 0; 231495fab37eSRobert Watson } 231595fab37eSRobert Watson pmap_protect(map->pmap, vme->start, vme->end, 231695fab37eSRobert Watson vme->protection & ~revokeperms); 231795fab37eSRobert Watson vm_map_simplify_entry(map, vme); 231895fab37eSRobert Watson } 231995fab37eSRobert Watson vm_map_lock_downgrade(map); 232095fab37eSRobert Watson } 232195fab37eSRobert Watson vm_map_unlock_read(map); 232295fab37eSRobert Watson } 232395fab37eSRobert Watson 232495fab37eSRobert Watson /* 232595fab37eSRobert Watson * When the subject's label changes, it may require revocation of privilege 232695fab37eSRobert Watson * to mapped objects. This can't be done on-the-fly later with a unified 232795fab37eSRobert Watson * buffer cache. 232895fab37eSRobert Watson */ 232995fab37eSRobert Watson static void 233095fab37eSRobert Watson mac_relabel_cred(struct ucred *cred, struct label *newlabel) 233195fab37eSRobert Watson { 233295fab37eSRobert Watson 233395fab37eSRobert Watson MAC_PERFORM(relabel_cred, cred, newlabel); 233495fab37eSRobert Watson } 233595fab37eSRobert Watson 233695fab37eSRobert Watson void 233795fab37eSRobert Watson mac_relabel_vnode(struct ucred *cred, struct vnode *vp, struct label *newlabel) 233895fab37eSRobert Watson { 233995fab37eSRobert Watson 234095fab37eSRobert Watson MAC_PERFORM(relabel_vnode, cred, vp, &vp->v_label, newlabel); 234195fab37eSRobert Watson } 234295fab37eSRobert Watson 234395fab37eSRobert Watson void 234495fab37eSRobert Watson mac_create_ifnet(struct ifnet *ifnet) 234595fab37eSRobert Watson { 234695fab37eSRobert Watson 234795fab37eSRobert Watson MAC_PERFORM(create_ifnet, ifnet, &ifnet->if_label); 234895fab37eSRobert Watson } 234995fab37eSRobert Watson 235095fab37eSRobert Watson void 235195fab37eSRobert Watson mac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d) 235295fab37eSRobert Watson { 235395fab37eSRobert Watson 235495fab37eSRobert Watson MAC_PERFORM(create_bpfdesc, cred, bpf_d, &bpf_d->bd_label); 235595fab37eSRobert Watson } 235695fab37eSRobert Watson 235795fab37eSRobert Watson void 235895fab37eSRobert Watson mac_create_socket(struct ucred *cred, struct socket *socket) 235995fab37eSRobert Watson { 236095fab37eSRobert Watson 236195fab37eSRobert Watson MAC_PERFORM(create_socket, cred, socket, &socket->so_label); 236295fab37eSRobert Watson } 236395fab37eSRobert Watson 236495fab37eSRobert Watson void 236595fab37eSRobert Watson mac_create_pipe(struct ucred *cred, struct pipe *pipe) 236695fab37eSRobert Watson { 236795fab37eSRobert Watson 236895fab37eSRobert Watson MAC_PERFORM(create_pipe, cred, pipe, pipe->pipe_label); 236995fab37eSRobert Watson } 237095fab37eSRobert Watson 237195fab37eSRobert Watson void 237295fab37eSRobert Watson mac_create_socket_from_socket(struct socket *oldsocket, 237395fab37eSRobert Watson struct socket *newsocket) 237495fab37eSRobert Watson { 237595fab37eSRobert Watson 237695fab37eSRobert Watson MAC_PERFORM(create_socket_from_socket, oldsocket, &oldsocket->so_label, 237795fab37eSRobert Watson newsocket, &newsocket->so_label); 237895fab37eSRobert Watson } 237995fab37eSRobert Watson 238095fab37eSRobert Watson static void 238195fab37eSRobert Watson mac_relabel_socket(struct ucred *cred, struct socket *socket, 238295fab37eSRobert Watson struct label *newlabel) 238395fab37eSRobert Watson { 238495fab37eSRobert Watson 238595fab37eSRobert Watson MAC_PERFORM(relabel_socket, cred, socket, &socket->so_label, newlabel); 238695fab37eSRobert Watson } 238795fab37eSRobert Watson 238895fab37eSRobert Watson static void 238995fab37eSRobert Watson mac_relabel_pipe(struct ucred *cred, struct pipe *pipe, struct label *newlabel) 239095fab37eSRobert Watson { 239195fab37eSRobert Watson 239295fab37eSRobert Watson MAC_PERFORM(relabel_pipe, cred, pipe, pipe->pipe_label, newlabel); 239395fab37eSRobert Watson } 239495fab37eSRobert Watson 239595fab37eSRobert Watson void 239695fab37eSRobert Watson mac_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct socket *socket) 239795fab37eSRobert Watson { 239895fab37eSRobert Watson 239995fab37eSRobert Watson MAC_PERFORM(set_socket_peer_from_mbuf, mbuf, &mbuf->m_pkthdr.label, 240095fab37eSRobert Watson socket, &socket->so_peerlabel); 240195fab37eSRobert Watson } 240295fab37eSRobert Watson 240395fab37eSRobert Watson void 240495fab37eSRobert Watson mac_set_socket_peer_from_socket(struct socket *oldsocket, 240595fab37eSRobert Watson struct socket *newsocket) 240695fab37eSRobert Watson { 240795fab37eSRobert Watson 240895fab37eSRobert Watson MAC_PERFORM(set_socket_peer_from_socket, oldsocket, 240995fab37eSRobert Watson &oldsocket->so_label, newsocket, &newsocket->so_peerlabel); 241095fab37eSRobert Watson } 241195fab37eSRobert Watson 241295fab37eSRobert Watson void 241395fab37eSRobert Watson mac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram) 241495fab37eSRobert Watson { 241595fab37eSRobert Watson 241695fab37eSRobert Watson MAC_PERFORM(create_datagram_from_ipq, ipq, &ipq->ipq_label, 241795fab37eSRobert Watson datagram, &datagram->m_pkthdr.label); 241895fab37eSRobert Watson } 241995fab37eSRobert Watson 242095fab37eSRobert Watson void 242195fab37eSRobert Watson mac_create_fragment(struct mbuf *datagram, struct mbuf *fragment) 242295fab37eSRobert Watson { 242395fab37eSRobert Watson 242495fab37eSRobert Watson MAC_PERFORM(create_fragment, datagram, &datagram->m_pkthdr.label, 242595fab37eSRobert Watson fragment, &fragment->m_pkthdr.label); 242695fab37eSRobert Watson } 242795fab37eSRobert Watson 242895fab37eSRobert Watson void 242995fab37eSRobert Watson mac_create_ipq(struct mbuf *fragment, struct ipq *ipq) 243095fab37eSRobert Watson { 243195fab37eSRobert Watson 243295fab37eSRobert Watson MAC_PERFORM(create_ipq, fragment, &fragment->m_pkthdr.label, ipq, 243395fab37eSRobert Watson &ipq->ipq_label); 243495fab37eSRobert Watson } 243595fab37eSRobert Watson 243695fab37eSRobert Watson void 243795fab37eSRobert Watson mac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf) 243895fab37eSRobert Watson { 243995fab37eSRobert Watson 244095fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_mbuf, oldmbuf, &oldmbuf->m_pkthdr.label, 244195fab37eSRobert Watson