mac_cred.c revision 104518
1100894Srwatson/*- 2100894Srwatson * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson 3100894Srwatson * Copyright (c) 2001 Ilmar S. Habibulin 4100894Srwatson * Copyright (c) 2001, 2002 Networks Associates Technology, Inc. 5100894Srwatson * All rights reserved. 6100894Srwatson * 7100894Srwatson * This software was developed by Robert Watson and Ilmar Habibulin for the 8100894Srwatson * TrustedBSD Project. 9100894Srwatson * 10100894Srwatson * This software was developed for the FreeBSD Project in part by NAI Labs, 11100894Srwatson * the Security Research Division of Network Associates, Inc. under 12100894Srwatson * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA 13100894Srwatson * CHATS research program. 14100894Srwatson * 15100894Srwatson * Redistribution and use in source and binary forms, with or without 16100894Srwatson * modification, are permitted provided that the following conditions 17100894Srwatson * are met: 18100894Srwatson * 1. Redistributions of source code must retain the above copyright 19100894Srwatson * notice, this list of conditions and the following disclaimer. 20100894Srwatson * 2. Redistributions in binary form must reproduce the above copyright 21100894Srwatson * notice, this list of conditions and the following disclaimer in the 22100894Srwatson * documentation and/or other materials provided with the distribution. 23100894Srwatson * 3. The names of the authors may not be used to endorse or promote 24100894Srwatson * products derived from this software without specific prior written 25100894Srwatson * permission. 26100894Srwatson * 27100894Srwatson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 28100894Srwatson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29100894Srwatson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30100894Srwatson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 31100894Srwatson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32100894Srwatson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33100894Srwatson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34100894Srwatson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35100894Srwatson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36100894Srwatson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37100894Srwatson * SUCH DAMAGE. 38100894Srwatson * 39100894Srwatson * $FreeBSD: head/sys/security/mac/mac_process.c 104518 2002-10-05 16:33:46Z rwatson $ 40100894Srwatson */ 41100894Srwatson/* 42100894Srwatson * Developed by the TrustedBSD Project. 43100894Srwatson * 44100894Srwatson * Framework for extensible kernel access control. Kernel and userland 45100894Srwatson * interface to the framework, policy registration and composition. 46100894Srwatson */ 47100894Srwatson 48100894Srwatson#include "opt_mac.h" 49104300Sphk#include "opt_devfs.h" 50101173Srwatson 51100894Srwatson#include <sys/param.h> 52100979Srwatson#include <sys/extattr.h> 53100979Srwatson#include <sys/kernel.h> 54100979Srwatson#include <sys/lock.h> 55102949Sbde#include <sys/malloc.h> 56100979Srwatson#include <sys/mutex.h> 57100979Srwatson#include <sys/mac.h> 58101712Srwatson#include <sys/module.h> 59100979Srwatson#include <sys/proc.h> 60100979Srwatson#include <sys/systm.h> 61100894Srwatson#include <sys/sysproto.h> 62100894Srwatson#include <sys/sysent.h> 63100979Srwatson#include <sys/vnode.h> 64100979Srwatson#include <sys/mount.h> 65100979Srwatson#include <sys/file.h> 66100979Srwatson#include <sys/namei.h> 67100979Srwatson#include <sys/socket.h> 68100979Srwatson#include <sys/pipe.h> 69100979Srwatson#include <sys/socketvar.h> 70100979Srwatson#include <sys/sysctl.h> 71100894Srwatson 72100979Srwatson#include <vm/vm.h> 73100979Srwatson#include <vm/pmap.h> 74100979Srwatson#include <vm/vm_map.h> 75100979Srwatson#include <vm/vm_object.h> 76100979Srwatson 77100979Srwatson#include <sys/mac_policy.h> 78100979Srwatson 79100979Srwatson#include <fs/devfs/devfs.h> 80100979Srwatson 81100979Srwatson#include <net/bpfdesc.h> 82100979Srwatson#include <net/if.h> 83100979Srwatson#include <net/if_var.h> 84100979Srwatson 85100979Srwatson#include <netinet/in.h> 86100979Srwatson#include <netinet/ip_var.h> 87100979Srwatson 88100979Srwatson#ifdef MAC 89100979Srwatson 90101712Srwatson/* 91101712Srwatson * Declare that the kernel provides MAC support, version 1. This permits 92101712Srwatson * modules to refuse to be loaded if the necessary support isn't present, 93101712Srwatson * even if it's pre-boot. 94101712Srwatson */ 95101712SrwatsonMODULE_VERSION(kernel_mac_support, 1); 96101712Srwatson 97100979SrwatsonSYSCTL_DECL(_security); 98100979Srwatson 99100979SrwatsonSYSCTL_NODE(_security, OID_AUTO, mac, CTLFLAG_RW, 0, 100100979Srwatson "TrustedBSD MAC policy controls"); 101104517Srwatson 102100979Srwatson#ifndef MAC_MAX_POLICIES 103100979Srwatson#define MAC_MAX_POLICIES 8 104100979Srwatson#endif 105100979Srwatson#if MAC_MAX_POLICIES > 32 106100979Srwatson#error "MAC_MAX_POLICIES too large" 107100979Srwatson#endif 108100979Srwatsonstatic unsigned int mac_max_policies = MAC_MAX_POLICIES; 109100979Srwatsonstatic unsigned int mac_policy_offsets_free = (1 << MAC_MAX_POLICIES) - 1; 110100979SrwatsonSYSCTL_UINT(_security_mac, OID_AUTO, max_policies, CTLFLAG_RD, 111100979Srwatson &mac_max_policies, 0, ""); 112100979Srwatson 113100979Srwatsonstatic int mac_late = 0; 114100979Srwatson 115100979Srwatsonstatic int mac_enforce_fs = 1; 116100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_fs, CTLFLAG_RW, 117100979Srwatson &mac_enforce_fs, 0, "Enforce MAC policy on file system objects"); 118100979SrwatsonTUNABLE_INT("security.mac.enforce_fs", &mac_enforce_fs); 119100979Srwatson 120100979Srwatsonstatic int mac_enforce_network = 1; 121100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_network, CTLFLAG_RW, 122100979Srwatson &mac_enforce_network, 0, "Enforce MAC policy on network packets"); 123100979SrwatsonTUNABLE_INT("security.mac.enforce_network", &mac_enforce_network); 124100979Srwatson 125103513Srwatsonstatic int mac_enforce_pipe = 1; 126103513SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_pipe, CTLFLAG_RW, 127103513Srwatson &mac_enforce_pipe, 0, "Enforce MAC policy on pipe operations"); 128104236SrwatsonTUNABLE_INT("security.mac.enforce_pipe", &mac_enforce_pipe); 129103513Srwatson 130100979Srwatsonstatic int mac_enforce_process = 1; 131100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_process, CTLFLAG_RW, 132100979Srwatson &mac_enforce_process, 0, "Enforce MAC policy on inter-process operations"); 133100979SrwatsonTUNABLE_INT("security.mac.enforce_process", &mac_enforce_process); 134100979Srwatson 135100979Srwatsonstatic int mac_enforce_socket = 1; 136100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_socket, CTLFLAG_RW, 137100979Srwatson &mac_enforce_socket, 0, "Enforce MAC policy on socket operations"); 138100979SrwatsonTUNABLE_INT("security.mac.enforce_socket", &mac_enforce_socket); 139100979Srwatson 140103514Srwatsonstatic int mac_enforce_vm = 1; 141103514SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_vm, CTLFLAG_RW, 142103514Srwatson &mac_enforce_vm, 0, "Enforce MAC policy on vm operations"); 143104236SrwatsonTUNABLE_INT("security.mac.enforce_vm", &mac_enforce_vm); 144103514Srwatson 145100979Srwatsonstatic int mac_label_size = sizeof(struct mac); 146100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, label_size, CTLFLAG_RD, 147100979Srwatson &mac_label_size, 0, "Pre-compiled MAC label size"); 148100979Srwatson 149100979Srwatsonstatic int mac_cache_fslabel_in_vnode = 1; 150100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, cache_fslabel_in_vnode, CTLFLAG_RW, 151100979Srwatson &mac_cache_fslabel_in_vnode, 0, "Cache mount fslabel in vnode"); 152100979SrwatsonTUNABLE_INT("security.mac.cache_fslabel_in_vnode", 153100979Srwatson &mac_cache_fslabel_in_vnode); 154100979Srwatson 155100979Srwatsonstatic int mac_vnode_label_cache_hits = 0; 156100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD, 157100979Srwatson &mac_vnode_label_cache_hits, 0, "Cache hits on vnode labels"); 158100979Srwatsonstatic int mac_vnode_label_cache_misses = 0; 159100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD, 160100979Srwatson &mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels"); 161103136Srwatson 162103136Srwatsonstatic int mac_mmap_revocation = 1; 163103136SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation, CTLFLAG_RW, 164103136Srwatson &mac_mmap_revocation, 0, "Revoke mmap access to files on subject " 165103136Srwatson "relabel"); 166101892Srwatsonstatic int mac_mmap_revocation_via_cow = 0; 167100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW, 168100979Srwatson &mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via " 169100979Srwatson "copy-on-write semantics, or by removing all write access"); 170100979Srwatson 171101988Srwatson#ifdef MAC_DEBUG 172104268SrwatsonSYSCTL_NODE(_security_mac, OID_AUTO, debug, CTLFLAG_RW, 0, 173104268Srwatson "TrustedBSD MAC debug info"); 174104268Srwatson 175104268Srwatsonstatic int mac_debug_label_fallback = 0; 176104268SrwatsonSYSCTL_INT(_security_mac_debug, OID_AUTO, label_fallback, CTLFLAG_RW, 177104268Srwatson &mac_debug_label_fallback, 0, "Filesystems should fall back to fs label" 178104268Srwatson "when label is corrupted."); 179104268SrwatsonTUNABLE_INT("security.mac.debug_label_fallback", 180104268Srwatson &mac_debug_label_fallback); 181104268Srwatson 182104517SrwatsonSYSCTL_NODE(_security_mac_debug, OID_AUTO, counters, CTLFLAG_RW, 0, 183104517Srwatson "TrustedBSD MAC object counters"); 184104517Srwatson 185100979Srwatsonstatic unsigned int nmacmbufs, nmaccreds, nmacifnets, nmacbpfdescs, 186100979Srwatson nmacsockets, nmacmounts, nmactemp, nmacvnodes, nmacdevfsdirents, 187100979Srwatson nmacipqs, nmacpipes; 188104517Srwatson 189104517SrwatsonSYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, mbufs, CTLFLAG_RD, 190100979Srwatson &nmacmbufs, 0, "number of mbufs in use"); 191104517SrwatsonSYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, creds, CTLFLAG_RD, 192100979Srwatson &nmaccreds, 0, "number of ucreds in use"); 193104517SrwatsonSYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, ifnets, CTLFLAG_RD, 194100979Srwatson &nmacifnets, 0, "number of ifnets in use"); 195104517SrwatsonSYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, ipqs, CTLFLAG_RD, 196100979Srwatson &nmacipqs, 0, "number of ipqs in use"); 197104517SrwatsonSYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, bpfdescs, CTLFLAG_RD, 198100979Srwatson &nmacbpfdescs, 0, "number of bpfdescs in use"); 199104517SrwatsonSYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, sockets, CTLFLAG_RD, 200100979Srwatson &nmacsockets, 0, "number of sockets in use"); 201104517SrwatsonSYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, pipes, CTLFLAG_RD, 202100979Srwatson &nmacpipes, 0, "number of pipes in use"); 203104517SrwatsonSYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, mounts, CTLFLAG_RD, 204100979Srwatson &nmacmounts, 0, "number of mounts in use"); 205104517SrwatsonSYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, temp, CTLFLAG_RD, 206100979Srwatson &nmactemp, 0, "number of temporary labels in use"); 207104517SrwatsonSYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, vnodes, CTLFLAG_RD, 208100979Srwatson &nmacvnodes, 0, "number of vnodes in use"); 209104517SrwatsonSYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, devfsdirents, CTLFLAG_RD, 210100979Srwatson &nmacdevfsdirents, 0, "number of devfs dirents inuse"); 211101988Srwatson#endif 212100979Srwatson 213100979Srwatsonstatic int error_select(int error1, int error2); 214100979Srwatsonstatic int mac_externalize(struct label *label, struct mac *mac); 215100979Srwatsonstatic int mac_policy_register(struct mac_policy_conf *mpc); 216100979Srwatsonstatic int mac_policy_unregister(struct mac_policy_conf *mpc); 217100979Srwatson 218100979Srwatsonstatic int mac_stdcreatevnode_ea(struct vnode *vp); 219100979Srwatsonstatic void mac_cred_mmapped_drop_perms(struct thread *td, 220100979Srwatson struct ucred *cred); 221100979Srwatsonstatic void mac_cred_mmapped_drop_perms_recurse(struct thread *td, 222100979Srwatson struct ucred *cred, struct vm_map *map); 223100979Srwatson 224100979SrwatsonMALLOC_DEFINE(M_MACOPVEC, "macopvec", "MAC policy operation vector"); 225100979SrwatsonMALLOC_DEFINE(M_MACPIPELABEL, "macpipelabel", "MAC labels for pipes"); 226100979Srwatson 227100979Srwatson/* 228100979Srwatson * mac_policy_list_lock protects the consistency of 'mac_policy_list', 229100979Srwatson * the linked list of attached policy modules. Read-only consumers of 230100979Srwatson * the list must acquire a shared lock for the duration of their use; 231100979Srwatson * writers must acquire an exclusive lock. Note that for compound 232100979Srwatson * operations, locks should be held for the entire compound operation, 233100979Srwatson * and that this is not yet done for relabel requests. 234100979Srwatson */ 235100979Srwatsonstatic struct mtx mac_policy_list_lock; 236100979Srwatsonstatic LIST_HEAD(, mac_policy_conf) mac_policy_list; 237100979Srwatsonstatic int mac_policy_list_busy; 238100979Srwatson#define MAC_POLICY_LIST_LOCKINIT() mtx_init(&mac_policy_list_lock, \ 239100979Srwatson "mac_policy_list_lock", NULL, MTX_DEF); 240100979Srwatson#define MAC_POLICY_LIST_LOCK() mtx_lock(&mac_policy_list_lock); 241100979Srwatson#define MAC_POLICY_LIST_UNLOCK() mtx_unlock(&mac_policy_list_lock); 242100979Srwatson 243100979Srwatson#define MAC_POLICY_LIST_BUSY() do { \ 244100979Srwatson MAC_POLICY_LIST_LOCK(); \ 245100979Srwatson mac_policy_list_busy++; \ 246100979Srwatson MAC_POLICY_LIST_UNLOCK(); \ 247100979Srwatson} while (0) 248100979Srwatson 249100979Srwatson#define MAC_POLICY_LIST_UNBUSY() do { \ 250100979Srwatson MAC_POLICY_LIST_LOCK(); \ 251100979Srwatson mac_policy_list_busy--; \ 252100979Srwatson if (mac_policy_list_busy < 0) \ 253100979Srwatson panic("Extra mac_policy_list_busy--"); \ 254100979Srwatson MAC_POLICY_LIST_UNLOCK(); \ 255100979Srwatson} while (0) 256100979Srwatson 257100979Srwatson/* 258100979Srwatson * MAC_CHECK performs the designated check by walking the policy 259100979Srwatson * module list and checking with each as to how it feels about the 260100979Srwatson * request. Note that it returns its value via 'error' in the scope 261100979Srwatson * of the caller. 262100979Srwatson */ 263100979Srwatson#define MAC_CHECK(check, args...) do { \ 264100979Srwatson struct mac_policy_conf *mpc; \ 265100979Srwatson \ 266100979Srwatson error = 0; \ 267100979Srwatson MAC_POLICY_LIST_BUSY(); \ 268100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 269100979Srwatson if (mpc->mpc_ops->mpo_ ## check != NULL) \ 270100979Srwatson error = error_select( \ 271100979Srwatson mpc->mpc_ops->mpo_ ## check (args), \ 272100979Srwatson error); \ 273100979Srwatson } \ 274100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 275100979Srwatson} while (0) 276100979Srwatson 277100979Srwatson/* 278100979Srwatson * MAC_BOOLEAN performs the designated boolean composition by walking 279100979Srwatson * the module list, invoking each instance of the operation, and 280100979Srwatson * combining the results using the passed C operator. Note that it 281100979Srwatson * returns its value via 'result' in the scope of the caller, which 282100979Srwatson * should be initialized by the caller in a meaningful way to get 283100979Srwatson * a meaningful result. 284100979Srwatson */ 285100979Srwatson#define MAC_BOOLEAN(operation, composition, args...) do { \ 286100979Srwatson struct mac_policy_conf *mpc; \ 287100979Srwatson \ 288100979Srwatson MAC_POLICY_LIST_BUSY(); \ 289100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 290100979Srwatson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 291100979Srwatson result = result composition \ 292100979Srwatson mpc->mpc_ops->mpo_ ## operation (args); \ 293100979Srwatson } \ 294100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 295100979Srwatson} while (0) 296100979Srwatson 297100979Srwatson/* 298100979Srwatson * MAC_PERFORM performs the designated operation by walking the policy 299100979Srwatson * module list and invoking that operation for each policy. 300100979Srwatson */ 301100979Srwatson#define MAC_PERFORM(operation, args...) do { \ 302100979Srwatson struct mac_policy_conf *mpc; \ 303100979Srwatson \ 304100979Srwatson MAC_POLICY_LIST_BUSY(); \ 305100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 306100979Srwatson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 307100979Srwatson mpc->mpc_ops->mpo_ ## operation (args); \ 308100979Srwatson } \ 309100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 310100979Srwatson} while (0) 311100979Srwatson 312100979Srwatson/* 313100979Srwatson * Initialize the MAC subsystem, including appropriate SMP locks. 