newmbuf, &newmbuf->m_pkthdr.label); 244295fab37eSRobert Watson } 244395fab37eSRobert Watson 244495fab37eSRobert Watson void 244595fab37eSRobert Watson mac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *mbuf) 244695fab37eSRobert Watson { 244795fab37eSRobert Watson 244895fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_bpfdesc, bpf_d, &bpf_d->bd_label, mbuf, 244995fab37eSRobert Watson &mbuf->m_pkthdr.label); 245095fab37eSRobert Watson } 245195fab37eSRobert Watson 245295fab37eSRobert Watson void 245395fab37eSRobert Watson mac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *mbuf) 245495fab37eSRobert Watson { 245595fab37eSRobert Watson 245695fab37eSRobert Watson MAC_PERFORM(create_mbuf_linklayer, ifnet, &ifnet->if_label, mbuf, 245795fab37eSRobert Watson &mbuf->m_pkthdr.label); 245895fab37eSRobert Watson } 245995fab37eSRobert Watson 246095fab37eSRobert Watson void 246195fab37eSRobert Watson mac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *mbuf) 246295fab37eSRobert Watson { 246395fab37eSRobert Watson 246495fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_ifnet, ifnet, &ifnet->if_label, mbuf, 246595fab37eSRobert Watson &mbuf->m_pkthdr.label); 246695fab37eSRobert Watson } 246795fab37eSRobert Watson 246895fab37eSRobert Watson void 246995fab37eSRobert Watson mac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, struct ifnet *ifnet, 247095fab37eSRobert Watson struct mbuf *newmbuf) 247195fab37eSRobert Watson { 247295fab37eSRobert Watson 247395fab37eSRobert Watson MAC_PERFORM(create_mbuf_multicast_encap, oldmbuf, 247495fab37eSRobert Watson &oldmbuf->m_pkthdr.label, ifnet, &ifnet->if_label, newmbuf, 247595fab37eSRobert Watson &newmbuf->m_pkthdr.label); 247695fab37eSRobert Watson } 247795fab37eSRobert Watson 247895fab37eSRobert Watson void 247995fab37eSRobert Watson mac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf) 248095fab37eSRobert Watson { 248195fab37eSRobert Watson 248295fab37eSRobert Watson MAC_PERFORM(create_mbuf_netlayer, oldmbuf, &oldmbuf->m_pkthdr.label, 248395fab37eSRobert Watson newmbuf, &newmbuf->m_pkthdr.label); 248495fab37eSRobert Watson } 248595fab37eSRobert Watson 248695fab37eSRobert Watson int 248795fab37eSRobert Watson mac_fragment_match(struct mbuf *fragment, struct ipq *ipq) 248895fab37eSRobert Watson { 248995fab37eSRobert Watson int result; 249095fab37eSRobert Watson 249195fab37eSRobert Watson result = 1; 249295fab37eSRobert Watson MAC_BOOLEAN(fragment_match, &&, fragment, &fragment->m_pkthdr.label, 249395fab37eSRobert Watson ipq, &ipq->ipq_label); 249495fab37eSRobert Watson 249595fab37eSRobert Watson return (result); 249695fab37eSRobert Watson } 249795fab37eSRobert Watson 249895fab37eSRobert Watson void 249995fab37eSRobert Watson mac_update_ipq(struct mbuf *fragment, struct ipq *ipq) 250095fab37eSRobert Watson { 250195fab37eSRobert Watson 250295fab37eSRobert Watson MAC_PERFORM(update_ipq, fragment, &fragment->m_pkthdr.label, ipq, 250395fab37eSRobert Watson &ipq->ipq_label); 250495fab37eSRobert Watson } 250595fab37eSRobert Watson 250695fab37eSRobert Watson void 250795fab37eSRobert Watson mac_create_mbuf_from_socket(struct socket *socket, struct mbuf *mbuf) 250895fab37eSRobert Watson { 250995fab37eSRobert Watson 251095fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_socket, socket, &socket->so_label, mbuf, 251195fab37eSRobert Watson &mbuf->m_pkthdr.label); 251295fab37eSRobert Watson } 251395fab37eSRobert Watson 251495fab37eSRobert Watson void 251595fab37eSRobert Watson mac_create_mount(struct ucred *cred, struct mount *mp) 251695fab37eSRobert Watson { 251795fab37eSRobert Watson 251895fab37eSRobert Watson MAC_PERFORM(create_mount, cred, mp, &mp->mnt_mntlabel, 251995fab37eSRobert Watson &mp->mnt_fslabel); 252095fab37eSRobert Watson } 252195fab37eSRobert Watson 252295fab37eSRobert Watson void 252395fab37eSRobert Watson mac_create_root_mount(struct ucred *cred, struct mount *mp) 252495fab37eSRobert Watson { 252595fab37eSRobert Watson 252695fab37eSRobert Watson MAC_PERFORM(create_root_mount, cred, mp, &mp->mnt_mntlabel, 252795fab37eSRobert Watson &mp->mnt_fslabel); 252895fab37eSRobert Watson } 252995fab37eSRobert Watson 253095fab37eSRobert Watson int 253195fab37eSRobert Watson mac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet) 253295fab37eSRobert Watson { 253395fab37eSRobert Watson int error; 253495fab37eSRobert Watson 253595fab37eSRobert Watson if (!mac_enforce_network) 253695fab37eSRobert Watson return (0); 253795fab37eSRobert Watson 253895fab37eSRobert Watson MAC_CHECK(check_bpfdesc_receive, bpf_d, &bpf_d->bd_label, ifnet, 253995fab37eSRobert Watson &ifnet->if_label); 254095fab37eSRobert Watson 254195fab37eSRobert Watson return (error); 254295fab37eSRobert Watson } 254395fab37eSRobert Watson 254495fab37eSRobert Watson static int 254595fab37eSRobert Watson mac_check_cred_relabel(struct ucred *cred, struct label *newlabel) 254695fab37eSRobert Watson { 254795fab37eSRobert Watson int error; 254895fab37eSRobert Watson 254995fab37eSRobert Watson MAC_CHECK(check_cred_relabel, cred, newlabel); 255095fab37eSRobert Watson 255195fab37eSRobert Watson return (error); 255295fab37eSRobert Watson } 255395fab37eSRobert Watson 255495fab37eSRobert Watson int 255595fab37eSRobert Watson mac_check_cred_visible(struct ucred *u1, struct ucred *u2) 255695fab37eSRobert Watson { 255795fab37eSRobert Watson int error; 255895fab37eSRobert Watson 255995fab37eSRobert Watson if (!mac_enforce_process) 256095fab37eSRobert Watson return (0); 256195fab37eSRobert Watson 256295fab37eSRobert Watson MAC_CHECK(check_cred_visible, u1, u2); 256395fab37eSRobert Watson 256495fab37eSRobert Watson return (error); 256595fab37eSRobert Watson } 256695fab37eSRobert Watson 256795fab37eSRobert Watson int 256895fab37eSRobert Watson mac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *mbuf) 256995fab37eSRobert Watson { 257095fab37eSRobert Watson int error; 257195fab37eSRobert Watson 257295fab37eSRobert Watson if (!mac_enforce_network) 257395fab37eSRobert Watson return (0); 257495fab37eSRobert Watson 257595fab37eSRobert Watson KASSERT(mbuf->m_flags & M_PKTHDR, ("packet has no pkthdr")); 257695fab37eSRobert Watson if (!