314100979Srwatson */ 315100979Srwatsonstatic void 316100979Srwatsonmac_init(void) 317100979Srwatson{ 318100979Srwatson 319100979Srwatson LIST_INIT(&mac_policy_list); 320100979Srwatson MAC_POLICY_LIST_LOCKINIT(); 321100979Srwatson} 322100979Srwatson 323100979Srwatson/* 324100979Srwatson * For the purposes of modules that want to know if they were loaded 325100979Srwatson * "early", set the mac_late flag once we've processed modules either 326100979Srwatson * linked into the kernel, or loaded before the kernel startup. 327100979Srwatson */ 328100979Srwatsonstatic void 329100979Srwatsonmac_late_init(void) 330100979Srwatson{ 331100979Srwatson 332100979Srwatson mac_late = 1; 333100979Srwatson} 334100979Srwatson 335100979Srwatson/* 336100979Srwatson * Allow MAC policy modules to register during boot, etc. 337100979Srwatson */ 338100894Srwatsonint 339100979Srwatsonmac_policy_modevent(module_t mod, int type, void *data) 340100979Srwatson{ 341100979Srwatson struct mac_policy_conf *mpc; 342100979Srwatson int error; 343100979Srwatson 344100979Srwatson error = 0; 345100979Srwatson mpc = (struct mac_policy_conf *) data; 346100979Srwatson 347100979Srwatson switch (type) { 348100979Srwatson case MOD_LOAD: 349100979Srwatson if (mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_NOTLATE && 350100979Srwatson mac_late) { 351100979Srwatson printf("mac_policy_modevent: can't load %s policy " 352100979Srwatson "after booting\n", mpc->mpc_name); 353100979Srwatson error = EBUSY; 354100979Srwatson break; 355100979Srwatson } 356100979Srwatson error = mac_policy_register(mpc); 357100979Srwatson break; 358100979Srwatson case MOD_UNLOAD: 359100979Srwatson /* Don't unregister the module if it was never registered. */ 360100979Srwatson if ((mpc->mpc_runtime_flags & MPC_RUNTIME_FLAG_REGISTERED) 361100979Srwatson != 0) 362100979Srwatson error = mac_policy_unregister(mpc); 363100979Srwatson else 364100979Srwatson error = 0; 365100979Srwatson break; 366100979Srwatson default: 367100979Srwatson break; 368100979Srwatson } 369100979Srwatson 370100979Srwatson return (error); 371100979Srwatson} 372100979Srwatson 373100979Srwatsonstatic int 374100979Srwatsonmac_policy_register(struct mac_policy_conf *mpc) 375100979Srwatson{ 376100979Srwatson struct mac_policy_conf *tmpc; 377100979Srwatson struct mac_policy_op_entry *mpe; 378100979Srwatson int slot; 379100979Srwatson 380103570Srwatson MALLOC(mpc->mpc_ops, struct mac_policy_ops *, sizeof(*mpc->mpc_ops), 381103570Srwatson M_MACOPVEC, M_WAITOK | M_ZERO); 382100979Srwatson for (mpe = mpc->mpc_entries; mpe->mpe_constant != MAC_OP_LAST; mpe++) { 383100979Srwatson switch (mpe->mpe_constant) { 384100979Srwatson case MAC_OP_LAST: 385100979Srwatson /* 386100979Srwatson * Doesn't actually happen, but this allows checking 387100979Srwatson * that all enumerated values are handled. 388100979Srwatson */ 389100979Srwatson break; 390100979Srwatson case MAC_DESTROY: 391100979Srwatson mpc->mpc_ops->mpo_destroy = 392100979Srwatson mpe->mpe_function; 393100979Srwatson break; 394100979Srwatson case MAC_INIT: 395100979Srwatson mpc->mpc_ops->mpo_init = 396100979Srwatson mpe->mpe_function; 397100979Srwatson break; 398102123Srwatson case MAC_SYSCALL: 399102123Srwatson mpc->mpc_ops->mpo_syscall = 400102123Srwatson mpe->mpe_function; 401102123Srwatson break; 402104514Srwatson case MAC_INIT_BPFDESC_LABEL: 403104514Srwatson mpc->mpc_ops->mpo_init_bpfdesc_label = 404100979Srwatson mpe->mpe_function; 405100979Srwatson break; 406104514Srwatson case MAC_INIT_CRED_LABEL: 407104514Srwatson mpc->mpc_ops->mpo_init_cred_label = 408100979Srwatson mpe->mpe_function; 409100979Srwatson break; 410104514Srwatson case MAC_INIT_DEVFSDIRENT_LABEL: 411104514Srwatson mpc->mpc_ops->mpo_init_devfsdirent_label = 412100979Srwatson mpe->mpe_function; 413100979Srwatson break; 414104514Srwatson case MAC_INIT_IFNET_LABEL: 415104514Srwatson mpc->mpc_ops->mpo_init_ifnet_label = 416100979Srwatson mpe->mpe_function; 417100979Srwatson break; 418104514Srwatson case MAC_INIT_IPQ_LABEL: 419104514Srwatson mpc->mpc_ops->mpo_init_ipq_label = 420100979Srwatson mpe->mpe_function; 421100979Srwatson break; 422104514Srwatson case MAC_INIT_MBUF_LABEL: 423104514Srwatson mpc->mpc_ops->mpo_init_mbuf_label = 424100979Srwatson mpe->mpe_function; 425100979Srwatson break; 426104514Srwatson case MAC_INIT_MOUNT_LABEL: 427104514Srwatson mpc->mpc_ops->mpo_init_mount_label = 428100979Srwatson mpe->mpe_function; 429100979Srwatson break; 430104514Srwatson case MAC_INIT_MOUNT_FS_LABEL: 431104514Srwatson mpc->mpc_ops->mpo_init_mount_fs_label = 432100979Srwatson mpe->mpe_function; 433100979Srwatson break; 434104514Srwatson case MAC_INIT_PIPE_LABEL: 435104514Srwatson mpc->mpc_ops->mpo_init_pipe_label = 436100979Srwatson mpe->mpe_function; 437100979Srwatson break; 438104514Srwatson case MAC_INIT_SOCKET_LABEL: 439104514Srwatson mpc->mpc_ops->mpo_init_socket_label = 440100979Srwatson mpe->mpe_function; 441100979Srwatson break; 442104514Srwatson case MAC_INIT_SOCKET_PEER_LABEL: 443104514Srwatson mpc->mpc_ops->mpo_init_socket_peer_label = 444100979Srwatson mpe->mpe_function; 445100979Srwatson break; 446104514Srwatson case MAC_INIT_TEMP_LABEL: 447104514Srwatson mpc->mpc_ops->mpo_init_temp_label = 448100979Srwatson mpe->mpe_function; 449100979Srwatson break; 450104514Srwatson case MAC_INIT_VNODE_LABEL: 451104514Srwatson mpc->mpc_ops->mpo_init_vnode_label = 452100979Srwatson mpe->mpe_function; 453100979Srwatson break; 454104514Srwatson case MAC_DESTROY_BPFDESC_LABEL: 455104514Srwatson mpc->mpc_ops->mpo_destroy_bpfdesc_label = 456100979Srwatson mpe->mpe_function; 457100979Srwatson break; 458104514Srwatson case MAC_DESTROY_CRED_LABEL: 459104514Srwatson mpc->mpc_ops->mpo_destroy_cred_label = 460100979Srwatson mpe->mpe_function; 461100979Srwatson break; 462104514Srwatson case MAC_DESTROY_DEVFSDIRENT_LABEL: 463104514Srwatson mpc->mpc_ops->mpo_destroy_devfsdirent_label = 464100979Srwatson mpe->mpe_function; 465100979Srwatson break; 466104514Srwatson case MAC_DESTROY_IFNET_LABEL: 467104514Srwatson mpc->mpc_ops->mpo_destroy_ifnet_label = 468100979Srwatson mpe->mpe_function; 469100979Srwatson break; 470104514Srwatson case MAC_DESTROY_IPQ_LABEL: 471104514Srwatson mpc->mpc_ops->mpo_destroy_ipq_label = 472100979Srwatson mpe->mpe_function; 473100979Srwatson break; 474104514Srwatson case MAC_DESTROY_MBUF_LABEL: 475104514Srwatson mpc->mpc_ops->mpo_destroy_mbuf_label = 476100979Srwatson mpe->mpe_function; 477100979Srwatson break; 478104514Srwatson case MAC_DESTROY_MOUNT_LABEL: 479104514Srwatson mpc->mpc_ops->mpo_destroy_mount_label = 480100979Srwatson mpe->mpe_function; 481100979Srwatson break; 482104514Srwatson case MAC_DESTROY_MOUNT_FS_LABEL: 483104514Srwatson mpc->mpc_ops->mpo_destroy_mount_fs_label = 484100979Srwatson mpe->mpe_function; 485100979Srwatson break; 486104514Srwatson case MAC_DESTROY_PIPE_LABEL: 487104514Srwatson mpc->mpc_ops->mpo_destroy_pipe_label = 488100979Srwatson mpe->mpe_function; 489100979Srwatson break; 490104514Srwatson case MAC_DESTROY_SOCKET_LABEL: 491104514Srwatson mpc->mpc_ops->mpo_destroy_socket_label = 492104514Srwatson mpe->mpe_function; 493104514Srwatson break; 494104514Srwatson case MAC_DESTROY_SOCKET_PEER_LABEL: 495104514Srwatson mpc->mpc_ops->mpo_destroy_socket_peer_label = 496104514Srwatson mpe->mpe_function; 497104514Srwatson break; 498104514Srwatson case MAC_DESTROY_TEMP_LABEL: 499104514Srwatson mpc->mpc_ops->mpo_destroy_temp_label = 500104514Srwatson mpe->mpe_function; 501104514Srwatson break; 502104514Srwatson case MAC_DESTROY_VNODE_LABEL: 503104514Srwatson mpc->mpc_ops->mpo_destroy_vnode_label = 504104514Srwatson mpe->mpe_function; 505104514Srwatson break; 506100979Srwatson case MAC_EXTERNALIZE: 507100979Srwatson mpc->mpc_ops->mpo_externalize = 508100979Srwatson mpe->mpe_function; 509100979Srwatson break; 510100979Srwatson case MAC_INTERNALIZE: 511100979Srwatson mpc->mpc_ops->mpo_internalize = 512100979Srwatson mpe->mpe_function; 513100979Srwatson break; 514100979Srwatson case MAC_CREATE_DEVFS_DEVICE: 515100979Srwatson mpc->mpc_ops->mpo_create_devfs_device = 516100979Srwatson mpe->mpe_function; 517100979Srwatson break; 518100979Srwatson case MAC_CREATE_DEVFS_DIRECTORY: 519100979Srwatson mpc->mpc_ops->mpo_create_devfs_directory = 520100979Srwatson mpe->mpe_function; 521100979Srwatson break; 522100979Srwatson case MAC_CREATE_DEVFS_VNODE: 523100979Srwatson mpc->mpc_ops->mpo_create_devfs_vnode = 524100979Srwatson mpe->mpe_function; 525100979Srwatson break; 526100979Srwatson case MAC_STDCREATEVNODE_EA: 527100979Srwatson mpc->mpc_ops->mpo_stdcreatevnode_ea = 528100979Srwatson mpe->mpe_function; 529100979Srwatson break; 530100979Srwatson case MAC_CREATE_VNODE: 531100979Srwatson mpc->mpc_ops->mpo_create_vnode = 532100979Srwatson mpe->mpe_function; 533100979Srwatson break; 534100979Srwatson case MAC_CREATE_MOUNT: 535100979Srwatson mpc->mpc_ops->mpo_create_mount = 536100979Srwatson mpe->mpe_function; 537100979Srwatson break; 538100979Srwatson case MAC_CREATE_ROOT_MOUNT: 539100979Srwatson mpc->mpc_ops->mpo_create_root_mount = 540100979Srwatson mpe->mpe_function; 541100979Srwatson break; 542100979Srwatson case MAC_RELABEL_VNODE: 543100979Srwatson mpc->mpc_ops->mpo_relabel_vnode = 544100979Srwatson mpe->mpe_function; 545100979Srwatson break; 546100979Srwatson case MAC_UPDATE_DEVFSDIRENT: 547100979Srwatson mpc->mpc_ops->mpo_update_devfsdirent = 548100979Srwatson mpe->mpe_function; 549100979Srwatson break; 550100979Srwatson case MAC_UPDATE_PROCFSVNODE: 551100979Srwatson mpc->mpc_ops->mpo_update_procfsvnode = 552100979Srwatson mpe->mpe_function; 553100979Srwatson break; 554100979Srwatson case MAC_UPDATE_VNODE_FROM_EXTATTR: 555100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_extattr = 556100979Srwatson mpe->mpe_function; 557100979Srwatson break; 558100979Srwatson case MAC_UPDATE_VNODE_FROM_EXTERNALIZED: 559100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_externalized = 560100979Srwatson mpe->mpe_function; 561100979Srwatson break; 562100979Srwatson case MAC_UPDATE_VNODE_FROM_MOUNT: 563100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_mount = 564100979Srwatson mpe->mpe_function; 565100979Srwatson break; 566100979Srwatson case MAC_CREATE_MBUF_FROM_SOCKET: 567100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_socket = 568100979Srwatson mpe->mpe_function; 569100979Srwatson break; 570100979Srwatson case MAC_CREATE_PIPE: 571100979Srwatson mpc->mpc_ops->mpo_create_pipe = 572100979Srwatson mpe->mpe_function; 573100979Srwatson break; 574100979Srwatson case MAC_CREATE_SOCKET: 575100979Srwatson mpc->mpc_ops->mpo_create_socket = 576100979Srwatson mpe->mpe_function; 577100979Srwatson break; 578100979Srwatson case MAC_CREATE_SOCKET_FROM_SOCKET: 579100979Srwatson mpc->mpc_ops->mpo_create_socket_from_socket = 580100979Srwatson mpe->mpe_function; 581100979Srwatson break; 582100979Srwatson case MAC_RELABEL_PIPE: 583100979Srwatson mpc->mpc_ops->mpo_relabel_pipe = 584100979Srwatson mpe->mpe_function; 585100979Srwatson break; 586100979Srwatson case MAC_RELABEL_SOCKET: 587100979Srwatson mpc->mpc_ops->mpo_relabel_socket = 588100979Srwatson mpe->mpe_function; 589100979Srwatson break; 590100979Srwatson case MAC_SET_SOCKET_PEER_FROM_MBUF: 591100979Srwatson mpc->mpc_ops->mpo_set_socket_peer_from_mbuf = 592100979Srwatson mpe->mpe_function; 593100979Srwatson break; 594100979Srwatson case MAC_SET_SOCKET_PEER_FROM_SOCKET: 595100979Srwatson mpc->mpc_ops->mpo_set_socket_peer_from_socket = 596100979Srwatson mpe->mpe_function; 597100979Srwatson break; 598100979Srwatson case MAC_CREATE_BPFDESC: 599100979Srwatson mpc->mpc_ops->mpo_create_bpfdesc = 600100979Srwatson mpe->mpe_function; 601100979Srwatson break; 602100979Srwatson case MAC_CREATE_DATAGRAM_FROM_IPQ: 603100979Srwatson mpc->mpc_ops->mpo_create_datagram_from_ipq = 604100979Srwatson mpe->mpe_function; 605100979Srwatson break; 606100979Srwatson case MAC_CREATE_FRAGMENT: 607100979Srwatson mpc->mpc_ops->mpo_create_fragment = 608100979Srwatson mpe->mpe_function; 609100979Srwatson break; 610100979Srwatson case MAC_CREATE_IFNET: 611100979Srwatson mpc->mpc_ops->mpo_create_ifnet = 612100979Srwatson mpe->mpe_function; 613100979Srwatson break; 614100979Srwatson case MAC_CREATE_IPQ: 615100979Srwatson mpc->mpc_ops->mpo_create_ipq = 616100979Srwatson mpe->mpe_function; 617100979Srwatson break; 618100979Srwatson case MAC_CREATE_MBUF_FROM_MBUF: 619100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_mbuf = 620100979Srwatson mpe->mpe_function; 621100979Srwatson break; 622100979Srwatson case MAC_CREATE_MBUF_LINKLAYER: 623100979Srwatson mpc->mpc_ops->mpo_create_mbuf_linklayer = 624100979Srwatson mpe->mpe_function; 625100979Srwatson break; 626100979Srwatson case MAC_CREATE_MBUF_FROM_BPFDESC: 627100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_bpfdesc = 628100979Srwatson mpe->mpe_function; 629100979Srwatson break; 630100979Srwatson case MAC_CREATE_MBUF_FROM_IFNET: 631100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_ifnet = 632100979Srwatson mpe->mpe_function; 633100979Srwatson break; 634100979Srwatson case MAC_CREATE_MBUF_MULTICAST_ENCAP: 635100979Srwatson mpc->mpc_ops->mpo_create_mbuf_multicast_encap = 636100979Srwatson mpe->mpe_function; 637100979Srwatson break; 638100979Srwatson case MAC_CREATE_MBUF_NETLAYER: 639100979Srwatson mpc->mpc_ops->mpo_create_mbuf_netlayer = 640100979Srwatson mpe->mpe_function; 641100979Srwatson break; 642100979Srwatson case MAC_FRAGMENT_MATCH: 643100979Srwatson mpc->mpc_ops->mpo_fragment_match = 644100979Srwatson mpe->mpe_function; 645100979Srwatson break; 646100979Srwatson case MAC_RELABEL_IFNET: 647100979Srwatson mpc->mpc_ops->mpo_relabel_ifnet = 648100979Srwatson mpe->mpe_function; 649100979Srwatson break; 650100979Srwatson case MAC_UPDATE_IPQ: 651100979Srwatson mpc->mpc_ops->mpo_update_ipq = 652100979Srwatson mpe->mpe_function; 653100979Srwatson break; 654100979Srwatson case MAC_CREATE_CRED: 655100979Srwatson mpc->mpc_ops->mpo_create_cred = 656100979Srwatson mpe->mpe_function; 657100979Srwatson break; 658100979Srwatson case MAC_EXECVE_TRANSITION: 659100979Srwatson mpc->mpc_ops->mpo_execve_transition = 660100979Srwatson mpe->mpe_function; 661100979Srwatson break; 662100979Srwatson case MAC_EXECVE_WILL_TRANSITION: 663100979Srwatson mpc->mpc_ops->mpo_execve_will_transition = 664100979Srwatson mpe->mpe_function; 665100979Srwatson break; 666100979Srwatson case MAC_CREATE_PROC0: 667104518Srwatson mpc->mpc_ops->mpo_create_proc0 = 668104518Srwatson mpe->mpe_function; 669100979Srwatson break; 670100979Srwatson case MAC_CREATE_PROC1: 671104518Srwatson mpc->mpc_ops->mpo_create_proc1 = 672104518Srwatson mpe->mpe_function; 673100979Srwatson break; 674100979Srwatson case MAC_RELABEL_CRED: 675100979Srwatson mpc->mpc_ops->mpo_relabel_cred = 676100979Srwatson mpe->mpe_function; 677100979Srwatson break; 678104338Srwatson case MAC_THREAD_USERRET: 679104338Srwatson mpc->mpc_ops->mpo_thread_userret = 680104338Srwatson mpe->mpe_function; 681104338Srwatson break; 682100979Srwatson case MAC_CHECK_BPFDESC_RECEIVE: 683100979Srwatson mpc->mpc_ops->mpo_check_bpfdesc_receive = 684100979Srwatson mpe->mpe_function; 685100979Srwatson break; 686100979Srwatson case MAC_CHECK_CRED_RELABEL: 687100979Srwatson mpc->mpc_ops->mpo_check_cred_relabel = 688100979Srwatson mpe->mpe_function; 689100979Srwatson break; 690100979Srwatson case MAC_CHECK_CRED_VISIBLE: 691100979Srwatson mpc->mpc_ops->mpo_check_cred_visible = 692100979Srwatson mpe->mpe_function; 693100979Srwatson break; 694100979Srwatson case MAC_CHECK_IFNET_RELABEL: 695100979Srwatson mpc->mpc_ops->mpo_check_ifnet_relabel = 696100979Srwatson mpe->mpe_function; 697100979Srwatson break; 698100979Srwatson case MAC_CHECK_IFNET_TRANSMIT: 699100979Srwatson mpc->mpc_ops->mpo_check_ifnet_transmit = 700100979Srwatson mpe->mpe_function; 701100979Srwatson break; 702100979Srwatson case MAC_CHECK_MOUNT_STAT: 703100979Srwatson mpc->mpc_ops->mpo_check_mount_stat = 704100979Srwatson mpe->mpe_function; 705100979Srwatson break; 706100979Srwatson case MAC_CHECK_PIPE_IOCTL: 707100979Srwatson mpc->mpc_ops->mpo_check_pipe_ioctl = 708100979Srwatson mpe->mpe_function; 709100979Srwatson break; 710102115Srwatson case MAC_CHECK_PIPE_POLL: 711102115Srwatson mpc->mpc_ops->mpo_check_pipe_poll = 712100979Srwatson mpe->mpe_function; 713100979Srwatson break; 714102115Srwatson case MAC_CHECK_PIPE_READ: 715102115Srwatson mpc->mpc_ops->mpo_check_pipe_read = 716102115Srwatson mpe->mpe_function; 717102115Srwatson break; 718100979Srwatson case MAC_CHECK_PIPE_RELABEL: 719100979Srwatson mpc->mpc_ops->mpo_check_pipe_relabel = 720100979Srwatson mpe->mpe_function; 721100979Srwatson break; 722102115Srwatson case MAC_CHECK_PIPE_STAT: 723102115Srwatson mpc->mpc_ops->mpo_check_pipe_stat = 724102115Srwatson mpe->mpe_function; 725102115Srwatson break; 726102115Srwatson case MAC_CHECK_PIPE_WRITE: 727102115Srwatson mpc->mpc_ops->mpo_check_pipe_write = 728102115Srwatson mpe->mpe_function; 729102115Srwatson break; 730100979Srwatson case MAC_CHECK_PROC_DEBUG: 731100979Srwatson mpc->mpc_ops->mpo_check_proc_debug = 732100979Srwatson mpe->mpe_function; 733100979Srwatson break; 734100979Srwatson case MAC_CHECK_PROC_SCHED: 735100979Srwatson mpc->mpc_ops->mpo_check_proc_sched = 736100979Srwatson mpe->mpe_function; 737100979Srwatson break; 738100979Srwatson case MAC_CHECK_PROC_SIGNAL: 739100979Srwatson mpc->mpc_ops->mpo_check_proc_signal = 740100979Srwatson mpe->mpe_function; 741100979Srwatson break; 742100979Srwatson case MAC_CHECK_SOCKET_BIND: 743100979Srwatson mpc->mpc_ops->mpo_check_socket_bind = 744100979Srwatson mpe->mpe_function; 745100979Srwatson break; 746100979Srwatson case MAC_CHECK_SOCKET_CONNECT: 747100979Srwatson mpc->mpc_ops->mpo_check_socket_connect = 748100979Srwatson mpe->mpe_function; 749100979Srwatson break; 750101933Srwatson case MAC_CHECK_SOCKET_DELIVER: 751101933Srwatson mpc->mpc_ops->mpo_check_socket_deliver = 752101933Srwatson mpe->mpe_function; 753101933Srwatson break; 754100979Srwatson case MAC_CHECK_SOCKET_LISTEN: 755100979Srwatson mpc->mpc_ops->mpo_check_socket_listen = 756100979Srwatson mpe->mpe_function; 757100979Srwatson break; 758100979Srwatson case MAC_CHECK_SOCKET_RELABEL: 759100979Srwatson mpc->mpc_ops->mpo_check_socket_relabel = 760100979Srwatson mpe->mpe_function; 761100979Srwatson break; 762100979Srwatson case MAC_CHECK_SOCKET_VISIBLE: 763100979Srwatson mpc->mpc_ops->mpo_check_socket_visible = 764100979Srwatson mpe->mpe_function; 765100979Srwatson break; 766100979Srwatson case MAC_CHECK_VNODE_ACCESS: 767100979Srwatson mpc->mpc_ops->mpo_check_vnode_access = 768100979Srwatson mpe->mpe_function; 769100979Srwatson break; 770100979Srwatson case MAC_CHECK_VNODE_CHDIR: 771100979Srwatson mpc->mpc_ops->mpo_check_vnode_chdir = 772100979Srwatson mpe->mpe_function; 773100979Srwatson break; 774100979Srwatson case MAC_CHECK_VNODE_CHROOT: 775100979Srwatson mpc->mpc_ops->mpo_check_vnode_chroot = 776100979Srwatson mpe->mpe_function; 777100979Srwatson break; 778100979Srwatson case MAC_CHECK_VNODE_CREATE: 779100979Srwatson mpc->mpc_ops->mpo_check_vnode_create = 780100979Srwatson mpe->mpe_function; 781100979Srwatson break; 782100979Srwatson case MAC_CHECK_VNODE_DELETE: 783100979Srwatson mpc->mpc_ops->mpo_check_vnode_delete = 784100979Srwatson mpe->mpe_function; 785100979Srwatson break; 786100979Srwatson case MAC_CHECK_VNODE_DELETEACL: 787100979Srwatson mpc->mpc_ops->mpo_check_vnode_deleteacl = 788100979Srwatson mpe->mpe_function; 789100979Srwatson break; 790100979Srwatson case MAC_CHECK_VNODE_EXEC: 791100979Srwatson mpc->mpc_ops->mpo_check_vnode_exec = 792100979Srwatson mpe->mpe_function; 793100979Srwatson break; 794100979Srwatson case MAC_CHECK_VNODE_GETACL: 795100979Srwatson mpc->mpc_ops->mpo_check_vnode_getacl = 796100979Srwatson mpe->mpe_function; 797100979Srwatson break; 798100979Srwatson case MAC_CHECK_VNODE_GETEXTATTR: 799100979Srwatson mpc->mpc_ops->mpo_check_vnode_getextattr = 800100979Srwatson mpe->mpe_function; 801100979Srwatson break; 802100979Srwatson case MAC_CHECK_VNODE_LOOKUP: 803100979Srwatson mpc->mpc_ops->mpo_check_vnode_lookup = 804100979Srwatson mpe->mpe_function; 805100979Srwatson break; 806100979Srwatson case MAC_CHECK_VNODE_MMAP_PERMS: 807100979Srwatson mpc->mpc_ops->mpo_check_vnode_mmap_perms = 808100979Srwatson mpe->mpe_function; 809100979Srwatson break; 810100979Srwatson case MAC_CHECK_VNODE_OPEN: 811100979Srwatson mpc->mpc_ops->mpo_check_vnode_open = 812100979Srwatson mpe->mpe_function; 813100979Srwatson break; 814102112Srwatson case MAC_CHECK_VNODE_POLL: 815102112Srwatson mpc->mpc_ops->mpo_check_vnode_poll = 816102112Srwatson mpe->mpe_function; 817102112Srwatson break; 818102112Srwatson case MAC_CHECK_VNODE_READ: 819102112Srwatson mpc->mpc_ops->mpo_check_vnode_read = 820102112Srwatson mpe->mpe_function; 821102112Srwatson break; 822100979Srwatson case MAC_CHECK_VNODE_READDIR: 823100979Srwatson mpc->mpc_ops->mpo_check_vnode_readdir = 824100979Srwatson mpe->mpe_function; 825100979Srwatson break; 826100979Srwatson case MAC_CHECK_VNODE_READLINK: 827100979Srwatson mpc->mpc_ops->mpo_check_vnode_readlink = 828100979Srwatson mpe->mpe_function; 829100979Srwatson break; 830100979Srwatson case MAC_CHECK_VNODE_RELABEL: 831100979Srwatson mpc->mpc_ops->mpo_check_vnode_relabel = 832100979Srwatson mpe->mpe_function; 833100979Srwatson break; 834100979Srwatson case MAC_CHECK_VNODE_RENAME_FROM: 835100979Srwatson mpc->mpc_ops->mpo_check_vnode_rename_from = 836100979Srwatson mpe->mpe_function; 837100979Srwatson break; 838100979Srwatson case MAC_CHECK_VNODE_RENAME_TO: 839100979Srwatson mpc->mpc_ops->mpo_check_vnode_rename_to = 840100979Srwatson mpe->mpe_function; 841100979Srwatson break; 842100979Srwatson case MAC_CHECK_VNODE_REVOKE: 843100979Srwatson mpc->mpc_ops->mpo_check_vnode_revoke = 844100979Srwatson mpe->mpe_function; 845100979Srwatson break; 846100979Srwatson case MAC_CHECK_VNODE_SETACL: 847100979Srwatson mpc->mpc_ops->mpo_check_vnode_setacl = 848100979Srwatson mpe->mpe_function; 849100979Srwatson break; 850100979Srwatson case MAC_CHECK_VNODE_SETEXTATTR: 851100979Srwatson mpc->mpc_ops->mpo_check_vnode_setextattr = 852100979Srwatson mpe->mpe_function; 853100979Srwatson break; 854100979Srwatson case MAC_CHECK_VNODE_SETFLAGS: 855100979Srwatson mpc->mpc_ops->mpo_check_vnode_setflags = 856100979Srwatson mpe->mpe_function; 857100979Srwatson break; 858100979Srwatson case MAC_CHECK_VNODE_SETMODE: 859100979Srwatson mpc->mpc_ops->mpo_check_vnode_setmode = 860100979Srwatson mpe->mpe_function; 861100979Srwatson break; 862100979Srwatson case MAC_CHECK_VNODE_SETOWNER: 863100979Srwatson mpc->mpc_ops->mpo_check_vnode_setowner = 864100979Srwatson mpe->mpe_function; 865100979Srwatson break; 866100979Srwatson case MAC_CHECK_VNODE_SETUTIMES: 867100979Srwatson mpc->mpc_ops->mpo_check_vnode_setutimes = 868100979Srwatson mpe->mpe_function; 869100979Srwatson break; 870100979Srwatson case MAC_CHECK_VNODE_STAT: 871100979Srwatson mpc->mpc_ops->mpo_check_vnode_stat = 872100979Srwatson mpe->mpe_function; 873100979Srwatson break; 874102112Srwatson case MAC_CHECK_VNODE_WRITE: 875102112Srwatson mpc->mpc_ops->mpo_check_vnode_write = 876102112Srwatson mpe->mpe_function; 877102112Srwatson break; 878100979Srwatson/* 879100979Srwatson default: 880100979Srwatson printf("MAC policy `%s': unknown operation %d\n", 881100979Srwatson mpc->mpc_name, mpe->mpe_constant); 882100979Srwatson return (EINVAL); 883100979Srwatson*/ 884100979Srwatson } 885100979Srwatson } 886100979Srwatson MAC_POLICY_LIST_LOCK(); 887100979Srwatson if (mac_policy_list_busy > 0) { 888100979Srwatson MAC_POLICY_LIST_UNLOCK(); 889100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 890100979Srwatson mpc->mpc_ops = NULL; 891100979Srwatson return (EBUSY); 892100979Srwatson } 893100979Srwatson LIST_FOREACH(tmpc, &mac_policy_list, mpc_list) { 894100979Srwatson if (strcmp(tmpc->mpc_name, mpc->mpc_name) == 0) { 895100979Srwatson MAC_POLICY_LIST_UNLOCK(); 896100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 897100979Srwatson mpc->mpc_ops = NULL; 898100979Srwatson return (EEXIST); 899100979Srwatson } 900100979Srwatson } 901100979Srwatson if (mpc->mpc_field_off != NULL) { 902100979Srwatson slot = ffs(mac_policy_offsets_free); 903100979Srwatson if (slot == 0) { 904100979Srwatson MAC_POLICY_LIST_UNLOCK(); 905100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 906100979Srwatson mpc->mpc_ops = NULL; 907100979Srwatson return (ENOMEM); 908100979Srwatson } 909100979Srwatson slot--; 910100979Srwatson mac_policy_offsets_free &= ~(1 << slot); 911100979Srwatson *mpc->mpc_field_off = slot; 912100979Srwatson } 913100979Srwatson mpc->mpc_runtime_flags |= MPC_RUNTIME_FLAG_REGISTERED; 914100979Srwatson LIST_INSERT_HEAD(&mac_policy_list, mpc, mpc_list); 915100979Srwatson 916100979Srwatson /* Per-policy initialization. */ 917100979Srwatson if (mpc->mpc_ops->mpo_init != NULL) 918100979Srwatson (*(mpc->mpc_ops->mpo_init))(mpc); 919100979Srwatson MAC_POLICY_LIST_UNLOCK(); 920100979Srwatson 921100979Srwatson printf("Security policy loaded: %s (%s)\n", mpc->mpc_fullname, 922100979Srwatson mpc->mpc_name); 923100979Srwatson 924100979Srwatson return (0); 925100979Srwatson} 926100979Srwatson 927100979Srwatsonstatic int 928100979Srwatsonmac_policy_unregister(struct mac_policy_conf *mpc) 929100979Srwatson{ 930100979Srwatson 931100979Srwatson#if 0 932100979Srwatson /* 933100979Srwatson * Don't allow unloading modules with private data. 934100979Srwatson */ 935100979Srwatson if (mpc->mpc_field_off != NULL) 936100979Srwatson return (EBUSY); 937100979Srwatson#endif 938100979Srwatson if ((mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_UNLOADOK) == 0) 939100979Srwatson return (EBUSY); 940100979Srwatson MAC_POLICY_LIST_LOCK(); 941100979Srwatson if (mac_policy_list_busy > 0) { 942100979Srwatson MAC_POLICY_LIST_UNLOCK(); 943100979Srwatson return (EBUSY); 944100979Srwatson } 945100979Srwatson if (mpc->mpc_ops->mpo_destroy != NULL) 946100979Srwatson (*(mpc->mpc_ops->mpo_destroy))(mpc); 947100979Srwatson 948100979Srwatson LIST_REMOVE(mpc, mpc_list); 949100979Srwatson MAC_POLICY_LIST_UNLOCK(); 950100979Srwatson 951100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 952100979Srwatson mpc->mpc_ops = NULL; 953100979Srwatson 954100979Srwatson printf("Security policy unload: %s (%s)\n", mpc->mpc_fullname, 955100979Srwatson mpc->mpc_name); 956100979Srwatson 957100979Srwatson return (0); 958100979Srwatson} 959100979Srwatson 960100979Srwatson/* 961100979Srwatson * Define an error value precedence, and given two arguments, selects the 962100979Srwatson * value with the higher precedence. 963100979Srwatson */ 964100979Srwatsonstatic int 965100979Srwatsonerror_select(int error1, int error2) 966100979Srwatson{ 967100979Srwatson 968100979Srwatson /* Certain decision-making errors take top priority. */ 969100979Srwatson if (error1 == EDEADLK || error2 == EDEADLK) 970100979Srwatson return (EDEADLK); 971100979Srwatson 972100979Srwatson /* Invalid arguments should be reported where possible. */ 973100979Srwatson if (error1 == EINVAL || error2 == EINVAL) 974100979Srwatson return (EINVAL); 975100979Srwatson 976100979Srwatson /* Precedence goes to "visibility", with both process and file. */ 977100979Srwatson if (error1 == ESRCH || error2 == ESRCH) 978100979Srwatson return (ESRCH); 979100979Srwatson 980100979Srwatson if (error1 == ENOENT || error2 == ENOENT) 981100979Srwatson return (ENOENT); 982100979Srwatson 983100979Srwatson /* Precedence goes to DAC/MAC protections. */ 984100979Srwatson if (error1 == EACCES || error2 == EACCES) 985100979Srwatson return (EACCES); 986100979Srwatson 987100979Srwatson /* Precedence goes to privilege. */ 988100979Srwatson if (error1 == EPERM || error2 == EPERM) 989100979Srwatson return (EPERM); 990100979Srwatson 991100979Srwatson /* Precedence goes to error over success; otherwise, arbitrary. */ 992100979Srwatson if (error1 != 0) 993100979Srwatson return (error1); 994100979Srwatson return (error2); 995100979Srwatson} 996100979Srwatson 997100979Srwatsonvoid 998100979Srwatsonmac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp) 999100979Srwatson{ 1000100979Srwatson 1001100979Srwatson MAC_PERFORM(update_devfsdirent, de, &de->de_label, vp, &vp->v_label); 1002100979Srwatson} 1003100979Srwatson 1004100979Srwatsonvoid 1005100979Srwatsonmac_update_procfsvnode(struct vnode *vp, struct ucred *cred) 1006100979Srwatson{ 1007100979Srwatson 1008100979Srwatson MAC_PERFORM(update_procfsvnode, vp, &vp->v_label, cred); 1009100979Srwatson} 1010100979Srwatson 1011100979Srwatson/* 1012100979Srwatson * Support callout for policies that manage their own externalization 1013100979Srwatson * using extended attributes. 1014100979Srwatson */ 1015100979Srwatsonstatic int 1016100979Srwatsonmac_update_vnode_from_extattr(struct vnode *vp, struct mount *mp) 1017100979Srwatson{ 1018100979Srwatson int error; 1019100979Srwatson 1020100979Srwatson MAC_CHECK(update_vnode_from_extattr, vp, &vp->v_label, mp, 1021100979Srwatson &mp->mnt_fslabel); 1022100979Srwatson 1023100979Srwatson return (error); 1024100979Srwatson} 1025100979Srwatson 1026100979Srwatson/* 1027100979Srwatson * Given an externalized mac label, internalize it and stamp it on a 1028100979Srwatson * vnode. 1029100979Srwatson */ 1030100979Srwatsonstatic int 1031100979Srwatsonmac_update_vnode_from_externalized(struct vnode *vp, struct mac *extmac) 1032100979Srwatson{ 1033100979Srwatson int error; 1034100979Srwatson 1035100979Srwatson MAC_CHECK(update_vnode_from_externalized, vp, &vp->v_label, extmac); 1036100979Srwatson 1037100979Srwatson return (error); 1038100979Srwatson} 1039100979Srwatson 1040100979Srwatson/* 1041100979Srwatson * Call out to individual policies to update the label in a vnode from 1042100979Srwatson * the mountpoint. 1043100979Srwatson */ 1044100979Srwatsonvoid 1045100979Srwatsonmac_update_vnode_from_mount(struct vnode *vp, struct mount *mp) 1046100979Srwatson{ 1047100979Srwatson 1048100979Srwatson MAC_PERFORM(update_vnode_from_mount, vp, &vp->v_label, mp, 1049100979Srwatson &mp->mnt_fslabel); 1050100979Srwatson 1051101308Sjeff ASSERT_VOP_LOCKED(vp, "mac_update_vnode_from_mount"); 1052100979Srwatson if (mac_cache_fslabel_in_vnode) 1053101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1054100979Srwatson} 1055100979Srwatson 1056100979Srwatson/* 1057100979Srwatson * Implementation of VOP_REFRESHLABEL() that relies on extended attributes 1058100979Srwatson * to store label data. Can be referenced by filesystems supporting 1059100979Srwatson * extended attributes. 1060100979Srwatson */ 1061100979Srwatsonint 1062100979Srwatsonvop_stdrefreshlabel_ea(struct vop_refreshlabel_args *ap) 1063100979Srwatson{ 1064100979Srwatson struct vnode *vp = ap->a_vp; 1065100979Srwatson struct mac extmac; 1066100979Srwatson int buflen, error; 1067100979Srwatson 1068100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdrefreshlabel_ea"); 1069100979Srwatson 1070100979Srwatson /* 1071100979Srwatson * Call out to external policies first. Order doesn't really 1072100979Srwatson * matter, as long as failure of one assures failure of all. 1073100979Srwatson */ 1074100979Srwatson error = mac_update_vnode_from_extattr(vp, vp->v_mount); 1075100979Srwatson if (error) 1076100979Srwatson return (error); 1077100979Srwatson 1078100979Srwatson buflen = sizeof(extmac); 1079100979Srwatson error = vn_extattr_get(vp, IO_NODELOCKED, 1080100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, &buflen, 1081100979Srwatson (char *)&extmac, curthread); 1082100979Srwatson switch (error) { 1083100979Srwatson case 0: 1084100979Srwatson /* Got it */ 1085100979Srwatson break; 1086100979Srwatson 1087100979Srwatson case ENOATTR: 1088100979Srwatson /* 1089100979Srwatson * Use the label from the mount point. 1090100979Srwatson */ 1091100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1092100979Srwatson return (0); 1093100979Srwatson 1094100979Srwatson case EOPNOTSUPP: 1095100979Srwatson default: 1096100979Srwatson /* Fail horribly. */ 1097100979Srwatson return (error); 1098100979Srwatson } 1099100979Srwatson 1100100979Srwatson if (buflen != sizeof(extmac)) 1101100979Srwatson error = EPERM; /* Fail very closed. */ 1102100979Srwatson if (error == 0) 1103100979Srwatson error = mac_update_vnode_from_externalized(vp, &extmac); 1104100979Srwatson if (error == 0) 1105101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1106100979Srwatson else { 1107100979Srwatson struct vattr va; 1108100979Srwatson 1109100979Srwatson printf("Corrupted label on %s", 1110100979Srwatson vp->v_mount->mnt_stat.f_mntonname); 1111100979Srwatson if (VOP_GETATTR(vp, &va, curthread->td_ucred, curthread) == 0) 1112100979Srwatson printf(" inum %ld", va.va_fileid); 1113104268Srwatson#ifdef MAC_DEBUG 1114100979Srwatson if (mac_debug_label_fallback) { 1115100979Srwatson printf(", falling back.\n"); 1116100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1117100979Srwatson error = 0; 1118100979Srwatson } else { 1119104268Srwatson#endif 1120100979Srwatson printf(".\n"); 1121100979Srwatson error = EPERM; 1122104268Srwatson#ifdef MAC_DEBUG 1123100979Srwatson } 1124104268Srwatson#endif 1125100979Srwatson } 1126100979Srwatson 1127100979Srwatson return (error); 1128100979Srwatson} 1129100979Srwatson 1130100979Srwatson/* 1131100979Srwatson * Make sure the vnode label is up-to-date. If EOPNOTSUPP, then we handle 1132100979Srwatson * the labeling activity outselves. Filesystems should be careful not 1133100979Srwatson * to change their minds regarding whether they support vop_refreshlabel() 1134100979Srwatson * for a vnode or not. Don't cache the vnode here, allow the file 1135100979Srwatson * system code to determine if it's safe to cache. If we update from 1136100979Srwatson * the mount, don't cache since a change to the mount label should affect 1137100979Srwatson * all vnodes. 