(mbuf->m_pkthdr.label.l_flags & MAC_FLAG_INITIALIZED)) 257795fab37eSRobert Watson printf("%s%d: not initialized\n", ifnet->if_name, 257895fab37eSRobert Watson ifnet->if_unit); 257995fab37eSRobert Watson 258095fab37eSRobert Watson MAC_CHECK(check_ifnet_transmit, ifnet, &ifnet->if_label, mbuf, 258195fab37eSRobert Watson &mbuf->m_pkthdr.label); 258295fab37eSRobert Watson 258395fab37eSRobert Watson return (error); 258495fab37eSRobert Watson } 258595fab37eSRobert Watson 258695fab37eSRobert Watson int 258795fab37eSRobert Watson mac_check_mount_stat(struct ucred *cred, struct mount *mount) 258895fab37eSRobert Watson { 258995fab37eSRobert Watson int error; 259095fab37eSRobert Watson 259195fab37eSRobert Watson if (!mac_enforce_fs) 259295fab37eSRobert Watson return (0); 259395fab37eSRobert Watson 259495fab37eSRobert Watson MAC_CHECK(check_mount_stat, cred, mount, &mount->mnt_mntlabel); 259595fab37eSRobert Watson 259695fab37eSRobert Watson return (error); 259795fab37eSRobert Watson } 259895fab37eSRobert Watson 259995fab37eSRobert Watson int 260095fab37eSRobert Watson mac_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe, unsigned long cmd, 260195fab37eSRobert Watson void *data) 260295fab37eSRobert Watson { 260395fab37eSRobert Watson int error; 260495fab37eSRobert Watson 26051aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 26061aa37f53SRobert Watson 26071aa37f53SRobert Watson if (!mac_enforce_pipe) 26081aa37f53SRobert Watson return (0); 26091aa37f53SRobert Watson 261095fab37eSRobert Watson MAC_CHECK(check_pipe_ioctl, cred, pipe, pipe->pipe_label, cmd, data); 261195fab37eSRobert Watson 261295fab37eSRobert Watson return (error); 261395fab37eSRobert Watson } 261495fab37eSRobert Watson 261595fab37eSRobert Watson int 2616c024c3eeSRobert Watson mac_check_pipe_poll(struct ucred *cred, struct pipe *pipe) 261795fab37eSRobert Watson { 261895fab37eSRobert Watson int error; 261995fab37eSRobert Watson 26201aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 26211aa37f53SRobert Watson 26221aa37f53SRobert Watson if (!mac_enforce_pipe) 26231aa37f53SRobert Watson return (0); 26241aa37f53SRobert Watson 2625c024c3eeSRobert Watson MAC_CHECK(check_pipe_poll, cred, pipe, pipe->pipe_label); 2626c024c3eeSRobert Watson 2627c024c3eeSRobert Watson return (error); 2628c024c3eeSRobert Watson } 2629c024c3eeSRobert Watson 2630c024c3eeSRobert Watson int 2631c024c3eeSRobert Watson mac_check_pipe_read(struct ucred *cred, struct pipe *pipe) 2632c024c3eeSRobert Watson { 2633c024c3eeSRobert Watson int error; 2634c024c3eeSRobert Watson 26351aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 26361aa37f53SRobert Watson 26371aa37f53SRobert Watson if (!mac_enforce_pipe) 26381aa37f53SRobert Watson return (0); 26391aa37f53SRobert Watson 2640c024c3eeSRobert Watson MAC_CHECK(check_pipe_read, cred, pipe, pipe->pipe_label); 264195fab37eSRobert Watson 264295fab37eSRobert Watson return (error); 264395fab37eSRobert Watson } 264495fab37eSRobert Watson 264595fab37eSRobert Watson static int 264695fab37eSRobert Watson mac_check_pipe_relabel(struct ucred *cred, struct pipe *pipe, 264795fab37eSRobert Watson struct label *newlabel) 264895fab37eSRobert Watson { 264995fab37eSRobert Watson int error; 265095fab37eSRobert Watson 26511aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 26521aa37f53SRobert Watson 26531aa37f53SRobert Watson if (!mac_enforce_pipe) 26541aa37f53SRobert Watson return (0); 26551aa37f53SRobert Watson 265695fab37eSRobert Watson MAC_CHECK(check_pipe_relabel, cred, pipe, pipe->pipe_label, newlabel); 265795fab37eSRobert Watson 265895fab37eSRobert Watson return (error); 265995fab37eSRobert Watson } 266095fab37eSRobert Watson 266195fab37eSRobert Watson int 2662c024c3eeSRobert Watson mac_check_pipe_stat(struct ucred *cred, struct pipe *pipe) 2663c024c3eeSRobert Watson { 2664c024c3eeSRobert Watson int error; 2665c024c3eeSRobert Watson 26661aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 26671aa37f53SRobert Watson 26681aa37f53SRobert Watson if (!mac_enforce_pipe) 26691aa37f53SRobert Watson return (0); 26701aa37f53SRobert Watson 2671c024c3eeSRobert Watson MAC_CHECK(check_pipe_stat, cred, pipe, pipe->pipe_label); 2672c024c3eeSRobert Watson 2673c024c3eeSRobert Watson return (error); 2674c024c3eeSRobert Watson } 2675c024c3eeSRobert Watson 2676c024c3eeSRobert Watson int 2677c024c3eeSRobert Watson mac_check_pipe_write(struct ucred *cred, struct pipe *pipe) 2678c024c3eeSRobert Watson { 2679c024c3eeSRobert Watson int error; 2680c024c3eeSRobert Watson 26811aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 26821aa37f53SRobert Watson 26831aa37f53SRobert Watson if (!mac_enforce_pipe) 26841aa37f53SRobert Watson return (0); 26851aa37f53SRobert Watson 2686c024c3eeSRobert Watson MAC_CHECK(check_pipe_write, cred, pipe, pipe->pipe_label); 2687c024c3eeSRobert Watson 2688c024c3eeSRobert Watson return (error); 2689c024c3eeSRobert Watson } 2690c024c3eeSRobert Watson 2691c024c3eeSRobert Watson int 269295fab37eSRobert Watson mac_check_proc_debug(struct ucred *cred, struct proc *proc) 269395fab37eSRobert Watson { 269495fab37eSRobert Watson int error; 269595fab37eSRobert Watson 2696b12baf55SRobert Watson PROC_LOCK_ASSERT(proc, MA_OWNED); 2697b12baf55SRobert Watson 269895fab37eSRobert Watson if (!mac_enforce_process) 269995fab37eSRobert Watson return (0); 270095fab37eSRobert Watson 270195fab37eSRobert Watson MAC_CHECK(check_proc_debug, cred, proc); 270295fab37eSRobert Watson 270395fab37eSRobert Watson return (error); 270495fab37eSRobert Watson } 270595fab37eSRobert Watson 270695fab37eSRobert Watson int 270795fab37eSRobert Watson mac_check_proc_sched(struct ucred *cred, struct proc *proc) 270895fab37eSRobert Watson { 270995fab37eSRobert Watson int error; 271095fab37eSRobert Watson 2711b12baf55SRobert Watson PROC_LOCK_ASSERT(proc, MA_OWNED); 2712b12baf55SRobert Watson 271395fab37eSRobert Watson if (!mac_enforce_process) 271495fab37eSRobert Watson return (0); 271595fab37eSRobert Watson 271695fab37eSRobert Watson MAC_CHECK(check_proc_sched, cred, proc); 271795fab37eSRobert Watson 271895fab37eSRobert Watson return (error); 271995fab37eSRobert Watson } 272095fab37eSRobert Watson 272195fab37eSRobert Watson int 272295fab37eSRobert Watson mac_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 272395fab37eSRobert Watson { 272495fab37eSRobert Watson int error; 272595fab37eSRobert Watson 2726b12baf55SRobert Watson PROC_LOCK_ASSERT(proc, MA_OWNED); 2727b12baf55SRobert Watson 272895fab37eSRobert Watson if (!mac_enforce_process) 272995fab37eSRobert Watson return (0); 273095fab37eSRobert Watson 273195fab37eSRobert Watson MAC_CHECK(check_proc_signal, cred, proc, signum); 273295fab37eSRobert Watson 273395fab37eSRobert Watson return (error); 273495fab37eSRobert Watson } 273595fab37eSRobert Watson 273695fab37eSRobert Watson int 273795fab37eSRobert Watson mac_check_socket_bind(struct ucred *ucred, struct socket *socket, 273895fab37eSRobert Watson struct sockaddr *sockaddr) 273995fab37eSRobert Watson { 274095fab37eSRobert Watson int error; 274195fab37eSRobert Watson 274295fab37eSRobert Watson if (!mac_enforce_socket) 274395fab37eSRobert Watson return (0); 274495fab37eSRobert Watson 274595fab37eSRobert Watson MAC_CHECK(check_socket_bind, ucred, socket, &socket->so_label, 274695fab37eSRobert Watson sockaddr); 274795fab37eSRobert Watson 274895fab37eSRobert Watson return (error); 274995fab37eSRobert Watson } 275095fab37eSRobert Watson 275195fab37eSRobert Watson int 275295fab37eSRobert Watson mac_check_socket_connect(struct ucred *cred, struct socket *socket, 275395fab37eSRobert Watson struct sockaddr *sockaddr) 275495fab37eSRobert Watson { 275595fab37eSRobert Watson int error; 275695fab37eSRobert Watson 275795fab37eSRobert Watson if (!mac_enforce_socket) 275895fab37eSRobert Watson return (0); 275995fab37eSRobert Watson 276095fab37eSRobert Watson MAC_CHECK(check_socket_connect, cred, socket, &socket->so_label, 276195fab37eSRobert Watson sockaddr); 276295fab37eSRobert Watson 276395fab37eSRobert Watson return (error); 276495fab37eSRobert Watson } 276595fab37eSRobert Watson 276695fab37eSRobert Watson int 2767d61198e4SRobert Watson mac_check_socket_deliver(struct socket *socket, struct mbuf *mbuf) 2768d61198e4SRobert Watson { 2769d61198e4SRobert Watson int error; 2770d61198e4SRobert Watson 2771d61198e4SRobert Watson if (!mac_enforce_socket) 2772d61198e4SRobert Watson return (0); 2773d61198e4SRobert Watson 2774d61198e4SRobert Watson MAC_CHECK(check_socket_deliver, socket, &socket->so_label, mbuf, 2775d61198e4SRobert Watson &mbuf->m_pkthdr.label); 2776d61198e4SRobert Watson 2777d61198e4SRobert Watson return (error); 2778d61198e4SRobert Watson } 2779d61198e4SRobert Watson 2780d61198e4SRobert Watson int 278195fab37eSRobert Watson mac_check_socket_listen(struct ucred *cred, struct socket *socket) 278295fab37eSRobert Watson { 278395fab37eSRobert Watson int error; 278495fab37eSRobert Watson 278595fab37eSRobert Watson if (!mac_enforce_socket) 278695fab37eSRobert Watson return (0); 278795fab37eSRobert Watson 278895fab37eSRobert Watson MAC_CHECK(check_socket_listen, cred, socket, &socket->so_label); 278995fab37eSRobert Watson return (error); 279095fab37eSRobert Watson } 279195fab37eSRobert Watson 279295fab37eSRobert Watson static int 279395fab37eSRobert Watson mac_check_socket_relabel(struct ucred *cred, struct socket *socket, 279495fab37eSRobert Watson struct label *newlabel) 279595fab37eSRobert Watson { 279695fab37eSRobert Watson int error; 279795fab37eSRobert Watson 279895fab37eSRobert Watson MAC_CHECK(check_socket_relabel, cred, socket, &socket->so_label, 279995fab37eSRobert Watson newlabel); 280095fab37eSRobert Watson 280195fab37eSRobert Watson return (error); 280295fab37eSRobert Watson } 280395fab37eSRobert Watson 280495fab37eSRobert Watson int 280595fab37eSRobert Watson mac_check_socket_visible(struct ucred *cred, struct socket *socket) 280695fab37eSRobert Watson { 280795fab37eSRobert Watson int error; 280895fab37eSRobert Watson 280995fab37eSRobert Watson if (!mac_enforce_socket) 281095fab37eSRobert Watson return (0); 281195fab37eSRobert Watson 281295fab37eSRobert Watson MAC_CHECK(check_socket_visible, cred, socket, &socket->so_label); 281395fab37eSRobert Watson 281495fab37eSRobert Watson return (error); 281595fab37eSRobert Watson } 281695fab37eSRobert Watson 281795fab37eSRobert Watson int 281895fab37eSRobert Watson mac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, 281995fab37eSRobert Watson struct ifnet *ifnet) 282095fab37eSRobert Watson { 282195fab37eSRobert Watson struct mac label; 282295fab37eSRobert Watson int error; 282395fab37eSRobert Watson 282495fab37eSRobert Watson error = mac_externalize(&ifnet->if_label, &label); 282595fab37eSRobert Watson if (error) 282695fab37eSRobert Watson return (error); 282795fab37eSRobert Watson 282895fab37eSRobert Watson return (copyout(&label, ifr->ifr_ifru.ifru_data, sizeof(label))); 282995fab37eSRobert Watson } 283095fab37eSRobert Watson 283195fab37eSRobert Watson int 283295fab37eSRobert Watson mac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, 283395fab37eSRobert Watson struct ifnet *ifnet) 283495fab37eSRobert Watson { 283595fab37eSRobert Watson struct mac newlabel; 283695fab37eSRobert Watson struct label intlabel; 283795fab37eSRobert Watson int error; 283895fab37eSRobert Watson 283995fab37eSRobert Watson error = copyin(ifr->ifr_ifru.ifru_data, &newlabel, sizeof(newlabel)); 284095fab37eSRobert Watson if (error) 284195fab37eSRobert Watson return (error); 284295fab37eSRobert Watson 284395fab37eSRobert Watson error = mac_internalize(&intlabel, &newlabel); 284495fab37eSRobert Watson if (error) 284595fab37eSRobert Watson return (error); 284695fab37eSRobert Watson 284795fab37eSRobert Watson /* 284895fab37eSRobert Watson * XXX: Note that this is a redundant privilege check, since 284995fab37eSRobert Watson * policies impose this check themselves if required by the 285095fab37eSRobert Watson * policy. Eventually, this should go away. 285195fab37eSRobert Watson */ 285295fab37eSRobert Watson error = suser_cred(cred, 0); 285395fab37eSRobert Watson if (error) 285495fab37eSRobert Watson goto out; 285595fab37eSRobert Watson 285695fab37eSRobert Watson MAC_CHECK(check_ifnet_relabel, cred, ifnet, &ifnet->if_label, 