1138100979Srwatson */ 1139100979Srwatsonstatic int 1140100979Srwatsonvn_refreshlabel(struct vnode *vp, struct ucred *cred) 1141100979Srwatson{ 1142100979Srwatson int error; 1143100979Srwatson 1144100979Srwatson ASSERT_VOP_LOCKED(vp, "vn_refreshlabel"); 1145100979Srwatson 1146100979Srwatson if (vp->v_mount == NULL) { 1147100979Srwatson/* 1148100979Srwatson Eventually, we probably want to special-case refreshing 1149100979Srwatson of deadfs vnodes, and if there's a lock-free race somewhere, 1150100979Srwatson that case might be handled here. 1151100979Srwatson 1152100979Srwatson mac_update_vnode_deadfs(vp); 1153100979Srwatson return (0); 1154100979Srwatson */ 1155100979Srwatson /* printf("vn_refreshlabel: null v_mount\n"); */ 1156103314Snjl if (vp->v_type != VNON) 1157100979Srwatson printf( 1158103314Snjl "vn_refreshlabel: null v_mount with non-VNON\n"); 1159100979Srwatson return (EBADF); 1160100979Srwatson } 1161100979Srwatson 1162101308Sjeff if (vp->v_vflag & VV_CACHEDLABEL) { 1163100979Srwatson mac_vnode_label_cache_hits++; 1164100979Srwatson return (0); 1165100979Srwatson } else 1166100979Srwatson mac_vnode_label_cache_misses++; 1167100979Srwatson 1168100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1169100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1170100979Srwatson return (0); 1171100979Srwatson } 1172100979Srwatson 1173100979Srwatson error = VOP_REFRESHLABEL(vp, cred, curthread); 1174100979Srwatson switch (error) { 1175100979Srwatson case EOPNOTSUPP: 1176100979Srwatson /* 1177100979Srwatson * If labels are not supported on this vnode, fall back to 1178100979Srwatson * the label in the mount and propagate it to the vnode. 1179100979Srwatson * There should probably be some sort of policy/flag/decision 1180100979Srwatson * about doing this. 1181100979Srwatson */ 1182100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1183100979Srwatson error = 0; 1184100979Srwatson default: 1185100979Srwatson return (error); 1186100979Srwatson } 1187100979Srwatson} 1188100979Srwatson 1189100979Srwatson/* 1190100979Srwatson * Helper function for file systems using the vop_std*_ea() calls. This 1191100979Srwatson * function must be called after EA service is available for the vnode, 1192100979Srwatson * but before it's hooked up to the namespace so that the node persists 1193100979Srwatson * if there's a crash, or before it can be accessed. On successful 1194100979Srwatson * commit of the label to disk (etc), do cache the label. 1195100979Srwatson */ 1196100979Srwatsonint 1197100979Srwatsonvop_stdcreatevnode_ea(struct vnode *dvp, struct vnode *tvp, struct ucred *cred) 1198100979Srwatson{ 1199100979Srwatson struct mac extmac; 1200100979Srwatson int error; 1201100979Srwatson 1202101308Sjeff ASSERT_VOP_LOCKED(tvp, "vop_stdcreatevnode_ea"); 1203100979Srwatson if ((dvp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1204100979Srwatson mac_update_vnode_from_mount(tvp, tvp->v_mount); 1205100979Srwatson } else { 1206100979Srwatson error = vn_refreshlabel(dvp, cred); 1207100979Srwatson if (error) 1208100979Srwatson return (error); 1209100979Srwatson 1210100979Srwatson /* 1211100979Srwatson * Stick the label in the vnode. Then try to write to 1212100979Srwatson * disk. If we fail, return a failure to abort the 1213100979Srwatson * create operation. Really, this failure shouldn't 1214100979Srwatson * happen except in fairly unusual circumstances (out 1215100979Srwatson * of disk, etc). 1216100979Srwatson */ 1217100979Srwatson mac_create_vnode(cred, dvp, tvp); 1218100979Srwatson 1219100979Srwatson error = mac_stdcreatevnode_ea(tvp); 1220100979Srwatson if (error) 1221100979Srwatson return (error); 1222100979Srwatson 1223100979Srwatson /* 1224100979Srwatson * XXX: Eventually this will go away and all policies will 1225100979Srwatson * directly manage their extended attributes. 1226100979Srwatson */ 1227100979Srwatson error = mac_externalize(&tvp->v_label, &extmac); 1228100979Srwatson if (error) 1229100979Srwatson return (error); 1230100979Srwatson 1231100979Srwatson error = vn_extattr_set(tvp, IO_NODELOCKED, 1232100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 1233100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 1234100979Srwatson if (error == 0) 1235101308Sjeff tvp->v_vflag |= VV_CACHEDLABEL; 1236100979Srwatson else { 1237100979Srwatson#if 0 1238100979Srwatson /* 1239100979Srwatson * In theory, we could have fall-back behavior here. 1240100979Srwatson * It would probably be incorrect. 1241100979Srwatson */ 1242100979Srwatson#endif 1243100979Srwatson return (error); 1244100979Srwatson } 1245100979Srwatson } 1246100979Srwatson 1247100979Srwatson return (0); 1248100979Srwatson} 1249100979Srwatson 1250100979Srwatsonvoid 1251100979Srwatsonmac_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp) 1252100979Srwatson{ 1253100979Srwatson int error; 1254100979Srwatson 1255100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_execve_transition"); 1256100979Srwatson 1257100979Srwatson error = vn_refreshlabel(vp, old); 1258100979Srwatson if (error) { 1259100979Srwatson printf("mac_execve_transition: vn_refreshlabel returned %d\n", 1260100979Srwatson error); 1261100979Srwatson printf("mac_execve_transition: using old vnode label\n"); 1262100979Srwatson } 1263100979Srwatson 1264100979Srwatson MAC_PERFORM(execve_transition, old, new, vp, &vp->v_label); 1265100979Srwatson} 1266100979Srwatson 1267100979Srwatsonint 1268100979Srwatsonmac_execve_will_transition(struct ucred *old, struct vnode *vp) 1269100979Srwatson{ 1270100979Srwatson int error, result; 1271100979Srwatson 1272100979Srwatson error = vn_refreshlabel(vp, old); 1273100979Srwatson if (error) 1274100979Srwatson return (error); 1275100979Srwatson 1276100979Srwatson result = 0; 1277100979Srwatson MAC_BOOLEAN(execve_will_transition, ||, old, vp, &vp->v_label); 1278100979Srwatson 1279100979Srwatson return (result); 1280100979Srwatson} 1281100979Srwatson 1282100979Srwatsonstatic void 1283100979Srwatsonmac_init_label(struct label *label) 1284100979Srwatson{ 1285100979Srwatson 1286100979Srwatson bzero(label, sizeof(*label)); 1287100979Srwatson label->l_flags = MAC_FLAG_INITIALIZED; 1288100979Srwatson} 1289100979Srwatson 1290100979Srwatsonstatic void 1291100979Srwatsonmac_init_structmac(struct mac *mac) 1292100979Srwatson{ 1293100979Srwatson 1294100979Srwatson bzero(mac, sizeof(*mac)); 1295100979Srwatson mac->m_macflags = MAC_FLAG_INITIALIZED; 1296100979Srwatson} 1297100979Srwatson 1298100979Srwatsonstatic void 1299100979Srwatsonmac_destroy_label(struct label *label) 1300100979Srwatson{ 1301100979Srwatson 1302100979Srwatson KASSERT(label->l_flags & MAC_FLAG_INITIALIZED, 1303100979Srwatson ("destroying uninitialized label")); 1304100979Srwatson 1305100979Srwatson bzero(label, sizeof(*label)); 1306100979Srwatson /* implicit: label->l_flags &= ~MAC_FLAG_INITIALIZED; */ 1307100979Srwatson} 1308100979Srwatson 1309100979Srwatsonint 1310100979Srwatsonmac_init_mbuf(struct mbuf *m, int how) 1311100979Srwatson{ 1312100979Srwatson KASSERT(m->m_flags & M_PKTHDR, ("mac_init_mbuf on non-header mbuf")); 1313100979Srwatson 1314100979Srwatson /* "how" is one of M_(TRY|DONT)WAIT */ 1315100979Srwatson mac_init_label(&m->m_pkthdr.label); 1316104514Srwatson MAC_PERFORM(init_mbuf_label, &m->m_pkthdr.label, how); 1317101988Srwatson#ifdef MAC_DEBUG 1318100979Srwatson atomic_add_int(&nmacmbufs, 1); 1319101988Srwatson#endif 1320100979Srwatson return (0); 1321100979Srwatson} 1322100979Srwatson 1323100979Srwatsonvoid 1324100979Srwatsonmac_destroy_mbuf(struct mbuf *m) 1325100979Srwatson{ 1326100979Srwatson 1327104514Srwatson MAC_PERFORM(destroy_mbuf_label, &m->m_pkthdr.label); 1328100979Srwatson mac_destroy_label(&m->m_pkthdr.label); 1329101988Srwatson#ifdef MAC_DEBUG 1330100979Srwatson atomic_subtract_int(&nmacmbufs, 1); 1331101988Srwatson#endif 1332100979Srwatson} 1333100979Srwatson 1334100979Srwatsonvoid 1335100979Srwatsonmac_init_cred(struct ucred *cr) 1336100979Srwatson{ 1337100979Srwatson 1338100979Srwatson mac_init_label(&cr->cr_label); 1339104514Srwatson MAC_PERFORM(init_cred_label, &cr->cr_label); 1340101988Srwatson#ifdef MAC_DEBUG 1341100979Srwatson atomic_add_int(&nmaccreds, 1); 1342101988Srwatson#endif 1343100979Srwatson} 1344100979Srwatson 1345100979Srwatsonvoid 1346100979Srwatsonmac_destroy_cred(struct ucred *cr) 1347100979Srwatson{ 1348100979Srwatson 1349104514Srwatson MAC_PERFORM(destroy_cred_label, &cr->cr_label); 1350100979Srwatson mac_destroy_label(&cr->cr_label); 1351101988Srwatson#ifdef MAC_DEBUG 1352100979Srwatson atomic_subtract_int(&nmaccreds, 1); 1353101988Srwatson#endif 1354100979Srwatson} 1355100979Srwatson 1356100979Srwatsonvoid 1357100979Srwatsonmac_init_ifnet(struct ifnet *ifp) 1358100979Srwatson{ 1359100979Srwatson 1360100979Srwatson mac_init_label(&ifp->if_label); 1361104514Srwatson MAC_PERFORM(init_ifnet_label, &ifp->if_label); 1362101988Srwatson#ifdef MAC_DEBUG 1363100979Srwatson atomic_add_int(&nmacifnets, 1); 1364101988Srwatson#endif 1365100979Srwatson} 1366100979Srwatson 1367100979Srwatsonvoid 1368100979Srwatsonmac_destroy_ifnet(struct ifnet *ifp) 1369100979Srwatson{ 1370100979Srwatson 1371104514Srwatson MAC_PERFORM(destroy_ifnet_label, &ifp->if_label); 1372100979Srwatson mac_destroy_label(&ifp->if_label); 1373101988Srwatson#ifdef MAC_DEBUG 1374100979Srwatson atomic_subtract_int(&nmacifnets, 1); 1375101988Srwatson#endif 1376100979Srwatson} 1377100979Srwatson 1378100979Srwatsonvoid 1379100979Srwatsonmac_init_ipq(struct ipq *ipq) 1380100979Srwatson{ 1381100979Srwatson 1382100979Srwatson mac_init_label(&ipq->ipq_label); 1383104514Srwatson MAC_PERFORM(init_ipq_label, &ipq->ipq_label); 1384101988Srwatson#ifdef MAC_DEBUG 1385100979Srwatson atomic_add_int(&nmacipqs, 1); 1386101988Srwatson#endif 1387100979Srwatson} 1388100979Srwatson 1389100979Srwatsonvoid 1390100979Srwatsonmac_destroy_ipq(struct ipq *ipq) 1391100979Srwatson{ 1392100979Srwatson 1393104514Srwatson MAC_PERFORM(destroy_ipq_label, &ipq->ipq_label); 1394100979Srwatson mac_destroy_label(&ipq->ipq_label); 1395101988Srwatson#ifdef MAC_DEBUG 1396100979Srwatson atomic_subtract_int(&nmacipqs, 1); 1397101988Srwatson#endif 1398100979Srwatson} 1399100979Srwatson 1400100979Srwatsonvoid 1401100979Srwatsonmac_init_socket(struct socket *socket) 1402100979Srwatson{ 1403100979Srwatson 1404100979Srwatson mac_init_label(&socket->so_label); 1405100979Srwatson mac_init_label(&socket->so_peerlabel); 1406104514Srwatson MAC_PERFORM(init_socket_label, &socket->so_label); 1407104514Srwatson MAC_PERFORM(init_socket_peer_label, &socket->so_peerlabel); 1408101988Srwatson#ifdef MAC_DEBUG 1409100979Srwatson atomic_add_int(&nmacsockets, 1); 1410101988Srwatson#endif 1411100979Srwatson} 1412100979Srwatson 1413100979Srwatsonvoid 1414100979Srwatsonmac_destroy_socket(struct socket *socket) 1415100979Srwatson{ 1416100979Srwatson 1417104514Srwatson MAC_PERFORM(destroy_socket_label, &socket->so_label); 1418104514Srwatson MAC_PERFORM(destroy_socket_peer_label, &socket->so_peerlabel); 1419100979Srwatson mac_destroy_label(&socket->so_label); 1420100979Srwatson mac_destroy_label(&socket->so_peerlabel); 1421101988Srwatson#ifdef MAC_DEBUG 1422100979Srwatson atomic_subtract_int(&nmacsockets, 1); 1423101988Srwatson#endif 1424100979Srwatson} 1425100979Srwatson 1426100979Srwatsonvoid 1427100979Srwatsonmac_init_pipe(struct pipe *pipe) 1428100979Srwatson{ 1429100979Srwatson struct label *label; 1430100979Srwatson 1431100979Srwatson label = malloc(sizeof(struct label), M_MACPIPELABEL, M_ZERO|M_WAITOK); 1432100979Srwatson mac_init_label(label); 1433100979Srwatson pipe->pipe_label = label; 1434100979Srwatson pipe->pipe_peer->pipe_label = label; 1435104514Srwatson MAC_PERFORM(init_pipe_label, pipe->pipe_label); 1436101988Srwatson#ifdef MAC_DEBUG 1437100979Srwatson atomic_add_int(&nmacpipes, 1); 1438101988Srwatson#endif 1439100979Srwatson} 1440100979Srwatson 1441100979Srwatsonvoid 1442100979Srwatsonmac_destroy_pipe(struct pipe *pipe) 1443100979Srwatson{ 1444100979Srwatson 1445104514Srwatson MAC_PERFORM(destroy_pipe_label, pipe->pipe_label); 1446100979Srwatson mac_destroy_label(pipe->pipe_label); 1447100979Srwatson free(pipe->pipe_label, M_MACPIPELABEL); 1448101988Srwatson#ifdef MAC_DEBUG 1449100979Srwatson atomic_subtract_int(&nmacpipes, 1); 1450101988Srwatson#endif 1451100979Srwatson} 1452100979Srwatson 1453100979Srwatsonvoid 1454100979Srwatsonmac_init_bpfdesc(struct bpf_d *bpf_d) 1455100979Srwatson{ 1456100979Srwatson 1457100979Srwatson mac_init_label(&bpf_d->bd_label); 1458104514Srwatson MAC_PERFORM(init_bpfdesc_label, &bpf_d->bd_label); 1459101988Srwatson#ifdef MAC_DEBUG 1460100979Srwatson atomic_add_int(&nmacbpfdescs, 1); 1461101988Srwatson#endif 1462100979Srwatson} 1463100979Srwatson 1464100979Srwatsonvoid 1465100979Srwatsonmac_destroy_bpfdesc(struct bpf_d *bpf_d) 1466100979Srwatson{ 1467100979Srwatson 1468104514Srwatson MAC_PERFORM(destroy_bpfdesc_label, &bpf_d->bd_label); 1469100979Srwatson mac_destroy_label(&bpf_d->bd_label); 1470101988Srwatson#ifdef MAC_DEBUG 1471100979Srwatson atomic_subtract_int(&nmacbpfdescs, 1); 1472101988Srwatson#endif 1473100979Srwatson} 1474100979Srwatson 1475100979Srwatsonvoid 1476100979Srwatsonmac_init_mount(struct mount *mp) 1477100979Srwatson{ 1478100979Srwatson 1479100979Srwatson mac_init_label(&mp->mnt_mntlabel); 1480100979Srwatson mac_init_label(&mp->mnt_fslabel); 1481104514Srwatson MAC_PERFORM(init_mount_label, &mp->mnt_mntlabel); 1482104514Srwatson MAC_PERFORM(init_mount_fs_label, &mp->mnt_fslabel); 1483101988Srwatson#ifdef MAC_DEBUG 1484100979Srwatson atomic_add_int(&nmacmounts, 1); 1485101988Srwatson#endif 1486100979Srwatson} 1487100979Srwatson 1488100979Srwatsonvoid 1489100979Srwatsonmac_destroy_mount(struct mount *mp) 1490100979Srwatson{ 1491100979Srwatson 1492104514Srwatson MAC_PERFORM(destroy_mount_label, &mp->mnt_mntlabel); 1493104514Srwatson MAC_PERFORM(destroy_mount_fs_label, &mp->mnt_fslabel); 1494100979Srwatson mac_destroy_label(&mp->mnt_fslabel); 1495100979Srwatson mac_destroy_label(&mp->mnt_mntlabel); 1496101988Srwatson#ifdef MAC_DEBUG 1497100979Srwatson atomic_subtract_int(&nmacmounts, 1); 1498101988Srwatson#endif 1499100979Srwatson} 1500100979Srwatson 1501100979Srwatsonstatic void 1502100979Srwatsonmac_init_temp(struct label *label) 1503100979Srwatson{ 1504100979Srwatson 1505100979Srwatson mac_init_label(label); 1506104514Srwatson MAC_PERFORM(init_temp_label, label); 1507101988Srwatson#ifdef MAC_DEBUG 1508100979Srwatson atomic_add_int(&nmactemp, 1); 1509101988Srwatson#endif 1510100979Srwatson} 1511100979Srwatson 1512100979Srwatsonstatic void 1513100979Srwatsonmac_destroy_temp(struct label *label) 1514100979Srwatson{ 1515100979Srwatson 1516104514Srwatson MAC_PERFORM(destroy_temp_label, label); 1517100979Srwatson mac_destroy_label(label); 1518101988Srwatson#ifdef MAC_DEBUG 1519100979Srwatson atomic_subtract_int(&nmactemp, 1); 1520101988Srwatson#endif 1521100979Srwatson} 1522100979Srwatson 1523100979Srwatsonvoid 1524100979Srwatsonmac_init_vnode(struct vnode *vp) 1525100979Srwatson{ 1526100979Srwatson 1527100979Srwatson mac_init_label(&vp->v_label); 1528104514Srwatson MAC_PERFORM(init_vnode_label, &vp->v_label); 1529101988Srwatson#ifdef MAC_DEBUG 1530100979Srwatson atomic_add_int(&nmacvnodes, 1); 1531101988Srwatson#endif 1532100979Srwatson} 1533100979Srwatson 1534100979Srwatsonvoid 1535100979Srwatsonmac_destroy_vnode(struct vnode *vp) 1536100979Srwatson{ 1537100979Srwatson 1538104514Srwatson MAC_PERFORM(destroy_vnode_label, &vp->v_label); 1539100979Srwatson mac_destroy_label(&vp->v_label); 1540101988Srwatson#ifdef MAC_DEBUG 1541100979Srwatson atomic_subtract_int(&nmacvnodes, 1); 1542101988Srwatson#endif 1543100979Srwatson} 1544100979Srwatson 1545100979Srwatsonvoid 1546100979Srwatsonmac_init_devfsdirent(struct devfs_dirent *de) 1547100979Srwatson{ 1548100979Srwatson 1549100979Srwatson mac_init_label(&de->de_label); 1550104514Srwatson MAC_PERFORM(init_devfsdirent_label, &de->de_label); 1551101988Srwatson#ifdef MAC_DEBUG 1552100979Srwatson atomic_add_int(&nmacdevfsdirents, 1); 1553101988Srwatson#endif 1554100979Srwatson} 1555100979Srwatson 1556100979Srwatsonvoid 1557100979Srwatsonmac_destroy_devfsdirent(struct devfs_dirent *de) 1558100979Srwatson{ 1559100979Srwatson 1560104514Srwatson MAC_PERFORM(destroy_devfsdirent_label, &de->de_label); 1561100979Srwatson mac_destroy_label(&de->de_label); 1562101988Srwatson#ifdef MAC_DEBUG 1563100979Srwatson atomic_subtract_int(&nmacdevfsdirents, 1); 1564101988Srwatson#endif 1565100979Srwatson} 1566100979Srwatson 1567100979Srwatsonstatic int 1568100979Srwatsonmac_externalize(struct label *label, struct mac *mac) 1569100979Srwatson{ 1570100979Srwatson int error; 1571100979Srwatson 1572100979Srwatson mac_init_structmac(mac); 1573100979Srwatson MAC_CHECK(externalize, label, mac); 1574100979Srwatson 1575100979Srwatson return (error); 1576100979Srwatson} 1577100979Srwatson 1578100979Srwatsonstatic int 1579100979Srwatsonmac_internalize(struct label *label, struct mac *mac) 1580100979Srwatson{ 1581100979Srwatson int error; 1582100979Srwatson 1583100979Srwatson mac_init_temp(label); 1584100979Srwatson MAC_CHECK(internalize, label, mac); 1585100979Srwatson if (error) 1586100979Srwatson mac_destroy_temp(label); 1587100979Srwatson 1588100979Srwatson return (error); 1589100979Srwatson} 1590100979Srwatson 1591100979Srwatson/* 1592100979Srwatson * Initialize MAC label for the first kernel process, from which other 1593100979Srwatson * kernel processes and threads are spawned. 