285795fab37eSRobert Watson &intlabel); 285895fab37eSRobert Watson if (error) 285995fab37eSRobert Watson goto out; 286095fab37eSRobert Watson 286195fab37eSRobert Watson MAC_PERFORM(relabel_ifnet, cred, ifnet, &ifnet->if_label, &intlabel); 286295fab37eSRobert Watson 286395fab37eSRobert Watson out: 286495fab37eSRobert Watson mac_destroy_temp(&intlabel); 286595fab37eSRobert Watson return (error); 286695fab37eSRobert Watson } 286795fab37eSRobert Watson 286895fab37eSRobert Watson void 286995fab37eSRobert Watson mac_create_devfs_vnode(struct devfs_dirent *de, struct vnode *vp) 287095fab37eSRobert Watson { 287195fab37eSRobert Watson 287295fab37eSRobert Watson MAC_PERFORM(create_devfs_vnode, de, &de->de_label, vp, &vp->v_label); 287395fab37eSRobert Watson } 287495fab37eSRobert Watson 287595fab37eSRobert Watson void 287695fab37eSRobert Watson mac_create_devfs_device(dev_t dev, struct devfs_dirent *de) 287795fab37eSRobert Watson { 287895fab37eSRobert Watson 287995fab37eSRobert Watson MAC_PERFORM(create_devfs_device, dev, de, &de->de_label); 288095fab37eSRobert Watson } 288195fab37eSRobert Watson 288295fab37eSRobert Watson static int 288395fab37eSRobert Watson mac_stdcreatevnode_ea(struct vnode *vp) 288495fab37eSRobert Watson { 288595fab37eSRobert Watson int error; 288695fab37eSRobert Watson 288795fab37eSRobert Watson MAC_CHECK(stdcreatevnode_ea, vp, &vp->v_label); 288895fab37eSRobert Watson 288995fab37eSRobert Watson return (error); 289095fab37eSRobert Watson } 289195fab37eSRobert Watson 289295fab37eSRobert Watson void 289395fab37eSRobert Watson mac_create_devfs_directory(char *dirname, int dirnamelen, 289495fab37eSRobert Watson struct devfs_dirent *de) 289595fab37eSRobert Watson { 289695fab37eSRobert Watson 289795fab37eSRobert Watson MAC_PERFORM(create_devfs_directory, dirname, dirnamelen, de, 289895fab37eSRobert Watson &de->de_label); 289995fab37eSRobert Watson } 290095fab37eSRobert Watson 290195fab37eSRobert Watson /* 290295fab37eSRobert Watson * When a new vnode is created, this call will initialize its label. 290395fab37eSRobert Watson */ 290495fab37eSRobert Watson void 290595fab37eSRobert Watson mac_create_vnode(struct ucred *cred, struct vnode *parent, 290695fab37eSRobert Watson struct vnode *child) 290795fab37eSRobert Watson { 290895fab37eSRobert Watson int error; 290995fab37eSRobert Watson 291095fab37eSRobert Watson ASSERT_VOP_LOCKED(parent, "mac_create_vnode"); 291195fab37eSRobert Watson ASSERT_VOP_LOCKED(child, "mac_create_vnode"); 291295fab37eSRobert Watson 291395fab37eSRobert Watson error = vn_refreshlabel(parent, cred); 291495fab37eSRobert Watson if (error) { 291595fab37eSRobert Watson printf("mac_create_vnode: vn_refreshlabel returned %d\n", 291695fab37eSRobert Watson error); 291795fab37eSRobert Watson printf("mac_create_vnode: using old vnode label\n"); 291895fab37eSRobert Watson } 291995fab37eSRobert Watson 292095fab37eSRobert Watson MAC_PERFORM(create_vnode, cred, parent, &parent->v_label, child, 292195fab37eSRobert Watson &child->v_label); 292295fab37eSRobert Watson } 292395fab37eSRobert Watson 292495fab37eSRobert Watson int 292595fab37eSRobert Watson mac_setsockopt_label_set(struct ucred *cred, struct socket *so, 292695fab37eSRobert Watson struct mac *extmac) 292795fab37eSRobert Watson { 292895fab37eSRobert Watson struct label intlabel; 292995fab37eSRobert Watson int error; 293095fab37eSRobert Watson 293195fab37eSRobert Watson error = mac_internalize(&intlabel, extmac); 293295fab37eSRobert Watson if (error) 293395fab37eSRobert Watson return (error); 293495fab37eSRobert Watson 293595fab37eSRobert Watson mac_check_socket_relabel(cred, so, &intlabel); 293695fab37eSRobert Watson if (error) { 293795fab37eSRobert Watson mac_destroy_temp(&intlabel); 293895fab37eSRobert Watson return (error); 293995fab37eSRobert Watson } 294095fab37eSRobert Watson 294195fab37eSRobert Watson mac_relabel_socket(cred, so, &intlabel); 294295fab37eSRobert Watson 294395fab37eSRobert Watson mac_destroy_temp(&intlabel); 294495fab37eSRobert Watson return (0); 294595fab37eSRobert Watson } 294695fab37eSRobert Watson 294795fab37eSRobert Watson int 294895fab37eSRobert Watson mac_pipe_label_set(struct ucred *cred, struct pipe *pipe, struct label *label) 294995fab37eSRobert Watson { 295095fab37eSRobert Watson int error; 295195fab37eSRobert Watson 29521aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 29531aa37f53SRobert Watson 295495fab37eSRobert Watson error = mac_check_pipe_relabel(cred, pipe, label); 295595fab37eSRobert Watson if (error) 295695fab37eSRobert Watson return (error); 295795fab37eSRobert Watson 295895fab37eSRobert Watson mac_relabel_pipe(cred, pipe, label); 295995fab37eSRobert Watson 296095fab37eSRobert Watson return (0); 296195fab37eSRobert Watson } 296295fab37eSRobert Watson 296395fab37eSRobert Watson int 296495fab37eSRobert Watson mac_getsockopt_label_get(struct ucred *cred, struct socket *so, 296595fab37eSRobert Watson struct mac *extmac) 296695fab37eSRobert Watson { 296795fab37eSRobert Watson 296895fab37eSRobert Watson return (mac_externalize(&so->so_label, extmac)); 296995fab37eSRobert Watson } 297095fab37eSRobert Watson 297195fab37eSRobert Watson int 297295fab37eSRobert Watson mac_getsockopt_peerlabel_get(struct ucred *cred, struct socket *so, 297395fab37eSRobert Watson struct mac *extmac) 297495fab37eSRobert Watson { 297595fab37eSRobert Watson 297695fab37eSRobert Watson return (mac_externalize(&so->so_peerlabel, extmac)); 297795fab37eSRobert Watson } 297895fab37eSRobert Watson 297995fab37eSRobert Watson /* 298095fab37eSRobert Watson * Implementation of VOP_SETLABEL() that relies on extended attributes 298195fab37eSRobert Watson * to store label data. Can be referenced by filesystems supporting 298295fab37eSRobert Watson * extended attributes. 298395fab37eSRobert Watson */ 298495fab37eSRobert Watson int 298595fab37eSRobert Watson vop_stdsetlabel_ea(struct vop_setlabel_args *ap) 298695fab37eSRobert Watson { 298795fab37eSRobert Watson struct vnode *vp = ap->a_vp; 298895fab37eSRobert Watson struct label *intlabel = ap->a_label; 298995fab37eSRobert Watson struct mac extmac; 299095fab37eSRobert Watson int error; 299195fab37eSRobert Watson 299295fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "vop_stdsetlabel_ea"); 299395fab37eSRobert Watson 299495fab37eSRobert Watson /* 299595fab37eSRobert Watson * XXX: Eventually call out to EA check/set calls here. 299695fab37eSRobert Watson * Be particularly careful to avoid race conditions, 299795fab37eSRobert Watson * consistency problems, and stability problems when 299895fab37eSRobert Watson * dealing with multiple EAs. In particular, we require 299995fab37eSRobert Watson * the ability to write multiple EAs on the same file in 300095fab37eSRobert Watson * a single transaction, which the current EA interface 300195fab37eSRobert Watson * does not provide. 300295fab37eSRobert Watson */ 300395fab37eSRobert Watson 300495fab37eSRobert Watson error = mac_externalize(intlabel, &extmac); 300595fab37eSRobert Watson if (error) 300695fab37eSRobert Watson return (error); 300795fab37eSRobert Watson 300895fab37eSRobert Watson error = vn_extattr_set(vp, IO_NODELOCKED, 300995fab37eSRobert Watson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 301095fab37eSRobert Watson sizeof(extmac), (char *)&extmac, curthread); 301195fab37eSRobert Watson if (error) 301295fab37eSRobert Watson return (error); 301395fab37eSRobert Watson 301495fab37eSRobert Watson mac_relabel_vnode(ap->a_cred, vp, intlabel); 301595fab37eSRobert Watson 3016e6e370a7SJeff Roberson vp->v_vflag |= VV_CACHEDLABEL; 301795fab37eSRobert Watson 301895fab37eSRobert Watson return (0); 301995fab37eSRobert Watson } 302095fab37eSRobert Watson 302195fab37eSRobert Watson static int 302295fab37eSRobert Watson vn_setlabel(struct vnode *vp, struct label *intlabel, struct ucred *cred) 302395fab37eSRobert Watson { 302495fab37eSRobert Watson int error; 302595fab37eSRobert Watson 302695fab37eSRobert Watson if (vp->v_mount == NULL) { 302795fab37eSRobert Watson /* printf("vn_setlabel: null v_mount\n"); */ 302806be2aaaSNate Lawson if (vp->v_type != VNON) 302906be2aaaSNate Lawson printf("vn_setlabel: null v_mount with non-VNON\n"); 303095fab37eSRobert Watson return (EBADF); 303195fab37eSRobert Watson } 303295fab37eSRobert Watson 303395fab37eSRobert Watson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) 303495fab37eSRobert Watson return (EOPNOTSUPP); 303595fab37eSRobert Watson 303695fab37eSRobert Watson /* 303795fab37eSRobert Watson * Multi-phase commit. First check the policies to confirm the 303895fab37eSRobert Watson * change is OK. Then commit via the filesystem. Finally, 303995fab37eSRobert Watson * update the actual vnode label. Question: maybe the filesystem 304095fab37eSRobert Watson * should update the vnode at the end as part of VOP_SETLABEL()? 304195fab37eSRobert Watson */ 304295fab37eSRobert Watson error = mac_check_vnode_relabel(cred, vp, intlabel); 304395fab37eSRobert Watson if (error) 304495fab37eSRobert Watson return (error); 304595fab37eSRobert Watson 304695fab37eSRobert Watson /* 304795fab37eSRobert Watson * VADMIN provides the opportunity for the filesystem to make 304895fab37eSRobert Watson * decisions about who is and is not able to modify labels 304995fab37eSRobert Watson * and protections on files. This might not be right. We can't 305095fab37eSRobert Watson * assume VOP_SETLABEL() will do it, because we might implement 305195fab37eSRobert Watson * that as part of vop_stdsetlabel_ea(). 305295fab37eSRobert Watson */ 305395fab37eSRobert Watson error = VOP_ACCESS(vp, VADMIN, cred, curthread); 305495fab37eSRobert Watson if (error) 305595fab37eSRobert Watson return (error); 305695fab37eSRobert Watson 305795fab37eSRobert Watson error = VOP_SETLABEL(vp, intlabel, cred, curthread); 305895fab37eSRobert Watson if (error) 305995fab37eSRobert Watson return (error); 306095fab37eSRobert Watson 306195fab37eSRobert Watson return (0); 306295fab37eSRobert Watson } 306395fab37eSRobert Watson 306495fab37eSRobert Watson /* 306595fab37eSRobert Watson * MPSAFE 306695fab37eSRobert Watson */ 306795fab37eSRobert Watson int 306895fab37eSRobert Watson __mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 306995fab37eSRobert Watson { 307095fab37eSRobert Watson struct mac extmac; 307195fab37eSRobert Watson int error; 307295fab37eSRobert Watson 307395fab37eSRobert Watson error = mac_externalize(&td->td_ucred->cr_label, &extmac); 307495fab37eSRobert Watson if (error == 0) 307595fab37eSRobert Watson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 307695fab37eSRobert Watson 307795fab37eSRobert Watson return (error); 307895fab37eSRobert Watson } 307995fab37eSRobert Watson 308095fab37eSRobert Watson /* 308195fab37eSRobert Watson * MPSAFE 308295fab37eSRobert Watson */ 308395fab37eSRobert Watson int 308495fab37eSRobert Watson __mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 308595fab37eSRobert Watson { 308695fab37eSRobert Watson struct ucred *newcred, *oldcred; 308795fab37eSRobert Watson struct proc *p; 308895fab37eSRobert Watson struct mac extmac; 308995fab37eSRobert Watson struct label intlabel; 309095fab37eSRobert Watson int error; 309195fab37eSRobert Watson 309295fab37eSRobert Watson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 309395fab37eSRobert Watson if (error) 309495fab37eSRobert Watson return (error); 309595fab37eSRobert Watson 309695fab37eSRobert Watson error = mac_internalize(&intlabel, &extmac); 309795fab37eSRobert Watson if (error) 309895fab37eSRobert Watson return (error); 309995fab37eSRobert Watson 310095fab37eSRobert Watson newcred = crget(); 310195fab37eSRobert Watson 310295fab37eSRobert Watson p = td->td_proc; 310395fab37eSRobert Watson PROC_LOCK(p); 310495fab37eSRobert Watson oldcred = p->p_ucred; 310595fab37eSRobert Watson 310695fab37eSRobert Watson error = mac_check_cred_relabel(oldcred, &intlabel); 310795fab37eSRobert Watson if (error) { 310895fab37eSRobert Watson PROC_UNLOCK(p); 310995fab37eSRobert Watson mac_destroy_temp(&intlabel); 311095fab37eSRobert Watson crfree(newcred); 311195fab37eSRobert Watson return (error); 311295fab37eSRobert Watson } 311395fab37eSRobert Watson 311495fab37eSRobert Watson setsugid(p); 311595fab37eSRobert Watson crcopy(newcred, oldcred); 311695fab37eSRobert Watson