1594100979Srwatson */ 1595100979Srwatsonvoid 1596100979Srwatsonmac_create_proc0(struct ucred *cred) 1597100979Srwatson{ 1598100979Srwatson 1599100979Srwatson MAC_PERFORM(create_proc0, cred); 1600100979Srwatson} 1601100979Srwatson 1602100979Srwatson/* 1603100979Srwatson * Initialize MAC label for the first userland process, from which other 1604100979Srwatson * userland processes and threads are spawned. 1605100979Srwatson */ 1606100979Srwatsonvoid 1607100979Srwatsonmac_create_proc1(struct ucred *cred) 1608100979Srwatson{ 1609100979Srwatson 1610100979Srwatson MAC_PERFORM(create_proc1, cred); 1611100979Srwatson} 1612100979Srwatson 1613104338Srwatsonvoid 1614104338Srwatsonmac_thread_userret(struct thread *td) 1615104338Srwatson{ 1616104338Srwatson 1617104338Srwatson MAC_PERFORM(thread_userret, td); 1618104338Srwatson} 1619104338Srwatson 1620100979Srwatson/* 1621100979Srwatson * When a new process is created, its label must be initialized. Generally, 1622100979Srwatson * this involves inheritence from the parent process, modulo possible 1623100979Srwatson * deltas. This function allows that processing to take place. 1624100979Srwatson */ 1625100979Srwatsonvoid 1626100979Srwatsonmac_create_cred(struct ucred *parent_cred, struct ucred *child_cred) 1627100979Srwatson{ 1628100979Srwatson 1629100979Srwatson MAC_PERFORM(create_cred, parent_cred, child_cred); 1630100979Srwatson} 1631100979Srwatson 1632100979Srwatsonint 1633100979Srwatsonmac_check_vnode_access(struct ucred *cred, struct vnode *vp, int flags) 1634100979Srwatson{ 1635100979Srwatson int error; 1636100979Srwatson 1637100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_access"); 1638100979Srwatson 1639100979Srwatson if (!mac_enforce_fs) 1640100979Srwatson return (0); 1641100979Srwatson 1642100979Srwatson error = vn_refreshlabel(vp, cred); 1643100979Srwatson if (error) 1644100979Srwatson return (error); 1645100979Srwatson 1646100979Srwatson MAC_CHECK(check_vnode_access, cred, vp, &vp->v_label, flags); 1647100979Srwatson return (error); 1648100979Srwatson} 1649100979Srwatson 1650100979Srwatsonint 1651100979Srwatsonmac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp) 1652100979Srwatson{ 1653100979Srwatson int error; 1654100979Srwatson 1655100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chdir"); 1656100979Srwatson 1657100979Srwatson if (!mac_enforce_fs) 1658100979Srwatson return (0); 1659100979Srwatson 1660100979Srwatson error = vn_refreshlabel(dvp, cred); 1661100979Srwatson if (error) 1662100979Srwatson return (error); 1663100979Srwatson 1664100979Srwatson MAC_CHECK(check_vnode_chdir, cred, dvp, &dvp->v_label); 1665100979Srwatson return (error); 1666100979Srwatson} 1667100979Srwatson 1668100979Srwatsonint 1669100979Srwatsonmac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp) 1670100979Srwatson{ 1671100979Srwatson int error; 1672100979Srwatson 1673100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chroot"); 1674100979Srwatson 1675100979Srwatson if (!mac_enforce_fs) 1676100979Srwatson return (0); 1677100979Srwatson 1678100979Srwatson error = vn_refreshlabel(dvp, cred); 1679100979Srwatson if (error) 1680100979Srwatson return (error); 1681100979Srwatson 1682100979Srwatson MAC_CHECK(check_vnode_chroot, cred, dvp, &dvp->v_label); 1683100979Srwatson return (error); 1684100979Srwatson} 1685100979Srwatson 1686100979Srwatsonint 1687100979Srwatsonmac_check_vnode_create(struct ucred *cred, struct vnode *dvp, 1688100979Srwatson struct componentname *cnp, struct vattr *vap) 1689100979Srwatson{ 1690100979Srwatson int error; 1691100979Srwatson 1692100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_create"); 1693100979Srwatson 1694100979Srwatson if (!mac_enforce_fs) 1695100979Srwatson return (0); 1696100979Srwatson 1697100979Srwatson error = vn_refreshlabel(dvp, cred); 1698100979Srwatson if (error) 1699100979Srwatson return (error); 1700100979Srwatson 1701100979Srwatson MAC_CHECK(check_vnode_create, cred, dvp, &dvp->v_label, cnp, vap); 1702100979Srwatson return (error); 1703100979Srwatson} 1704100979Srwatson 1705100979Srwatsonint 1706100979Srwatsonmac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, struct vnode *vp, 1707100979Srwatson struct componentname *cnp) 1708100979Srwatson{ 1709100979Srwatson int error; 1710100979Srwatson 1711100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_delete"); 1712100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_delete"); 1713100979Srwatson 1714100979Srwatson if (!mac_enforce_fs) 1715100979Srwatson return (0); 1716100979Srwatson 1717100979Srwatson error = vn_refreshlabel(dvp, cred); 1718100979Srwatson if (error) 1719100979Srwatson return (error); 1720100979Srwatson error = vn_refreshlabel(vp, cred); 1721100979Srwatson if (error) 1722100979Srwatson return (error); 1723100979Srwatson 1724100979Srwatson MAC_CHECK(check_vnode_delete, cred, dvp, &dvp->v_label, vp, 1725100979Srwatson &vp->v_label, cnp); 1726100979Srwatson return (error); 1727100979Srwatson} 1728100979Srwatson 1729100979Srwatsonint 1730100979Srwatsonmac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 1731100979Srwatson acl_type_t type) 1732100979Srwatson{ 1733100979Srwatson int error; 1734100979Srwatson 1735100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_deleteacl"); 1736100979Srwatson 1737100979Srwatson if (!mac_enforce_fs) 1738100979Srwatson return (0); 1739100979Srwatson 1740100979Srwatson error = vn_refreshlabel(vp, cred); 1741100979Srwatson if (error) 1742100979Srwatson return (error); 1743100979Srwatson 1744100979Srwatson MAC_CHECK(check_vnode_deleteacl, cred, vp, &vp->v_label, type); 1745100979Srwatson return (error); 1746100979Srwatson} 1747100979Srwatson 1748100979Srwatsonint 1749100979Srwatsonmac_check_vnode_exec(struct ucred *cred, struct vnode *vp) 1750100979Srwatson{ 1751100979Srwatson int error; 1752100979Srwatson 1753102102Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_exec"); 1754102102Srwatson 1755100979Srwatson if (!mac_enforce_process && !mac_enforce_fs) 1756100979Srwatson return (0); 1757100979Srwatson 1758100979Srwatson error = vn_refreshlabel(vp, cred); 1759100979Srwatson if (error) 1760100979Srwatson return (error); 1761100979Srwatson MAC_CHECK(check_vnode_exec, cred, vp, &vp->v_label); 1762100979Srwatson 1763100979Srwatson return (error); 1764100979Srwatson} 1765100979Srwatson 1766100979Srwatsonint 1767100979Srwatsonmac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, acl_type_t type) 1768100979Srwatson{ 1769100979Srwatson int error; 1770100979Srwatson 1771100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getacl"); 1772100979Srwatson 1773100979Srwatson if (!mac_enforce_fs) 1774100979Srwatson return (0); 1775100979Srwatson 1776100979Srwatson error = vn_refreshlabel(vp, cred); 1777100979Srwatson if (error) 1778100979Srwatson return (error); 1779100979Srwatson 1780100979Srwatson MAC_CHECK(check_vnode_getacl, cred, vp, &vp->v_label, type); 1781100979Srwatson return (error); 1782100979Srwatson} 1783100979Srwatson 1784100979Srwatsonint 1785100979Srwatsonmac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 1786100979Srwatson int attrnamespace, const char *name, struct uio *uio) 1787100979Srwatson{ 1788100979Srwatson int error; 1789100979Srwatson 1790100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getextattr"); 1791100979Srwatson 1792100979Srwatson if (!mac_enforce_fs) 1793100979Srwatson return (0); 1794100979Srwatson 1795100979Srwatson error = vn_refreshlabel(vp, cred); 1796100979Srwatson if (error) 1797100979Srwatson return (error); 1798100979Srwatson 1799100979Srwatson MAC_CHECK(check_vnode_getextattr, cred, vp, &vp->v_label, 1800100979Srwatson attrnamespace, name, uio); 1801100979Srwatson return (error); 1802100979Srwatson} 1803100979Srwatson 1804100979Srwatsonint 1805100979Srwatsonmac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 1806100979Srwatson struct componentname *cnp) 1807100979Srwatson{ 1808100979Srwatson int error; 1809100979Srwatson 1810100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_lookup"); 1811100979Srwatson 1812100979Srwatson if (!mac_enforce_fs) 1813100979Srwatson return (0); 1814100979Srwatson 1815100979Srwatson error = vn_refreshlabel(dvp, cred); 1816100979Srwatson if (error) 1817100979Srwatson return (error); 1818100979Srwatson 1819100979Srwatson MAC_CHECK(check_vnode_lookup, cred, dvp, &dvp->v_label, cnp); 1820100979Srwatson return (error); 1821100979Srwatson} 1822100979Srwatson 1823100979Srwatsonvm_prot_t 1824100979Srwatsonmac_check_vnode_mmap_prot(struct ucred *cred, struct vnode *vp, int newmapping) 1825100979Srwatson{ 1826100979Srwatson vm_prot_t result = VM_PROT_ALL; 1827100979Srwatson 1828103514Srwatson if (!mac_enforce_vm) 1829103514Srwatson return (result); 1830103514Srwatson 1831100979Srwatson /* 1832100979Srwatson * This should be some sort of MAC_BITWISE, maybe :) 1833100979Srwatson */ 1834100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_mmap_perms"); 1835100979Srwatson MAC_BOOLEAN(check_vnode_mmap_perms, &, cred, vp, &vp->v_label, 1836100979Srwatson newmapping); 1837100979Srwatson return (result); 1838100979Srwatson} 1839100979Srwatson 1840100979Srwatsonint 1841102112Srwatsonmac_check_vnode_open(struct ucred *cred, struct vnode *vp, mode_t acc_mode) 1842100979Srwatson{ 1843100979Srwatson int error; 1844100979Srwatson 1845102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_open"); 1846102112Srwatson 1847100979Srwatson if (!mac_enforce_fs) 1848100979Srwatson return (0); 1849100979Srwatson 1850102112Srwatson error = vn_refreshlabel(vp, cred); 1851102112Srwatson if (error) 1852102112Srwatson return (error); 1853100979Srwatson 1854102112Srwatson MAC_CHECK(check_vnode_open, cred, vp, &vp->v_label, acc_mode); 1855102112Srwatson return (error); 1856102112Srwatson} 1857102112Srwatson 1858102112Srwatsonint 1859102129Srwatsonmac_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 1860102129Srwatson struct vnode *vp) 1861102112Srwatson{ 1862102112Srwatson int error; 1863102112Srwatson 1864102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_poll"); 1865102112Srwatson 1866102112Srwatson if (!mac_enforce_fs) 1867102112Srwatson return (0); 1868102112Srwatson 1869102129Srwatson error = vn_refreshlabel(vp, active_cred); 1870100979Srwatson if (error) 1871100979Srwatson return (error); 1872100979Srwatson 1873102129Srwatson MAC_CHECK(check_vnode_poll, active_cred, file_cred, vp, 1874102129Srwatson &vp->v_label); 1875100979Srwatson 1876100979Srwatson return (error); 1877100979Srwatson} 1878100979Srwatson 1879100979Srwatsonint 1880102129Srwatsonmac_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 1881102129Srwatson struct vnode *vp) 1882100979Srwatson{ 1883100979Srwatson int error; 1884100979Srwatson 1885102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_read"); 1886100979Srwatson 1887100979Srwatson if (!mac_enforce_fs) 1888100979Srwatson return (0); 1889100979Srwatson 1890102129Srwatson error = vn_refreshlabel(vp, active_cred); 1891100979Srwatson if (error) 1892100979Srwatson return (error); 1893100979Srwatson 1894102129Srwatson MAC_CHECK(check_vnode_read, active_cred, file_cred, vp, 1895102129Srwatson &vp->v_label); 1896102112Srwatson 1897100979Srwatson return (error); 1898100979Srwatson} 1899100979Srwatson 1900100979Srwatsonint 1901100979Srwatsonmac_check_vnode_readdir(struct ucred *cred, struct vnode *dvp) 1902100979Srwatson{ 1903100979Srwatson int error; 1904100979Srwatson 1905100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_readdir"); 1906100979Srwatson 1907100979Srwatson if (!mac_enforce_fs) 1908100979Srwatson return (0); 1909100979Srwatson 1910100979Srwatson error = vn_refreshlabel(dvp, cred); 1911100979Srwatson if (error) 1912100979Srwatson return (error); 1913100979Srwatson 1914100979Srwatson MAC_CHECK(check_vnode_readdir, cred, dvp, &dvp->v_label); 1915100979Srwatson return (error); 1916100979Srwatson} 1917100979Srwatson 1918100979Srwatsonint 1919100979Srwatsonmac_check_vnode_readlink(struct ucred *cred, struct vnode *vp) 1920100979Srwatson{ 1921100979Srwatson int error; 1922100979Srwatson 1923100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_readlink"); 1924100979Srwatson 1925100979Srwatson if (!mac_enforce_fs) 1926100979Srwatson return (0); 1927100979Srwatson 1928100979Srwatson error = vn_refreshlabel(vp, cred); 1929100979Srwatson if (error) 1930100979Srwatson return (error); 1931100979Srwatson 1932100979Srwatson MAC_CHECK(check_vnode_readlink, cred, vp, &vp->v_label); 1933100979Srwatson return (error); 1934100979Srwatson} 1935100979Srwatson 1936100979Srwatsonstatic int 1937100979Srwatsonmac_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 1938100979Srwatson struct label *newlabel) 1939100979Srwatson{ 1940100979Srwatson int error; 1941100979Srwatson 1942100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_relabel"); 1943100979Srwatson 1944100979Srwatson error = vn_refreshlabel(vp, cred); 1945100979Srwatson if (error) 1946100979Srwatson return (error); 1947100979Srwatson 1948100979Srwatson MAC_CHECK(check_vnode_relabel, cred, vp, &vp->v_label, newlabel); 1949100979Srwatson 1950100979Srwatson return (error); 1951100979Srwatson} 1952100979Srwatson 1953100979Srwatsonint 1954100979Srwatsonmac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 1955100979Srwatson struct vnode *vp, struct componentname *cnp) 1956100979Srwatson{ 1957100979Srwatson int error; 1958100979Srwatson 1959100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_from"); 1960100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_from"); 1961100979Srwatson 1962100979Srwatson if (!mac_enforce_fs) 1963100979Srwatson return (0); 1964100979Srwatson 1965100979Srwatson error = vn_refreshlabel(dvp, cred); 1966100979Srwatson if (error) 1967100979Srwatson return (error); 1968100979Srwatson error = vn_refreshlabel(vp, cred); 1969100979Srwatson if (error) 1970100979Srwatson return (error); 1971100979Srwatson 1972100979Srwatson MAC_CHECK(check_vnode_rename_from, cred, dvp, &dvp->v_label, vp, 1973100979Srwatson &vp->v_label, cnp); 1974100979Srwatson return (error); 1975100979Srwatson} 1976100979Srwatson 1977100979Srwatsonint 1978100979Srwatsonmac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 1979100979Srwatson struct vnode *vp, int samedir, struct componentname *cnp) 1980100979Srwatson{ 1981100979Srwatson int error; 1982100979Srwatson 1983100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_to"); 1984100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_to"); 1985100979Srwatson 1986100979Srwatson if (!mac_enforce_fs) 1987100979Srwatson return (0); 1988100979Srwatson 1989100979Srwatson error = vn_refreshlabel(dvp, cred); 1990100979Srwatson if (error) 1991100979Srwatson return (error); 1992100979Srwatson if (vp != NULL) { 1993100979Srwatson error = vn_refreshlabel(vp, cred); 1994100979Srwatson if (error) 1995100979Srwatson return (error); 1996100979Srwatson } 1997100979Srwatson MAC_CHECK(check_vnode_rename_to, cred, dvp, &dvp->v_label, vp, 1998100979Srwatson vp != NULL ? &vp->v_label : NULL, samedir, cnp); 1999100979Srwatson return (error); 2000100979Srwatson} 2001100979Srwatson 2002100979Srwatsonint 2003100979Srwatsonmac_check_vnode_revoke(struct ucred *cred, struct vnode *vp) 2004100979Srwatson{ 2005100979Srwatson int error; 2006100979Srwatson 2007100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_revoke"); 2008100979Srwatson 2009100979Srwatson if (!mac_enforce_fs) 2010100979Srwatson return (0); 2011100979Srwatson 2012100979Srwatson error = vn_refreshlabel(vp, cred); 2013100979Srwatson if (error) 2014100979Srwatson return (error); 2015100979Srwatson 2016100979Srwatson MAC_CHECK(check_vnode_revoke, cred, vp, &vp->v_label); 2017100979Srwatson return (error); 2018100979Srwatson} 2019100979Srwatson 2020100979Srwatsonint 2021100979Srwatsonmac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, acl_type_t type, 2022100979Srwatson struct acl *acl) 2023100979Srwatson{ 2024100979Srwatson int error; 2025100979Srwatson 2026100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setacl"); 2027100979Srwatson 2028100979Srwatson if (!mac_enforce_fs) 2029100979Srwatson return (0); 2030100979Srwatson 2031100979Srwatson error = vn_refreshlabel(vp, cred); 2032100979Srwatson if (error) 2033100979Srwatson return (error); 2034100979Srwatson 2035100979Srwatson MAC_CHECK(check_vnode_setacl, cred, vp, &vp->v_label, type, acl); 2036100979Srwatson return (error); 2037100979Srwatson} 2038100979Srwatson 2039100979Srwatsonint 2040100979Srwatsonmac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 2041100979Srwatson int attrnamespace, const char *name, struct uio *uio) 2042100979Srwatson{ 2043100979Srwatson int error; 2044100979Srwatson 2045100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setextattr"); 2046100979Srwatson 2047100979Srwatson if (!mac_enforce_fs) 2048100979Srwatson return (0); 