mac_relabel_cred(newcred, &intlabel); 311795fab37eSRobert Watson p->p_ucred = newcred; 3118e5cb5e37SRobert Watson 3119e5cb5e37SRobert Watson /* 3120e5cb5e37SRobert Watson * Grab additional reference for use while revoking mmaps, prior 3121e5cb5e37SRobert Watson * to releasing the proc lock and sharing the cred. 3122e5cb5e37SRobert Watson */ 3123e5cb5e37SRobert Watson crhold(newcred); 312495fab37eSRobert Watson PROC_UNLOCK(p); 3125e5cb5e37SRobert Watson 312616140035SRobert Watson mtx_lock(&Giant); 3127e5cb5e37SRobert Watson mac_cred_mmapped_drop_perms(td, newcred); 312816140035SRobert Watson mtx_unlock(&Giant); 3129e5cb5e37SRobert Watson 3130e5cb5e37SRobert Watson crfree(newcred); /* Free revocation reference. */ 313195fab37eSRobert Watson crfree(oldcred); 313295fab37eSRobert Watson mac_destroy_temp(&intlabel); 313395fab37eSRobert Watson return (0); 313495fab37eSRobert Watson } 313595fab37eSRobert Watson 313695fab37eSRobert Watson /* 313795fab37eSRobert Watson * MPSAFE 313895fab37eSRobert Watson */ 313995fab37eSRobert Watson int 314095fab37eSRobert Watson __mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 314195fab37eSRobert Watson { 314295fab37eSRobert Watson struct file *fp; 314395fab37eSRobert Watson struct mac extmac; 314495fab37eSRobert Watson struct vnode *vp; 314595fab37eSRobert Watson struct pipe *pipe; 314695fab37eSRobert Watson int error; 314795fab37eSRobert Watson 314895fab37eSRobert Watson mtx_lock(&Giant); 314995fab37eSRobert Watson 315095fab37eSRobert Watson error = fget(td, SCARG(uap, fd), &fp); 315195fab37eSRobert Watson if (error) 315295fab37eSRobert Watson goto out; 315395fab37eSRobert Watson 315495fab37eSRobert Watson switch (fp->f_type) { 315595fab37eSRobert Watson case DTYPE_FIFO: 315695fab37eSRobert Watson case DTYPE_VNODE: 315795fab37eSRobert Watson vp = (struct vnode *)fp->f_data; 315895fab37eSRobert Watson 315995fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 316095fab37eSRobert Watson error = vn_refreshlabel(vp, td->td_ucred); 316195fab37eSRobert Watson if (error == 0) 316295fab37eSRobert Watson error = mac_externalize(&vp->v_label, &extmac); 316395fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 316495fab37eSRobert Watson break; 316595fab37eSRobert Watson case DTYPE_PIPE: 316695fab37eSRobert Watson pipe = (struct pipe *)fp->f_data; 316795fab37eSRobert Watson error = mac_externalize(pipe->pipe_label, &extmac); 316895fab37eSRobert Watson break; 316995fab37eSRobert Watson default: 317095fab37eSRobert Watson error = EINVAL; 317195fab37eSRobert Watson } 317295fab37eSRobert Watson 317395fab37eSRobert Watson if (error == 0) 317495fab37eSRobert Watson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 317595fab37eSRobert Watson 317695fab37eSRobert Watson fdrop(fp, td); 317795fab37eSRobert Watson 317895fab37eSRobert Watson out: 317995fab37eSRobert Watson mtx_unlock(&Giant); 318095fab37eSRobert Watson return (error); 318195fab37eSRobert Watson } 318295fab37eSRobert Watson 318395fab37eSRobert Watson /* 318495fab37eSRobert Watson * MPSAFE 318595fab37eSRobert Watson */ 318695fab37eSRobert Watson int 318795fab37eSRobert Watson __mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 318895fab37eSRobert Watson { 318995fab37eSRobert Watson struct nameidata nd; 319095fab37eSRobert Watson struct mac extmac; 319195fab37eSRobert Watson int error; 319295fab37eSRobert Watson 319395fab37eSRobert Watson mtx_lock(&Giant); 319495fab37eSRobert Watson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 319595fab37eSRobert Watson SCARG(uap, path_p), td); 319695fab37eSRobert Watson error = namei(&nd); 319795fab37eSRobert Watson if (error) 319895fab37eSRobert Watson goto out; 319995fab37eSRobert Watson 320095fab37eSRobert Watson error = vn_refreshlabel(nd.ni_vp, td->td_ucred); 320195fab37eSRobert Watson if (error == 0) 320295fab37eSRobert Watson error = mac_externalize(&nd.ni_vp->v_label, &extmac); 320395fab37eSRobert Watson NDFREE(&nd, 0); 320495fab37eSRobert Watson if (error) 320595fab37eSRobert Watson goto out; 320695fab37eSRobert Watson 320795fab37eSRobert Watson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 320895fab37eSRobert Watson 320995fab37eSRobert Watson out: 321095fab37eSRobert Watson mtx_unlock(&Giant); 321195fab37eSRobert Watson return (error); 321295fab37eSRobert Watson } 321395fab37eSRobert Watson 321495fab37eSRobert Watson /* 321595fab37eSRobert Watson * MPSAFE 321695fab37eSRobert Watson */ 321795fab37eSRobert Watson int 321895fab37eSRobert Watson __mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 321995fab37eSRobert Watson { 322095fab37eSRobert Watson struct file *fp; 322195fab37eSRobert Watson struct mac extmac; 322295fab37eSRobert Watson struct label intlabel; 322395fab37eSRobert Watson struct mount *mp; 322495fab37eSRobert Watson struct vnode *vp; 322595fab37eSRobert Watson struct pipe *pipe; 322695fab37eSRobert Watson int error; 322795fab37eSRobert Watson 322895fab37eSRobert Watson mtx_lock(&Giant); 322995fab37eSRobert Watson error = fget(td, SCARG(uap, fd), &fp); 323095fab37eSRobert Watson if (error) 323195fab37eSRobert Watson goto out1; 323295fab37eSRobert Watson 323395fab37eSRobert Watson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 323495fab37eSRobert Watson if (error) 323595fab37eSRobert Watson goto out2; 323695fab37eSRobert Watson 323795fab37eSRobert Watson error = mac_internalize(&intlabel, &extmac); 323895fab37eSRobert Watson if (error) 323995fab37eSRobert Watson goto out2; 324095fab37eSRobert Watson 324195fab37eSRobert Watson switch (fp->f_type) { 324295fab37eSRobert Watson case DTYPE_FIFO: 324395fab37eSRobert Watson case DTYPE_VNODE: 324495fab37eSRobert Watson vp = (struct vnode *)fp->f_data; 324595fab37eSRobert Watson error = vn_start_write(vp, &mp, V_WAIT | PCATCH); 324695fab37eSRobert Watson if (error != 0) 324795fab37eSRobert Watson break; 324895fab37eSRobert Watson 324995fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 325095fab37eSRobert Watson error = vn_setlabel(vp, &intlabel, td->td_ucred); 325195fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 325295fab37eSRobert Watson vn_finished_write(mp); 325395fab37eSRobert Watson mac_destroy_temp(&intlabel); 325495fab37eSRobert Watson break; 325595fab37eSRobert Watson case DTYPE_PIPE: 325695fab37eSRobert Watson pipe = (struct pipe *)fp->f_data; 32571aa37f53SRobert Watson PIPE_LOCK(pipe); 325895fab37eSRobert Watson error = mac_pipe_label_set(td->td_ucred, pipe, &intlabel); 32591aa37f53SRobert Watson PIPE_UNLOCK(pipe); 326095fab37eSRobert Watson break; 326195fab37eSRobert Watson default: 326295fab37eSRobert Watson error = EINVAL; 326395fab37eSRobert Watson } 326495fab37eSRobert Watson 326595fab37eSRobert Watson out2: 326695fab37eSRobert Watson fdrop(fp, td); 326795fab37eSRobert Watson out1: 326895fab37eSRobert Watson mtx_unlock(&Giant); 326995fab37eSRobert Watson return (error); 327095fab37eSRobert Watson } 327195fab37eSRobert Watson 327295fab37eSRobert Watson /* 327395fab37eSRobert Watson * MPSAFE 327495fab37eSRobert Watson */ 327595fab37eSRobert Watson int 327695fab37eSRobert Watson __mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 327795fab37eSRobert Watson { 327895fab37eSRobert Watson struct nameidata nd; 327995fab37eSRobert Watson struct mac extmac; 328095fab37eSRobert Watson struct label intlabel; 328195fab37eSRobert Watson struct mount *mp; 328295fab37eSRobert Watson int error; 328395fab37eSRobert Watson 328495fab37eSRobert Watson mtx_lock(&Giant); 328595fab37eSRobert Watson 328695fab37eSRobert Watson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 328795fab37eSRobert Watson if (error) 328895fab37eSRobert Watson goto out; 328995fab37eSRobert Watson 329095fab37eSRobert Watson error = mac_internalize(&intlabel, &extmac); 329195fab37eSRobert Watson if (error) 329295fab37eSRobert Watson goto out; 329395fab37eSRobert Watson 329495fab37eSRobert Watson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 329595fab37eSRobert Watson SCARG(uap, path_p), td); 329695fab37eSRobert Watson error = namei(&nd); 329795fab37eSRobert Watson if (error) 329895fab37eSRobert Watson goto out2; 329995fab37eSRobert Watson error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH); 330095fab37eSRobert Watson if (error) 330195fab37eSRobert Watson goto out2; 330295fab37eSRobert Watson 330395fab37eSRobert Watson error = vn_setlabel(nd.ni_vp, &intlabel, td->td_ucred); 330495fab37eSRobert Watson 330595fab37eSRobert Watson vn_finished_write(mp); 330695fab37eSRobert Watson out2: 330795fab37eSRobert Watson mac_destroy_temp(&intlabel); 330895fab37eSRobert Watson NDFREE(&nd, 0); 330995fab37eSRobert Watson out: 331095fab37eSRobert Watson mtx_unlock(&Giant); 331195fab37eSRobert Watson return (error); 331295fab37eSRobert Watson } 331395fab37eSRobert Watson 331427f2eac7SRobert Watson int 331527f2eac7SRobert Watson mac_syscall(struct thread *td, struct mac_syscall_args *uap) 331627f2eac7SRobert Watson { 331727f2eac7SRobert Watson struct mac_policy_conf *mpc; 331827f2eac7SRobert Watson char target[MAC_MAX_POLICY_NAME]; 331927f2eac7SRobert Watson int error; 332027f2eac7SRobert Watson 332127f2eac7SRobert Watson error = copyinstr(SCARG(uap, policy), target, sizeof(target), NULL); 332227f2eac7SRobert Watson if (error) 332327f2eac7SRobert Watson return (error); 332427f2eac7SRobert Watson 332527f2eac7SRobert Watson error = ENOSYS; 332627f2eac7SRobert Watson MAC_POLICY_LIST_BUSY(); 332727f2eac7SRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { 332827f2eac7SRobert Watson if (strcmp(mpc->mpc_name, target) == 0 && 332927f2eac7SRobert Watson mpc->mpc_ops->mpo_syscall != NULL) { 333027f2eac7SRobert Watson error = mpc->mpc_ops->mpo_syscall(td, 333127f2eac7SRobert Watson SCARG(uap, call), SCARG(uap, arg)); 333227f2eac7SRobert Watson goto out; 333327f2eac7SRobert Watson } 333427f2eac7SRobert Watson } 333527f2eac7SRobert Watson 333627f2eac7SRobert Watson out: 333727f2eac7SRobert Watson MAC_POLICY_LIST_UNBUSY(); 333827f2eac7SRobert Watson return (error); 333927f2eac7SRobert Watson } 334027f2eac7SRobert Watson 334195fab37eSRobert Watson SYSINIT(mac, SI_SUB_MAC, SI_ORDER_FIRST, mac_init, NULL); 334295fab37eSRobert Watson SYSINIT(mac_late, SI_SUB_MAC_LATE, SI_ORDER_FIRST, mac_late_init, NULL); 334395fab37eSRobert Watson 334495fab37eSRobert Watson #else /* !MAC */ 33457bc82500SRobert Watson 33467bc82500SRobert Watson int 33477bc82500SRobert Watson __mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 33487bc82500SRobert Watson { 33497bc82500SRobert Watson 33507bc82500SRobert Watson return (ENOSYS); 33517bc82500SRobert Watson } 33527bc82500SRobert Watson 33537bc82500SRobert Watson int 33547bc82500SRobert Watson __mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 33557bc82500SRobert Watson { 33567bc82500SRobert Watson 33577bc82500SRobert Watson return (ENOSYS); 33587bc82500SRobert Watson } 33597bc82500SRobert Watson 33607bc82500SRobert Watson int 33617bc82500SRobert Watson __mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 33627bc82500SRobert Watson { 33637bc82500SRobert Watson 33647bc82500SRobert Watson return (ENOSYS); 33657bc82500SRobert Watson } 33667bc82500SRobert Watson 33677bc82500SRobert Watson int 33687bc82500SRobert Watson __mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 33697bc82500SRobert Watson { 33707bc82500SRobert Watson 33717bc82500SRobert Watson return (ENOSYS); 33727bc82500SRobert Watson } 33737bc82500SRobert Watson 33747bc82500SRobert Watson int 33757bc82500SRobert Watson __mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 33767bc82500SRobert Watson { 33777bc82500SRobert Watson 33787bc82500SRobert Watson return (ENOSYS); 33797bc82500SRobert Watson } 33807bc82500SRobert Watson 33817bc82500SRobert Watson int 33827bc82500SRobert Watson __mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 33837bc82500SRobert Watson { 33847bc82500SRobert Watson 33857bc82500SRobert Watson return (ENOSYS); 33867bc82500SRobert Watson } 338795fab37eSRobert Watson 338827f2eac7SRobert Watson int 338927f2eac7SRobert Watson mac_syscall(struct thread *td, struct mac_syscall_args *uap) 339027f2eac7SRobert Watson { 339127f2eac7SRobert Watson 339227f2eac7SRobert Watson return (ENOSYS); 339327f2eac7SRobert Watson } 339427f2eac7SRobert Watson 339595fab37eSRobert Watson #endif /* !MAC */ 3396