2049100979Srwatson 2050100979Srwatson error = vn_refreshlabel(vp, cred); 2051100979Srwatson if (error) 2052100979Srwatson return (error); 2053100979Srwatson 2054100979Srwatson MAC_CHECK(check_vnode_setextattr, cred, vp, &vp->v_label, 2055100979Srwatson attrnamespace, name, uio); 2056100979Srwatson return (error); 2057100979Srwatson} 2058100979Srwatson 2059100979Srwatsonint 2060100979Srwatsonmac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, u_long flags) 2061100979Srwatson{ 2062100979Srwatson int error; 2063100979Srwatson 2064100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setflags"); 2065100979Srwatson 2066100979Srwatson if (!mac_enforce_fs) 2067100979Srwatson return (0); 2068100979Srwatson 2069100979Srwatson error = vn_refreshlabel(vp, cred); 2070100979Srwatson if (error) 2071100979Srwatson return (error); 2072100979Srwatson 2073100979Srwatson MAC_CHECK(check_vnode_setflags, cred, vp, &vp->v_label, flags); 2074100979Srwatson return (error); 2075100979Srwatson} 2076100979Srwatson 2077100979Srwatsonint 2078100979Srwatsonmac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, mode_t mode) 2079100979Srwatson{ 2080100979Srwatson int error; 2081100979Srwatson 2082100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setmode"); 2083100979Srwatson 2084100979Srwatson if (!mac_enforce_fs) 2085100979Srwatson return (0); 2086100979Srwatson 2087100979Srwatson error = vn_refreshlabel(vp, cred); 2088100979Srwatson if (error) 2089100979Srwatson return (error); 2090100979Srwatson 2091100979Srwatson MAC_CHECK(check_vnode_setmode, cred, vp, &vp->v_label, mode); 2092100979Srwatson return (error); 2093100979Srwatson} 2094100979Srwatson 2095100979Srwatsonint 2096100979Srwatsonmac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, uid_t uid, 2097100979Srwatson gid_t gid) 2098100979Srwatson{ 2099100979Srwatson int error; 2100100979Srwatson 2101100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setowner"); 2102100979Srwatson 2103100979Srwatson if (!mac_enforce_fs) 2104100979Srwatson return (0); 2105100979Srwatson 2106100979Srwatson error = vn_refreshlabel(vp, cred); 2107100979Srwatson if (error) 2108100979Srwatson return (error); 2109100979Srwatson 2110100979Srwatson MAC_CHECK(check_vnode_setowner, cred, vp, &vp->v_label, uid, gid); 2111100979Srwatson return (error); 2112100979Srwatson} 2113100979Srwatson 2114100979Srwatsonint 2115100979Srwatsonmac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 2116100979Srwatson struct timespec atime, struct timespec mtime) 2117100979Srwatson{ 2118100979Srwatson int error; 2119100979Srwatson 2120100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setutimes"); 2121100979Srwatson 2122100979Srwatson if (!mac_enforce_fs) 2123100979Srwatson return (0); 2124100979Srwatson 2125100979Srwatson error = vn_refreshlabel(vp, cred); 2126100979Srwatson if (error) 2127100979Srwatson return (error); 2128100979Srwatson 2129100979Srwatson MAC_CHECK(check_vnode_setutimes, cred, vp, &vp->v_label, atime, 2130100979Srwatson mtime); 2131100979Srwatson return (error); 2132100979Srwatson} 2133100979Srwatson 2134100979Srwatsonint 2135102129Srwatsonmac_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 2136102129Srwatson struct vnode *vp) 2137100979Srwatson{ 2138100979Srwatson int error; 2139100979Srwatson 2140100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_stat"); 2141100979Srwatson 2142100979Srwatson if (!mac_enforce_fs) 2143100979Srwatson return (0); 2144100979Srwatson 2145102129Srwatson error = vn_refreshlabel(vp, active_cred); 2146100979Srwatson if (error) 2147100979Srwatson return (error); 2148100979Srwatson 2149102129Srwatson MAC_CHECK(check_vnode_stat, active_cred, file_cred, vp, 2150102129Srwatson &vp->v_label); 2151100979Srwatson return (error); 2152100979Srwatson} 2153100979Srwatson 2154102112Srwatsonint 2155102129Srwatsonmac_check_vnode_write(struct ucred *active_cred, struct ucred *file_cred, 2156102129Srwatson struct vnode *vp) 2157102112Srwatson{ 2158102112Srwatson int error; 2159102112Srwatson 2160102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_write"); 2161102112Srwatson 2162102112Srwatson if (!mac_enforce_fs) 2163102112Srwatson return (0); 2164102112Srwatson 2165102129Srwatson error = vn_refreshlabel(vp, active_cred); 2166102112Srwatson if (error) 2167102112Srwatson return (error); 2168102112Srwatson 2169102129Srwatson MAC_CHECK(check_vnode_write, active_cred, file_cred, vp, 2170102129Srwatson &vp->v_label); 2171102112Srwatson 2172102112Srwatson return (error); 2173102112Srwatson} 2174102112Srwatson 2175100979Srwatson/* 2176100979Srwatson * When relabeling a process, call out to the policies for the maximum 2177100979Srwatson * permission allowed for each object type we know about in its 2178100979Srwatson * memory space, and revoke access (in the least surprising ways we 2179100979Srwatson * know) when necessary. The process lock is not held here. 2180100979Srwatson */ 2181100979Srwatsonstatic void 2182100979Srwatsonmac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred) 2183100979Srwatson{ 2184100979Srwatson 2185100979Srwatson /* XXX freeze all other threads */ 2186100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2187100979Srwatson &td->td_proc->p_vmspace->vm_map); 2188100979Srwatson /* XXX allow other threads to continue */ 2189100979Srwatson} 2190100979Srwatson 2191100979Srwatsonstatic __inline const char * 2192100979Srwatsonprot2str(vm_prot_t prot) 2193100979Srwatson{ 2194100979Srwatson 2195100979Srwatson switch (prot & VM_PROT_ALL) { 2196100979Srwatson case VM_PROT_READ: 2197100979Srwatson return ("r--"); 2198100979Srwatson case VM_PROT_READ | VM_PROT_WRITE: 2199100979Srwatson return ("rw-"); 2200100979Srwatson case VM_PROT_READ | VM_PROT_EXECUTE: 2201100979Srwatson return ("r-x"); 2202100979Srwatson case VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE: 2203100979Srwatson return ("rwx"); 2204100979Srwatson case VM_PROT_WRITE: 2205100979Srwatson return ("-w-"); 2206100979Srwatson case VM_PROT_EXECUTE: 2207100979Srwatson return ("--x"); 2208100979Srwatson case VM_PROT_WRITE | VM_PROT_EXECUTE: 2209100979Srwatson return ("-wx"); 2210100979Srwatson default: 2211100979Srwatson return ("---"); 2212100979Srwatson } 2213100979Srwatson} 2214100979Srwatson 2215100979Srwatsonstatic void 2216100979Srwatsonmac_cred_mmapped_drop_perms_recurse(struct thread *td, struct ucred *cred, 2217100979Srwatson struct vm_map *map) 2218100979Srwatson{ 2219100979Srwatson struct vm_map_entry *vme; 2220100979Srwatson vm_prot_t result, revokeperms; 2221100979Srwatson vm_object_t object; 2222100979Srwatson vm_ooffset_t offset; 2223100979Srwatson struct vnode *vp; 2224100979Srwatson 2225103136Srwatson if (!mac_mmap_revocation) 2226103136Srwatson return; 2227103136Srwatson 2228100979Srwatson vm_map_lock_read(map); 2229100979Srwatson for (vme = map->header.next; vme != &map->header; vme = vme->next) { 2230100979Srwatson if (vme->eflags & MAP_ENTRY_IS_SUB_MAP) { 2231100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2232100979Srwatson vme->object.sub_map); 2233100979Srwatson continue; 2234100979Srwatson } 2235100979Srwatson /* 2236100979Srwatson * Skip over entries that obviously are not shared. 2237100979Srwatson */ 2238100979Srwatson if (vme->eflags & (MAP_ENTRY_COW | MAP_ENTRY_NOSYNC) || 2239100979Srwatson !vme->max_protection) 2240100979Srwatson continue; 2241100979Srwatson /* 2242100979Srwatson * Drill down to the deepest backing object. 2243100979Srwatson */ 2244100979Srwatson offset = vme->offset; 2245100979Srwatson object = vme->object.vm_object; 2246100979Srwatson if (object == NULL) 2247100979Srwatson continue; 2248100979Srwatson while (object->backing_object != NULL) { 2249100979Srwatson object = object->backing_object; 2250100979Srwatson offset += object->backing_object_offset; 2251100979Srwatson } 2252100979Srwatson /* 2253100979Srwatson * At the moment, vm_maps and objects aren't considered 2254100979Srwatson * by the MAC system, so only things with backing by a 2255100979Srwatson * normal object (read: vnodes) are checked. 2256100979Srwatson */ 2257100979Srwatson if (object->type != OBJT_VNODE) 2258100979Srwatson continue; 2259100979Srwatson vp = (struct vnode *)object->handle; 2260100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2261100979Srwatson result = mac_check_vnode_mmap_prot(cred, vp, 0); 2262100979Srwatson VOP_UNLOCK(vp, 0, td); 2263100979Srwatson /* 2264100979Srwatson * Find out what maximum protection we may be allowing 2265100979Srwatson * now but a policy needs to get removed. 2266100979Srwatson */ 2267100979Srwatson revokeperms = vme->max_protection & ~result; 2268100979Srwatson if (!revokeperms) 2269100979Srwatson continue; 2270102949Sbde printf("pid %ld: revoking %s perms from %#lx:%ld " 2271102949Sbde "(max %s/cur %s)\n", (long)td->td_proc->p_pid, 2272102949Sbde prot2str(revokeperms), (u_long)vme->start, 2273102949Sbde (long)(vme->end - vme->start), 2274100979Srwatson prot2str(vme->max_protection), prot2str(vme->protection)); 2275100979Srwatson vm_map_lock_upgrade(map); 2276100979Srwatson /* 2277100979Srwatson * This is the really simple case: if a map has more 2278100979Srwatson * max_protection than is allowed, but it's not being 2279100979Srwatson * actually used (that is, the current protection is 2280100979Srwatson * still allowed), we can just wipe it out and do 2281100979Srwatson * nothing more. 2282100979Srwatson */ 2283100979Srwatson if ((vme->protection & revokeperms) == 0) { 2284100979Srwatson vme->max_protection -= revokeperms; 2285100979Srwatson } else { 2286100979Srwatson if (revokeperms & VM_PROT_WRITE) { 2287100979Srwatson /* 2288100979Srwatson * In the more complicated case, flush out all 2289100979Srwatson * pending changes to the object then turn it 2290100979Srwatson * copy-on-write. 2291100979Srwatson */ 2292100979Srwatson vm_object_reference(object); 2293100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2294100979Srwatson vm_object_page_clean(object, 2295100979Srwatson OFF_TO_IDX(offset), 2296100979Srwatson OFF_TO_IDX(offset + vme->end - vme->start + 2297100979Srwatson PAGE_MASK), 2298100979Srwatson OBJPC_SYNC); 2299100979Srwatson VOP_UNLOCK(vp, 0, td); 2300100979Srwatson vm_object_deallocate(object); 2301100979Srwatson /* 2302100979Srwatson * Why bother if there's no read permissions 2303100979Srwatson * anymore? For the rest, we need to leave 2304100979Srwatson * the write permissions on for COW, or 2305100979Srwatson * remove them entirely if configured to. 2306100979Srwatson */ 2307100979Srwatson if (!mac_mmap_revocation_via_cow) { 2308100979Srwatson vme->max_protection &= ~VM_PROT_WRITE; 2309100979Srwatson vme->protection &= ~VM_PROT_WRITE; 2310100979Srwatson } if ((revokeperms & VM_PROT_READ) == 0) 2311100979Srwatson vme->eflags |= MAP_ENTRY_COW | 2312100979Srwatson MAP_ENTRY_NEEDS_COPY; 2313100979Srwatson } 2314100979Srwatson if (revokeperms & VM_PROT_EXECUTE) { 2315100979Srwatson vme->max_protection &= ~VM_PROT_EXECUTE; 2316100979Srwatson vme->protection &= ~VM_PROT_EXECUTE; 2317100979Srwatson } 2318100979Srwatson if (revokeperms & VM_PROT_READ) { 2319100979Srwatson vme->max_protection = 0; 2320100979Srwatson vme->protection = 0; 2321100979Srwatson } 2322100979Srwatson pmap_protect(map->pmap, vme->start, vme->end, 2323100979Srwatson vme->protection & ~revokeperms); 2324100979Srwatson vm_map_simplify_entry(map, vme); 2325100979Srwatson } 2326100979Srwatson vm_map_lock_downgrade(map); 2327100979Srwatson } 2328100979Srwatson vm_map_unlock_read(map); 2329100979Srwatson} 2330100979Srwatson 2331100979Srwatson/* 2332100979Srwatson * When the subject's label changes, it may require revocation of privilege 2333100979Srwatson * to mapped objects. This can't be done on-the-fly later with a unified 2334100979Srwatson * buffer cache. 2335100979Srwatson */ 2336100979Srwatsonstatic void 2337100979Srwatsonmac_relabel_cred(struct ucred *cred, struct label *newlabel) 2338100979Srwatson{ 2339100979Srwatson 2340100979Srwatson MAC_PERFORM(relabel_cred, cred, newlabel); 2341100979Srwatson} 2342100979Srwatson 2343100979Srwatsonvoid 2344100979Srwatsonmac_relabel_vnode(struct ucred *cred, struct vnode *vp, struct label *newlabel) 2345100979Srwatson{ 2346100979Srwatson 2347100979Srwatson MAC_PERFORM(relabel_vnode, cred, vp, &vp->v_label, newlabel); 2348100979Srwatson} 2349100979Srwatson 2350100979Srwatsonvoid 2351100979Srwatsonmac_create_ifnet(struct ifnet *ifnet) 2352100979Srwatson{ 2353100979Srwatson 2354100979Srwatson MAC_PERFORM(create_ifnet, ifnet, &ifnet->if_label); 2355100979Srwatson} 2356100979Srwatson 2357100979Srwatsonvoid 2358100979Srwatsonmac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d) 2359100979Srwatson{ 2360100979Srwatson 2361100979Srwatson MAC_PERFORM(create_bpfdesc, cred, bpf_d, &bpf_d->bd_label); 2362100979Srwatson} 2363100979Srwatson 2364100979Srwatsonvoid 2365100979Srwatsonmac_create_socket(struct ucred *cred, struct socket *socket) 2366100979Srwatson{ 2367100979Srwatson 2368100979Srwatson MAC_PERFORM(create_socket, cred, socket, &socket->so_label); 2369100979Srwatson} 2370100979Srwatson 2371100979Srwatsonvoid 2372100979Srwatsonmac_create_pipe(struct ucred *cred, struct pipe *pipe) 2373100979Srwatson{ 2374100979Srwatson 2375100979Srwatson MAC_PERFORM(create_pipe, cred, pipe, pipe->pipe_label); 2376100979Srwatson} 2377100979Srwatson 2378100979Srwatsonvoid 2379100979Srwatsonmac_create_socket_from_socket(struct socket *oldsocket, 2380100979Srwatson struct socket *newsocket) 2381100979Srwatson{ 2382100979Srwatson 2383100979Srwatson MAC_PERFORM(create_socket_from_socket, oldsocket, &oldsocket->so_label, 2384100979Srwatson newsocket, &newsocket->so_label); 2385100979Srwatson} 2386100979Srwatson 2387100979Srwatsonstatic void 2388100979Srwatsonmac_relabel_socket(struct ucred *cred, struct socket *socket, 2389100979Srwatson struct label *newlabel) 2390100979Srwatson{ 2391100979Srwatson 2392100979Srwatson MAC_PERFORM(relabel_socket, cred, socket, &socket->so_label, newlabel); 2393100979Srwatson} 2394100979Srwatson 2395100979Srwatsonstatic void 2396100979Srwatsonmac_relabel_pipe(struct ucred *cred, struct pipe *pipe, struct label *newlabel) 2397100979Srwatson{ 2398100979Srwatson 2399100979Srwatson MAC_PERFORM(relabel_pipe, cred, pipe, pipe->pipe_label, newlabel); 2400100979Srwatson} 2401100979Srwatson 2402100979Srwatsonvoid 2403100979Srwatsonmac_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct socket *socket) 2404100979Srwatson{ 2405100979Srwatson 2406100979Srwatson MAC_PERFORM(set_socket_peer_from_mbuf, mbuf, &mbuf->m_pkthdr.label, 2407100979Srwatson socket, &socket->so_peerlabel); 2408100979Srwatson} 2409100979Srwatson 2410100979Srwatsonvoid 2411100979Srwatsonmac_set_socket_peer_from_socket(struct socket *oldsocket, 2412100979Srwatson struct socket *newsocket) 2413100979Srwatson{ 2414100979Srwatson 2415100979Srwatson MAC_PERFORM(set_socket_peer_from_socket, oldsocket, 2416100979Srwatson &oldsocket->so_label, newsocket, &newsocket->so_peerlabel); 2417100979Srwatson} 2418100979Srwatson 2419100979Srwatsonvoid 2420100979Srwatsonmac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram) 2421100979Srwatson{ 2422100979Srwatson 2423100979Srwatson MAC_PERFORM(create_datagram_from_ipq, ipq, &ipq->ipq_label, 2424100979Srwatson datagram, &datagram->m_pkthdr.label); 2425100979Srwatson} 2426100979Srwatson 2427100979Srwatsonvoid 2428100979Srwatsonmac_create_fragment(struct mbuf *datagram, struct mbuf *fragment) 2429100979Srwatson{ 2430100979Srwatson 2431100979Srwatson MAC_PERFORM(create_fragment, datagram, &datagram->m_pkthdr.label, 2432100979Srwatson fragment, &fragment->m_pkthdr.label); 2433100979Srwatson} 2434100979Srwatson 2435100979Srwatsonvoid 2436100979Srwatsonmac_create_ipq(struct mbuf *fragment, struct ipq *ipq) 2437100979Srwatson{ 2438100979Srwatson 2439100979Srwatson MAC_PERFORM(create_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2440100979Srwatson &ipq->ipq_label); 2441100979Srwatson} 2442100979Srwatson 2443100979Srwatsonvoid 2444100979Srwatsonmac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2445100979Srwatson{ 2446100979Srwatson 2447100979Srwatson MAC_PERFORM(create_mbuf_from_mbuf, oldmbuf, &oldmbuf->m_pkthdr.label, 2448100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2449100979Srwatson} 2450100979Srwatson 2451100979Srwatsonvoid 2452100979Srwatsonmac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *mbuf) 2453100979Srwatson{ 2454100979Srwatson 2455100979Srwatson MAC_PERFORM(create_mbuf_from_bpfdesc, bpf_d, &bpf_d->bd_label, mbuf, 2456100979Srwatson &mbuf->m_pkthdr.label); 2457100979Srwatson} 2458100979Srwatson 2459100979Srwatsonvoid 2460100979Srwatsonmac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *mbuf) 2461100979Srwatson{ 2462100979Srwatson 2463100979Srwatson MAC_PERFORM(create_mbuf_linklayer, ifnet, &ifnet->if_label, mbuf, 2464100979Srwatson &mbuf->m_pkthdr.label); 2465100979Srwatson} 2466100979Srwatson 2467100979Srwatsonvoid 2468100979Srwatsonmac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *mbuf) 2469100979Srwatson{ 2470100979Srwatson 2471100979Srwatson MAC_PERFORM(create_mbuf_from_ifnet, ifnet, &ifnet->if_label, mbuf, 2472100979Srwatson &mbuf->m_pkthdr.label); 2473100979Srwatson} 2474100979Srwatson 2475100979Srwatsonvoid 2476100979Srwatsonmac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, struct ifnet *ifnet, 2477100979Srwatson struct mbuf *newmbuf) 2478100979Srwatson{ 2479100979Srwatson 2480100979Srwatson MAC_PERFORM(create_mbuf_multicast_encap, oldmbuf, 2481100979Srwatson &oldmbuf->m_pkthdr.label, ifnet, &ifnet->if_label, newmbuf, 2482100979Srwatson &newmbuf->m_pkthdr.label); 2483100979Srwatson} 2484100979Srwatson 2485100979Srwatsonvoid 2486100979Srwatsonmac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2487100979Srwatson{ 2488100979Srwatson 2489100979Srwatson MAC_PERFORM(create_mbuf_netlayer, oldmbuf, &oldmbuf->m_pkthdr.label, 2490100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2491100979Srwatson} 2492100979Srwatson 2493100979Srwatsonint 2494100979Srwatsonmac_fragment_match(struct mbuf *fragment, struct ipq *ipq) 2495100979Srwatson{ 2496100979Srwatson int result; 2497100979Srwatson 2498100979Srwatson result = 1; 2499100979Srwatson MAC_BOOLEAN(fragment_match, &&, fragment, &fragment->m_pkthdr.label, 2500100979Srwatson ipq, &ipq->ipq_label); 2501100979Srwatson 2502100979Srwatson return (result); 2503100979Srwatson} 2504100979Srwatson 2505100979Srwatsonvoid 2506100979Srwatsonmac_update_ipq(struct mbuf *fragment, struct ipq *ipq) 2507100979Srwatson{ 2508100979Srwatson 2509100979Srwatson MAC_PERFORM(update_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2510100979Srwatson &ipq->ipq_label); 2511100979Srwatson} 2512100979Srwatson 2513100979Srwatsonvoid 2514100979Srwatsonmac_create_mbuf_from_socket(struct socket *socket, struct mbuf *mbuf) 2515100979Srwatson{ 2516100979Srwatson 2517100979Srwatson MAC_PERFORM(create_mbuf_from_socket, socket, &socket->so_label, mbuf, 2518100979Srwatson &mbuf->m_pkthdr.label); 2519100979Srwatson} 2520100979Srwatson 2521100979Srwatsonvoid 2522100979Srwatsonmac_create_mount(struct ucred *cred, struct mount *mp) 2523100979Srwatson{ 2524100979Srwatson 2525100979Srwatson MAC_PERFORM(create_mount, cred, mp, &mp->mnt_mntlabel, 2526100979Srwatson &mp->mnt_fslabel); 2527100979Srwatson} 2528100979Srwatson 2529100979Srwatsonvoid 2530100979Srwatsonmac_create_root_mount(struct ucred *cred, struct mount *mp) 2531100979Srwatson{ 2532100979Srwatson 2533100979Srwatson MAC_PERFORM(create_root_mount, cred, mp, &mp->mnt_mntlabel, 2534100979Srwatson &mp->mnt_fslabel); 2535100979Srwatson} 2536100979Srwatson 2537100979Srwatsonint 2538100979Srwatsonmac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet) 2539100979Srwatson{ 2540100979Srwatson int error; 2541100979Srwatson 2542100979Srwatson if (!mac_enforce_network) 2543100979Srwatson return (0); 2544100979Srwatson 2545100979Srwatson MAC_CHECK(check_bpfdesc_receive, bpf_d, &bpf_d->bd_label, ifnet, 2546100979Srwatson &ifnet->if_label); 2547100979Srwatson 2548100979Srwatson return (error); 2549100979Srwatson} 2550100979Srwatson 2551100979Srwatsonstatic int 2552100979Srwatsonmac_check_cred_relabel(struct ucred *cred, struct label *newlabel) 2553100979Srwatson{ 2554100979Srwatson int error; 2555100979Srwatson 2556100979Srwatson MAC_CHECK(check_cred_relabel, cred, newlabel); 2557100979Srwatson 2558100979Srwatson return (error); 2559100979Srwatson} 2560100979Srwatson 2561100979Srwatsonint 2562100979Srwatsonmac_check_cred_visible(struct ucred *u1, struct ucred *u2) 2563100979Srwatson{ 2564100979Srwatson int error; 2565100979Srwatson 2566100979Srwatson if (!mac_enforce_process) 2567100979Srwatson return (0); 2568100979Srwatson 2569100979Srwatson MAC_CHECK(check_cred_visible, u1, u2); 2570100979Srwatson 2571100979Srwatson return (error); 2572100979Srwatson} 2573100979Srwatson 2574100979Srwatsonint 2575100979Srwatsonmac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *mbuf) 2576100979Srwatson{ 2577100979Srwatson int error; 2578100979Srwatson 2579100979Srwatson if (!mac_enforce_network) 2580100979Srwatson return (0); 2581100979Srwatson 2582100979Srwatson KASSERT(mbuf->m_flags & M_PKTHDR, ("packet has no pkthdr")); 2583100979Srwatson if (!(mbuf->m_pkthdr.label.l_flags & MAC_FLAG_INITIALIZED)) 2584100979Srwatson printf("%s%d: not initialized\n", ifnet->if_name, 2585100979Srwatson ifnet->if_unit); 2586100979Srwatson 2587100979Srwatson MAC_CHECK(check_ifnet_transmit, ifnet, &ifnet->if_label, mbuf, 2588100979Srwatson &mbuf->m_pkthdr.label); 2589100979Srwatson 2590100979Srwatson return (error); 2591100979Srwatson} 2592100979Srwatson 2593100979Srwatsonint 2594100979Srwatsonmac_check_mount_stat(struct ucred *cred, struct mount *mount) 2595100979Srwatson{ 2596100979Srwatson int error; 2597100979Srwatson 2598100979Srwatson if (!mac_enforce_fs) 2599100979Srwatson return (0); 2600100979Srwatson 2601100979Srwatson MAC_CHECK(check_mount_stat, cred, mount, &mount->mnt_mntlabel); 2602100979Srwatson 2603100979Srwatson return (error); 2604100979Srwatson} 2605100979Srwatson 2606100979Srwatsonint 2607100979Srwatsonmac_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe, unsigned long cmd, 2608100979Srwatson void *data) 2609100979Srwatson{ 2610100979Srwatson int error; 2611100979Srwatson 2612104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2613104269Srwatson 2614104269Srwatson if (!mac_enforce_pipe) 2615104269Srwatson return (0); 2616104269Srwatson 2617100979Srwatson MAC_CHECK(check_pipe_ioctl, cred, pipe, pipe->pipe_label, cmd, data); 2618100979Srwatson 2619100979Srwatson return (error); 2620100979Srwatson} 2621100979Srwatson 2622100979Srwatsonint 2623102115Srwatsonmac_check_pipe_poll(struct ucred *cred, struct pipe *pipe) 2624100979Srwatson{ 2625100979Srwatson int error; 2626100979Srwatson 2627104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2628104269Srwatson 2629104269Srwatson if (!mac_enforce_pipe) 2630104269Srwatson return (0); 2631104269Srwatson 2632102115Srwatson MAC_CHECK(check_pipe_poll, cred, pipe, pipe->pipe_label); 2633100979Srwatson 2634100979Srwatson return (error); 2635100979Srwatson} 2636100979Srwatson 2637102115Srwatsonint 2638102115Srwatsonmac_check_pipe_read(struct ucred *cred, struct pipe *pipe) 2639102115Srwatson{ 2640102115Srwatson int error; 2641102115Srwatson 2642104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2643104269Srwatson 2644104269Srwatson if (!mac_enforce_pipe) 2645104269Srwatson return (0); 2646104269Srwatson 2647102115Srwatson MAC_CHECK(check_pipe_read, cred, pipe, pipe->pipe_label); 2648102115Srwatson 2649102115Srwatson return (error); 2650102115Srwatson} 2651102115Srwatson 2652100979Srwatsonstatic int 2653100979Srwatsonmac_check_pipe_relabel(struct ucred *cred, struct pipe *pipe, 2654100979Srwatson struct label *newlabel) 2655100979Srwatson{ 2656100979Srwatson int error; 2657100979Srwatson 2658104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2659104269Srwatson 2660104269Srwatson if (!mac_enforce_pipe) 2661104269Srwatson return (0); 2662104269Srwatson 2663100979Srwatson MAC_CHECK(check_pipe_relabel, cred, pipe, pipe->pipe_label, newlabel); 2664100979Srwatson 2665100979Srwatson return (error); 2666100979Srwatson} 2667100979Srwatson 2668100979Srwatsonint 2669102115Srwatsonmac_check_pipe_stat(struct ucred *cred, struct pipe *pipe) 2670102115Srwatson{ 2671102115Srwatson int error; 2672102115Srwatson 2673104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2674104269Srwatson 2675104269Srwatson if (!mac_enforce_pipe) 2676104269Srwatson return (0); 2677104269Srwatson 2678102115Srwatson MAC_CHECK(check_pipe_stat, cred, pipe, pipe->pipe_label); 2679102115Srwatson 2680102115Srwatson return (error); 2681102115Srwatson} 2682102115Srwatson 2683102115Srwatsonint 2684102115Srwatsonmac_check_pipe_write(struct ucred *cred, struct pipe *pipe) 2685102115Srwatson{ 2686102115Srwatson int error; 2687102115Srwatson 2688104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2689104269Srwatson 2690104269Srwatson if (!mac_enforce_pipe) 2691104269Srwatson return (0); 2692104269Srwatson 2693102115Srwatson MAC_CHECK(check_pipe_write, cred, pipe, pipe->pipe_label); 2694102115Srwatson 2695102115Srwatson return (error); 2696102115Srwatson} 2697102115Srwatson 2698102115Srwatsonint 2699100979Srwatsonmac_check_proc_debug(struct ucred *cred, struct proc *proc) 2700100979Srwatson{ 2701100979Srwatson int error; 2702100979Srwatson 2703102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2704102103Srwatson 2705100979Srwatson if (!mac_enforce_process) 2706100979Srwatson return (0); 2707100979Srwatson 2708100979Srwatson MAC_CHECK(check_proc_debug, cred, proc); 2709100979Srwatson 2710100979Srwatson return (error); 2711100979Srwatson} 2712100979Srwatson 2713100979Srwatsonint 2714100979Srwatsonmac_check_proc_sched(struct ucred *cred, struct proc *proc) 2715100979Srwatson{ 2716100979Srwatson int error; 2717100979Srwatson 2718102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2719102103Srwatson 2720100979Srwatson if (!mac_enforce_process) 2721100979Srwatson return (0); 2722100979Srwatson 2723100979Srwatson MAC_CHECK(check_proc_sched, cred, proc); 2724100979Srwatson 2725100979Srwatson return (error); 2726100979Srwatson} 2727100979Srwatson 2728100979Srwatsonint 2729100979Srwatsonmac_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 2730100979Srwatson{ 2731100979Srwatson int error; 2732100979Srwatson 2733102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2734102103Srwatson 2735100979Srwatson if (!mac_enforce_process) 2736100979Srwatson return (0); 2737100979Srwatson 2738100979Srwatson MAC_CHECK(check_proc_signal, cred, proc, signum); 2739100979Srwatson 2740100979Srwatson return (error); 2741100979Srwatson} 2742100979Srwatson 2743100979Srwatsonint 2744100979Srwatsonmac_check_socket_bind(struct ucred *ucred, struct socket *socket, 2745100979Srwatson struct sockaddr *sockaddr) 2746100979Srwatson{ 2747100979Srwatson int error; 2748100979Srwatson 2749100979Srwatson if (!mac_enforce_socket) 2750100979Srwatson return (0); 2751100979Srwatson 2752100979Srwatson MAC_CHECK(check_socket_bind, ucred, socket, &socket->so_label, 2753100979Srwatson sockaddr); 2754100979Srwatson 2755100979Srwatson return (error); 2756100979Srwatson} 2757100979Srwatson 2758100979Srwatsonint 2759100979Srwatsonmac_check_socket_connect(struct ucred *cred, struct socket *socket, 2760100979Srwatson struct sockaddr *sockaddr) 2761100979Srwatson{ 2762100979Srwatson int error; 2763100979Srwatson 2764100979Srwatson if (!mac_enforce_socket) 2765100979Srwatson return (0); 2766100979Srwatson 2767100979Srwatson MAC_CHECK(check_socket_connect, cred, socket, &socket->so_label, 2768100979Srwatson sockaddr); 2769100979Srwatson 2770100979Srwatson return (error); 2771100979Srwatson} 2772100979Srwatson 2773100979Srwatsonint 2774101933Srwatsonmac_check_socket_deliver(struct socket *socket, struct mbuf *mbuf) 2775100979Srwatson{ 2776100979Srwatson int error; 2777100979Srwatson 2778100979Srwatson if (!mac_enforce_socket) 2779100979Srwatson return (0); 2780100979Srwatson 2781101933Srwatson MAC_CHECK(check_socket_deliver, socket, &socket->so_label, mbuf, 2782101933Srwatson &mbuf->m_pkthdr.label); 2783101933Srwatson 2784100979Srwatson return (error); 2785100979Srwatson} 2786100979Srwatson 2787100979Srwatsonint 2788101933Srwatsonmac_check_socket_listen(struct ucred *cred, struct socket *socket) 2789100979Srwatson{ 2790100979Srwatson int error; 2791100979Srwatson 2792100979Srwatson if (!mac_enforce_socket) 2793100979Srwatson return (0); 2794100979Srwatson 2795101933Srwatson MAC_CHECK(check_socket_listen, cred, socket, &socket->so_label); 2796100979Srwatson return (error); 2797100979Srwatson} 2798100979Srwatson 2799100979Srwatsonstatic int 2800100979Srwatsonmac_check_socket_relabel(struct ucred *cred, struct socket *socket, 2801100979Srwatson struct label *newlabel) 2802100979Srwatson{ 2803100979Srwatson int error; 2804100979Srwatson 2805100979Srwatson MAC_CHECK(check_socket_relabel, cred, socket, &socket->so_label, 2806100979Srwatson newlabel); 2807100979Srwatson 2808100979Srwatson return (error); 2809100979Srwatson} 2810100979Srwatson 2811100979Srwatsonint 2812100979Srwatsonmac_check_socket_visible(struct ucred *cred, struct socket *socket) 2813100979Srwatson{ 2814100979Srwatson int error; 2815100979Srwatson 2816100979Srwatson if (!mac_enforce_socket) 2817100979Srwatson return (0); 2818100979Srwatson 2819100979Srwatson MAC_CHECK(check_socket_visible, cred, socket, &socket->so_label); 2820100979Srwatson 2821100979Srwatson return (error); 2822100979Srwatson} 2823100979Srwatson 2824100979Srwatsonint 2825100979Srwatsonmac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, 2826100979Srwatson struct ifnet *ifnet) 2827100979Srwatson{ 2828100979Srwatson struct mac label; 2829100979Srwatson int error; 2830100979Srwatson 2831100979Srwatson error = mac_externalize(&ifnet->if_label, &label); 2832100979Srwatson if (error) 2833100979Srwatson return (error); 2834100979Srwatson 2835100979Srwatson return (copyout(&label, ifr->ifr_ifru.ifru_data, sizeof(label))); 2836100979Srwatson} 2837100979Srwatson 2838100979Srwatsonint 2839100979Srwatsonmac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, 2840100979Srwatson struct ifnet *ifnet) 2841100979Srwatson{ 2842100979Srwatson struct mac newlabel; 2843100979Srwatson struct label intlabel; 2844100979Srwatson int error; 2845100979Srwatson 2846100979Srwatson error = copyin(ifr->ifr_ifru.ifru_data, &newlabel, sizeof(newlabel)); 2847100979Srwatson if (error) 2848100979Srwatson return (error); 2849100979Srwatson 2850100979Srwatson error = mac_internalize(&intlabel, &newlabel); 2851100979Srwatson if (error) 2852100979Srwatson return (error); 2853100979Srwatson 2854100979Srwatson /* 2855100979Srwatson * XXX: Note that this is a redundant privilege check, since 2856100979Srwatson * policies impose this check themselves if required by the 2857100979Srwatson * policy. Eventually, this should go away. 2858100979Srwatson */ 2859100979Srwatson error = suser_cred(cred, 0); 2860100979Srwatson if (error) 2861100979Srwatson goto out; 2862100979Srwatson 2863100979Srwatson MAC_CHECK(check_ifnet_relabel, cred, ifnet, &ifnet->if_label, 2864100979Srwatson &intlabel); 2865100979Srwatson if (error) 2866100979Srwatson goto out; 2867100979Srwatson 2868100979Srwatson MAC_PERFORM(relabel_ifnet, cred, ifnet, &ifnet->if_label, &intlabel); 2869100979Srwatson 2870100979Srwatsonout: 2871100979Srwatson mac_destroy_temp(&intlabel); 2872100979Srwatson return (error); 2873100979Srwatson} 2874100979Srwatson 2875100979Srwatsonvoid 2876100979Srwatsonmac_create_devfs_vnode(struct devfs_dirent *de, struct vnode *vp) 2877100979Srwatson{ 2878100979Srwatson 2879100979Srwatson MAC_PERFORM(create_devfs_vnode, de, &de->de_label, vp, &vp->v_label); 2880100979Srwatson} 2881100979Srwatson 2882100979Srwatsonvoid 2883100979Srwatsonmac_create_devfs_device(dev_t dev, struct devfs_dirent *de) 2884100979Srwatson{ 2885100979Srwatson 2886100979Srwatson MAC_PERFORM(create_devfs_device, dev, de, &de->de_label); 2887100979Srwatson} 2888100979Srwatson 2889100979Srwatsonstatic int 2890100979Srwatsonmac_stdcreatevnode_ea(struct vnode *vp) 2891100979Srwatson{ 2892100979Srwatson int error; 2893100979Srwatson 2894100979Srwatson MAC_CHECK(stdcreatevnode_ea, vp, &vp->v_label); 2895100979Srwatson 2896100979Srwatson return (error); 2897100979Srwatson} 2898100979Srwatson 2899100979Srwatsonvoid 2900100979Srwatsonmac_create_devfs_directory(char *dirname, int dirnamelen, 2901100979Srwatson struct devfs_dirent *de) 2902100979Srwatson{ 2903100979Srwatson 2904100979Srwatson MAC_PERFORM(create_devfs_directory, dirname, dirnamelen, de, 2905100979Srwatson &de->de_label); 2906100979Srwatson} 2907100979Srwatson 2908100979Srwatson/* 2909100979Srwatson * When a new vnode is created, this call will initialize its label. 2910100979Srwatson */ 2911100979Srwatsonvoid 2912100979Srwatsonmac_create_vnode(struct ucred *cred, struct vnode *parent, 2913100979Srwatson struct vnode *child) 2914100979Srwatson{ 2915100979Srwatson int error; 2916100979Srwatson 2917100979Srwatson ASSERT_VOP_LOCKED(parent, "mac_create_vnode"); 2918100979Srwatson ASSERT_VOP_LOCKED(child, "mac_create_vnode"); 2919100979Srwatson 2920100979Srwatson error = vn_refreshlabel(parent, cred); 2921100979Srwatson if (error) { 2922100979Srwatson printf("mac_create_vnode: vn_refreshlabel returned %d\n", 2923100979Srwatson error); 2924100979Srwatson printf("mac_create_vnode: using old vnode label\n"); 2925100979Srwatson } 2926100979Srwatson 2927100979Srwatson MAC_PERFORM(create_vnode, cred, parent, &parent->v_label, child, 2928100979Srwatson &child->v_label); 2929100979Srwatson} 2930100979Srwatson 2931100979Srwatsonint 2932100979Srwatsonmac_setsockopt_label_set(struct ucred *cred, struct socket *so, 2933100979Srwatson struct mac *extmac) 2934100979Srwatson{ 2935100979Srwatson struct label intlabel; 2936100979Srwatson int error; 2937100979Srwatson 2938100979Srwatson error = mac_internalize(&intlabel, extmac); 2939100979Srwatson if (error) 2940100979Srwatson return (error); 2941100979Srwatson 2942100979Srwatson mac_check_socket_relabel(cred, so, &intlabel); 2943100979Srwatson if (error) { 2944100979Srwatson mac_destroy_temp(&intlabel); 2945100979Srwatson return (error); 2946100979Srwatson } 2947100979Srwatson 2948100979Srwatson mac_relabel_socket(cred, so, &intlabel); 2949100979Srwatson 2950100979Srwatson mac_destroy_temp(&intlabel); 2951100979Srwatson return (0); 2952100979Srwatson} 2953100979Srwatson 2954100979Srwatsonint 2955100979Srwatsonmac_pipe_label_set(struct ucred *cred, struct pipe *pipe, struct label *label) 2956100979Srwatson{ 2957100979Srwatson int error; 2958100979Srwatson 2959104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2960104269Srwatson 2961100979Srwatson error = mac_check_pipe_relabel(cred, pipe, label); 2962100979Srwatson if (error) 2963100979Srwatson return (error); 2964100979Srwatson 2965100979Srwatson mac_relabel_pipe(cred, pipe, label); 2966100979Srwatson 2967100979Srwatson return (0); 2968100979Srwatson} 2969100979Srwatson 2970100979Srwatsonint 2971100979Srwatsonmac_getsockopt_label_get(struct ucred *cred, struct socket *so, 2972100979Srwatson struct mac *extmac) 2973100979Srwatson{ 2974100979Srwatson 2975100979Srwatson return (mac_externalize(&so->so_label, extmac)); 2976100979Srwatson} 2977100979Srwatson 2978100979Srwatsonint 2979100979Srwatsonmac_getsockopt_peerlabel_get(struct ucred *cred, struct socket *so, 2980100979Srwatson struct mac *extmac) 2981100979Srwatson{ 2982100979Srwatson 2983100979Srwatson return (mac_externalize(&so->so_peerlabel, extmac)); 2984100979Srwatson} 2985100979Srwatson 2986100979Srwatson/* 2987100979Srwatson * Implementation of VOP_SETLABEL() that relies on extended attributes 2988100979Srwatson * to store label data. Can be referenced by filesystems supporting 2989100979Srwatson * extended attributes. 2990100979Srwatson */ 2991100979Srwatsonint 2992100979Srwatsonvop_stdsetlabel_ea(struct vop_setlabel_args *ap) 2993100979Srwatson{ 2994100979Srwatson struct vnode *vp = ap->a_vp; 2995100979Srwatson struct label *intlabel = ap->a_label; 2996100979Srwatson struct mac extmac; 2997100979Srwatson int error; 2998100979Srwatson 2999100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdsetlabel_ea"); 3000100979Srwatson 3001100979Srwatson /* 3002100979Srwatson * XXX: Eventually call out to EA check/set calls here. 3003100979Srwatson * Be particularly careful to avoid race conditions, 3004100979Srwatson * consistency problems, and stability problems when 3005100979Srwatson * dealing with multiple EAs. In particular, we require 3006100979Srwatson * the ability to write multiple EAs on the same file in 3007100979Srwatson * a single transaction, which the current EA interface 3008100979Srwatson * does not provide. 3009100979Srwatson */ 3010100979Srwatson 3011100979Srwatson error = mac_externalize(intlabel, &extmac); 3012100979Srwatson if (error) 3013100979Srwatson return (error); 3014100979Srwatson 3015100979Srwatson error = vn_extattr_set(vp, IO_NODELOCKED, 3016100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 3017100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 3018100979Srwatson if (error) 3019100979Srwatson return (error); 3020100979Srwatson 3021100979Srwatson mac_relabel_vnode(ap->a_cred, vp, intlabel); 3022100979Srwatson 3023101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 3024100979Srwatson 3025100979Srwatson return (0); 3026100979Srwatson} 3027100979Srwatson 3028100979Srwatsonstatic int 3029100979Srwatsonvn_setlabel(struct vnode *vp, struct label *intlabel, struct ucred *cred) 3030100979Srwatson{ 3031100979Srwatson int error; 3032100979Srwatson 3033100979Srwatson if (vp->v_mount == NULL) { 3034100979Srwatson /* printf("vn_setlabel: null v_mount\n"); */ 3035103314Snjl if (vp->v_type != VNON) 3036103314Snjl printf("vn_setlabel: null v_mount with non-VNON\n"); 3037100979Srwatson return (EBADF); 3038100979Srwatson } 3039100979Srwatson 3040100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) 3041100979Srwatson return (EOPNOTSUPP); 3042100979Srwatson 3043100979Srwatson /* 3044100979Srwatson * Multi-phase commit. First check the policies to confirm the 3045100979Srwatson * change is OK. Then commit via the filesystem. Finally, 3046100979Srwatson * update the actual vnode label. Question: maybe the filesystem 3047100979Srwatson * should update the vnode at the end as part of VOP_SETLABEL()? 3048100979Srwatson */ 3049100979Srwatson error = mac_check_vnode_relabel(cred, vp, intlabel); 3050100979Srwatson if (error) 3051100979Srwatson return (error); 3052100979Srwatson 3053100979Srwatson /* 3054100979Srwatson * VADMIN provides the opportunity for the filesystem to make 3055100979Srwatson * decisions about who is and is not able to modify labels 3056100979Srwatson * and protections on files. This might not be right. We can't 3057100979Srwatson * assume VOP_SETLABEL() will do it, because we might implement 3058100979Srwatson * that as part of vop_stdsetlabel_ea(). 3059100979Srwatson */ 3060100979Srwatson error = VOP_ACCESS(vp, VADMIN, cred, curthread); 3061100979Srwatson if (error) 3062100979Srwatson return (error); 3063100979Srwatson 3064100979Srwatson error = VOP_SETLABEL(vp, intlabel, cred, curthread); 3065100979Srwatson if (error) 3066100979Srwatson return (error); 3067100979Srwatson 3068100979Srwatson return (0); 3069100979Srwatson} 3070100979Srwatson 3071100979Srwatson/* 3072100979Srwatson * MPSAFE 3073100979Srwatson */ 3074100979Srwatsonint 3075100894Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 3076100894Srwatson{ 3077100979Srwatson struct mac extmac; 3078100979Srwatson int error; 3079100894Srwatson 3080100979Srwatson error = mac_externalize(&td->td_ucred->cr_label, &extmac); 3081100979Srwatson if (error == 0) 3082100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3083100979Srwatson 3084100979Srwatson return (error); 3085100979Srwatson} 3086100979Srwatson 3087100979Srwatson/* 3088100979Srwatson * MPSAFE 3089100979Srwatson */ 3090100979Srwatsonint 3091100979Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3092100979Srwatson{ 3093100979Srwatson struct ucred *newcred, *oldcred; 3094100979Srwatson struct proc *p; 3095100979Srwatson struct mac extmac; 3096100979Srwatson struct label intlabel; 3097100979Srwatson int error; 3098100979Srwatson 3099100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3100100979Srwatson if (error) 3101100979Srwatson return (error); 3102100979Srwatson 3103100979Srwatson error = mac_internalize(&intlabel, &extmac); 3104100979Srwatson if (error) 3105100979Srwatson return (error); 3106100979Srwatson 3107100979Srwatson newcred = crget(); 3108100979Srwatson 3109100979Srwatson p = td->td_proc; 3110100979Srwatson PROC_LOCK(p); 3111100979Srwatson oldcred = p->p_ucred; 3112100979Srwatson 3113100979Srwatson error = mac_check_cred_relabel(oldcred, &intlabel); 3114100979Srwatson if (error) { 3115100979Srwatson PROC_UNLOCK(p); 3116100979Srwatson mac_destroy_temp(&intlabel); 3117100979Srwatson crfree(newcred); 3118100979Srwatson return (error); 3119100979Srwatson } 3120100979Srwatson 3121100979Srwatson setsugid(p); 3122100979Srwatson crcopy(newcred, oldcred); 3123100979Srwatson mac_relabel_cred(newcred, &intlabel); 3124102136Srwatson p->p_ucred = newcred; 3125100979Srwatson 3126102136Srwatson /* 3127102136Srwatson * Grab additional reference for use while revoking mmaps, prior 3128102136Srwatson * to releasing the proc lock and sharing the cred. 3129102136Srwatson */ 3130102136Srwatson crhold(newcred); 3131100979Srwatson PROC_UNLOCK(p); 3132102136Srwatson 3133103135Srwatson mtx_lock(&Giant); 3134102136Srwatson mac_cred_mmapped_drop_perms(td, newcred); 3135103135Srwatson mtx_unlock(&Giant); 3136102136Srwatson 3137102136Srwatson crfree(newcred); /* Free revocation reference. */ 3138100979Srwatson crfree(oldcred); 3139100979Srwatson mac_destroy_temp(&intlabel); 3140100979Srwatson return (0); 3141100979Srwatson} 3142100979Srwatson 3143100979Srwatson/* 3144100979Srwatson * MPSAFE 3145100979Srwatson */ 3146100979Srwatsonint 3147100979Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3148100979Srwatson{ 3149100979Srwatson struct file *fp; 3150100979Srwatson struct mac extmac; 3151100979Srwatson struct vnode *vp; 3152100979Srwatson struct pipe *pipe; 3153100979Srwatson int error; 3154100979Srwatson 3155100979Srwatson mtx_lock(&Giant); 3156100979Srwatson 3157100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3158100979Srwatson if (error) 3159100979Srwatson goto out; 3160100979Srwatson 3161100979Srwatson switch (fp->f_type) { 3162100979Srwatson case DTYPE_FIFO: 3163100979Srwatson case DTYPE_VNODE: 3164100979Srwatson vp = (struct vnode *)fp->f_data; 3165100979Srwatson 3166100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3167100979Srwatson error = vn_refreshlabel(vp, td->td_ucred); 3168100979Srwatson if (error == 0) 3169100979Srwatson error = mac_externalize(&vp->v_label, &extmac); 3170100979Srwatson VOP_UNLOCK(vp, 0, td); 3171100979Srwatson break; 3172100979Srwatson case DTYPE_PIPE: 3173100979Srwatson pipe = (struct pipe *)fp->f_data; 3174100979Srwatson error = mac_externalize(pipe->pipe_label, &extmac); 3175100979Srwatson break; 3176100979Srwatson default: 3177100979Srwatson error = EINVAL; 3178100979Srwatson } 3179100979Srwatson 3180100979Srwatson if (error == 0) 3181100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3182100979Srwatson 3183100979Srwatson fdrop(fp, td); 3184100979Srwatson 3185100979Srwatsonout: 3186100979Srwatson mtx_unlock(&Giant); 3187100979Srwatson return (error); 3188100979Srwatson} 3189100979Srwatson 3190100979Srwatson/* 3191100979Srwatson * MPSAFE 3192100979Srwatson */ 3193100979Srwatsonint 3194100979Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3195100979Srwatson{ 3196100979Srwatson struct nameidata nd; 3197100979Srwatson struct mac extmac; 3198100979Srwatson int error; 3199100979Srwatson 3200100979Srwatson mtx_lock(&Giant); 3201100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3202100979Srwatson SCARG(uap, path_p), td); 3203100979Srwatson error = namei(&nd); 3204100979Srwatson if (error) 3205100979Srwatson goto out; 3206100979Srwatson 3207100979Srwatson error = vn_refreshlabel(nd.ni_vp, td->td_ucred); 3208100979Srwatson if (error == 0) 3209100979Srwatson error = mac_externalize(&nd.ni_vp->v_label, &extmac); 3210100979Srwatson NDFREE(&nd, 0); 3211100979Srwatson if (error) 3212100979Srwatson goto out; 3213100979Srwatson 3214100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3215100979Srwatson 3216100979Srwatsonout: 3217100979Srwatson mtx_unlock(&Giant); 3218100979Srwatson return (error); 3219100979Srwatson} 3220100979Srwatson 3221100979Srwatson/* 3222100979Srwatson * MPSAFE 3223100979Srwatson */ 3224100979Srwatsonint 3225100979Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3226100979Srwatson{ 3227100979Srwatson struct file *fp; 3228100979Srwatson struct mac extmac; 3229100979Srwatson struct label intlabel; 3230100979Srwatson struct mount *mp; 3231100979Srwatson struct vnode *vp; 3232100979Srwatson struct pipe *pipe; 3233100979Srwatson int error; 3234100979Srwatson 3235100979Srwatson mtx_lock(&Giant); 3236100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3237100979Srwatson if (error) 3238100979Srwatson goto out1; 3239100979Srwatson 3240100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3241100979Srwatson if (error) 3242100979Srwatson goto out2; 3243100979Srwatson 3244100979Srwatson error = mac_internalize(&intlabel, &extmac); 3245100979Srwatson if (error) 3246100979Srwatson goto out2; 3247100979Srwatson 3248100979Srwatson switch (fp->f_type) { 3249100979Srwatson case DTYPE_FIFO: 3250100979Srwatson case DTYPE_VNODE: 3251100979Srwatson vp = (struct vnode *)fp->f_data; 3252100979Srwatson error = vn_start_write(vp, &mp, V_WAIT | PCATCH); 3253100979Srwatson if (error != 0) 3254100979Srwatson break; 3255100979Srwatson 3256100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3257100979Srwatson error = vn_setlabel(vp, &intlabel, td->td_ucred); 3258100979Srwatson VOP_UNLOCK(vp, 0, td); 3259100979Srwatson vn_finished_write(mp); 3260100979Srwatson mac_destroy_temp(&intlabel); 3261100979Srwatson break; 3262100979Srwatson case DTYPE_PIPE: 3263100979Srwatson pipe = (struct pipe *)fp->f_data; 3264104269Srwatson PIPE_LOCK(pipe); 3265100979Srwatson error = mac_pipe_label_set(td->td_ucred, pipe, &intlabel); 3266104269Srwatson PIPE_UNLOCK(pipe); 3267100979Srwatson break; 3268100979Srwatson default: 3269100979Srwatson error = EINVAL; 3270100979Srwatson } 3271100979Srwatson 3272100979Srwatsonout2: 3273100979Srwatson fdrop(fp, td); 3274100979Srwatsonout1: 3275100979Srwatson mtx_unlock(&Giant); 3276100979Srwatson return (error); 3277100979Srwatson} 3278100979Srwatson 3279100979Srwatson/* 3280100979Srwatson * MPSAFE 3281100979Srwatson */ 3282100979Srwatsonint 3283100979Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3284100979Srwatson{ 3285100979Srwatson struct nameidata nd; 3286100979Srwatson struct mac extmac; 3287100979Srwatson struct label intlabel; 3288100979Srwatson struct mount *mp; 3289100979Srwatson int error; 3290100979Srwatson 3291100979Srwatson mtx_lock(&Giant); 3292100979Srwatson 3293100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3294100979Srwatson if (error) 3295100979Srwatson goto out; 3296100979Srwatson 3297100979Srwatson error = mac_internalize(&intlabel, &extmac); 3298100979Srwatson if (error) 3299100979Srwatson goto out; 3300100979Srwatson 3301100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3302100979Srwatson SCARG(uap, path_p), td); 3303100979Srwatson error = namei(&nd); 3304100979Srwatson if (error) 3305100979Srwatson goto out2; 3306100979Srwatson error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH); 3307100979Srwatson if (error) 3308100979Srwatson goto out2; 3309100979Srwatson 3310100979Srwatson error = vn_setlabel(nd.ni_vp, &intlabel, td->td_ucred); 3311100979Srwatson 3312100979Srwatson vn_finished_write(mp); 3313100979Srwatsonout2: 3314100979Srwatson mac_destroy_temp(&intlabel); 3315100979Srwatson NDFREE(&nd, 0); 3316100979Srwatsonout: 3317100979Srwatson mtx_unlock(&Giant); 3318100979Srwatson return (error); 3319100979Srwatson} 3320100979Srwatson 3321102123Srwatsonint 3322102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3323102123Srwatson{ 3324102123Srwatson struct mac_policy_conf *mpc; 3325102123Srwatson char target[MAC_MAX_POLICY_NAME]; 3326102123Srwatson int error; 3327102123Srwatson 3328102123Srwatson error = copyinstr(SCARG(uap, policy), target, sizeof(target), NULL); 3329102123Srwatson if (error) 3330102123Srwatson return (error); 3331102123Srwatson 3332102123Srwatson error = ENOSYS; 3333102123Srwatson MAC_POLICY_LIST_BUSY(); 3334102123Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { 3335102123Srwatson if (strcmp(mpc->mpc_name, target) == 0 && 3336102123Srwatson mpc->mpc_ops->mpo_syscall != NULL) { 3337102123Srwatson error = mpc->mpc_ops->mpo_syscall(td, 3338102123Srwatson SCARG(uap, call), SCARG(uap, arg)); 3339102123Srwatson goto out; 3340102123Srwatson } 3341102123Srwatson } 3342102123Srwatson 3343102123Srwatsonout: 3344102123Srwatson MAC_POLICY_LIST_UNBUSY(); 3345102123Srwatson return (error); 3346102123Srwatson} 3347102123Srwatson 3348100979SrwatsonSYSINIT(mac, SI_SUB_MAC, SI_ORDER_FIRST, mac_init, NULL); 3349100979SrwatsonSYSINIT(mac_late, SI_SUB_MAC_LATE, SI_ORDER_FIRST, mac_late_init, NULL); 3350100979Srwatson 3351100979Srwatson#else /* !MAC */ 3352100979Srwatson 3353100979Srwatsonint 3354100979Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 3355100979Srwatson{ 3356100979Srwatson 3357100894Srwatson return (ENOSYS); 3358100894Srwatson} 3359100894Srwatson 3360100894Srwatsonint 3361100894Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3362100894Srwatson{ 3363100894Srwatson 3364100894Srwatson return (ENOSYS); 3365100894Srwatson} 3366100894Srwatson 3367100894Srwatsonint 3368100894Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3369100894Srwatson{ 3370100894Srwatson 3371100894Srwatson return (ENOSYS); 3372100894Srwatson} 3373100894Srwatson 3374100894Srwatsonint 3375100894Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3376100894Srwatson{ 3377100894Srwatson 3378100894Srwatson return (ENOSYS); 3379100894Srwatson} 3380100894Srwatson 3381100894Srwatsonint 3382100894Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3383100894Srwatson{ 3384100894Srwatson 3385100894Srwatson return (ENOSYS); 3386100894Srwatson} 3387100894Srwatson 3388100894Srwatsonint 3389100894Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3390100894Srwatson{ 3391100894Srwatson 3392100894Srwatson return (ENOSYS); 3393100894Srwatson} 3394100979Srwatson 3395102123Srwatsonint 3396102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3397102123Srwatson{ 3398102123Srwatson 3399102123Srwatson return (ENOSYS); 3400102123Srwatson} 3401102123Srwatson 3402100979Srwatson#endif /* !MAC */ 3403