mac_cred.c revision 104522
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 104522 2002-10-05 16:57:16Z 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 931104520Srwatson /* 932104520Srwatson * If we fail the load, we may get a request to unload. Check 933104520Srwatson * to see if we did the run-time registration, and if not, 934104520Srwatson * silently succeed. 935104520Srwatson */ 936104520Srwatson MAC_POLICY_LIST_LOCK(); 937104520Srwatson if ((mpc->mpc_runtime_flags & MPC_RUNTIME_FLAG_REGISTERED) == 0) { 938104520Srwatson MAC_POLICY_LIST_UNLOCK(); 939104520Srwatson return (0); 940104520Srwatson } 941100979Srwatson#if 0 942100979Srwatson /* 943100979Srwatson * Don't allow unloading modules with private data. 944100979Srwatson */ 945104520Srwatson if (mpc->mpc_field_off != NULL) { 946104520Srwatson MAC_POLICY_LIST_UNLOCK(); 947100979Srwatson return (EBUSY); 948104520Srwatson } 949100979Srwatson#endif 950104520Srwatson /* 951104520Srwatson * Only allow the unload to proceed if the module is unloadable 952104520Srwatson * by its own definition. 953104520Srwatson */ 954104520Srwatson if ((mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_UNLOADOK) == 0) { 955104520Srwatson MAC_POLICY_LIST_UNLOCK(); 956100979Srwatson return (EBUSY); 957104520Srwatson } 958104520Srwatson /* 959104520Srwatson * Right now, we EBUSY if the list is in use. In the future, 960104520Srwatson * for reliability reasons, we might want to sleep and wakeup 961104520Srwatson * later to try again. 962104520Srwatson */ 963100979Srwatson if (mac_policy_list_busy > 0) { 964100979Srwatson MAC_POLICY_LIST_UNLOCK(); 965100979Srwatson return (EBUSY); 966100979Srwatson } 967100979Srwatson if (mpc->mpc_ops->mpo_destroy != NULL) 968100979Srwatson (*(mpc->mpc_ops->mpo_destroy))(mpc); 969100979Srwatson 970100979Srwatson LIST_REMOVE(mpc, mpc_list); 971100979Srwatson MAC_POLICY_LIST_UNLOCK(); 972100979Srwatson 973100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 974100979Srwatson mpc->mpc_ops = NULL; 975100979Srwatson 976100979Srwatson printf("Security policy unload: %s (%s)\n", mpc->mpc_fullname, 977100979Srwatson mpc->mpc_name); 978100979Srwatson 979100979Srwatson return (0); 980100979Srwatson} 981100979Srwatson 982100979Srwatson/* 983100979Srwatson * Define an error value precedence, and given two arguments, selects the 984100979Srwatson * value with the higher precedence. 985100979Srwatson */ 986100979Srwatsonstatic int 987100979Srwatsonerror_select(int error1, int error2) 988100979Srwatson{ 989100979Srwatson 990100979Srwatson /* Certain decision-making errors take top priority. */ 991100979Srwatson if (error1 == EDEADLK || error2 == EDEADLK) 992100979Srwatson return (EDEADLK); 993100979Srwatson 994100979Srwatson /* Invalid arguments should be reported where possible. */ 995100979Srwatson if (error1 == EINVAL || error2 == EINVAL) 996100979Srwatson return (EINVAL); 997100979Srwatson 998100979Srwatson /* Precedence goes to "visibility", with both process and file. */ 999100979Srwatson if (error1 == ESRCH || error2 == ESRCH) 1000100979Srwatson return (ESRCH); 1001100979Srwatson 1002100979Srwatson if (error1 == ENOENT || error2 == ENOENT) 1003100979Srwatson return (ENOENT); 1004100979Srwatson 1005100979Srwatson /* Precedence goes to DAC/MAC protections. */ 1006100979Srwatson if (error1 == EACCES || error2 == EACCES) 1007100979Srwatson return (EACCES); 1008100979Srwatson 1009100979Srwatson /* Precedence goes to privilege. */ 1010100979Srwatson if (error1 == EPERM || error2 == EPERM) 1011100979Srwatson return (EPERM); 1012100979Srwatson 1013100979Srwatson /* Precedence goes to error over success; otherwise, arbitrary. */ 1014100979Srwatson if (error1 != 0) 1015100979Srwatson return (error1); 1016100979Srwatson return (error2); 1017100979Srwatson} 1018100979Srwatson 1019104521Srwatsonstatic void 1020104521Srwatsonmac_init_label(struct label *label) 1021104521Srwatson{ 1022104521Srwatson 1023104521Srwatson bzero(label, sizeof(*label)); 1024104521Srwatson label->l_flags = MAC_FLAG_INITIALIZED; 1025104521Srwatson} 1026104521Srwatson 1027104521Srwatsonstatic void 1028104521Srwatsonmac_destroy_label(struct label *label) 1029104521Srwatson{ 1030104521Srwatson 1031104521Srwatson KASSERT(label->l_flags & MAC_FLAG_INITIALIZED, 1032104521Srwatson ("destroying uninitialized label")); 1033104521Srwatson 1034104521Srwatson bzero(label, sizeof(*label)); 1035104521Srwatson /* implicit: label->l_flags &= ~MAC_FLAG_INITIALIZED; */ 1036104521Srwatson} 1037104521Srwatson 1038104521Srwatsonstatic void 1039104521Srwatsonmac_init_structmac(struct mac *mac) 1040104521Srwatson{ 1041104521Srwatson 1042104521Srwatson bzero(mac, sizeof(*mac)); 1043104521Srwatson mac->m_macflags = MAC_FLAG_INITIALIZED; 1044104521Srwatson} 1045104521Srwatson 1046104521Srwatsonint 1047104521Srwatsonmac_init_mbuf(struct mbuf *m, int how) 1048104521Srwatson{ 1049104521Srwatson KASSERT(m->m_flags & M_PKTHDR, ("mac_init_mbuf on non-header mbuf")); 1050104521Srwatson 1051104521Srwatson /* "how" is one of M_(TRY|DONT)WAIT */ 1052104521Srwatson mac_init_label(&m->m_pkthdr.label); 1053104521Srwatson MAC_PERFORM(init_mbuf_label, &m->m_pkthdr.label, how); 1054104521Srwatson#ifdef MAC_DEBUG 1055104521Srwatson atomic_add_int(&nmacmbufs, 1); 1056104521Srwatson#endif 1057104521Srwatson return (0); 1058104521Srwatson} 1059104521Srwatson 1060100979Srwatsonvoid 1061104521Srwatsonmac_destroy_mbuf(struct mbuf *m) 1062104521Srwatson{ 1063104521Srwatson 1064104521Srwatson MAC_PERFORM(destroy_mbuf_label, &m->m_pkthdr.label); 1065104521Srwatson mac_destroy_label(&m->m_pkthdr.label); 1066104521Srwatson#ifdef MAC_DEBUG 1067104521Srwatson atomic_subtract_int(&nmacmbufs, 1); 1068104521Srwatson#endif 1069104521Srwatson} 1070104521Srwatson 1071104521Srwatsonvoid 1072104521Srwatsonmac_init_cred(struct ucred *cr) 1073104521Srwatson{ 1074104521Srwatson 1075104521Srwatson mac_init_label(&cr->cr_label); 1076104521Srwatson MAC_PERFORM(init_cred_label, &cr->cr_label); 1077104521Srwatson#ifdef MAC_DEBUG 1078104521Srwatson atomic_add_int(&nmaccreds, 1); 1079104521Srwatson#endif 1080104521Srwatson} 1081104521Srwatson 1082104521Srwatsonvoid 1083104521Srwatsonmac_destroy_cred(struct ucred *cr) 1084104521Srwatson{ 1085104521Srwatson 1086104521Srwatson MAC_PERFORM(destroy_cred_label, &cr->cr_label); 1087104521Srwatson mac_destroy_label(&cr->cr_label); 1088104521Srwatson#ifdef MAC_DEBUG 1089104521Srwatson atomic_subtract_int(&nmaccreds, 1); 1090104521Srwatson#endif 1091104521Srwatson} 1092104521Srwatson 1093104521Srwatsonvoid 1094104521Srwatsonmac_init_ifnet(struct ifnet *ifp) 1095104521Srwatson{ 1096104521Srwatson 1097104521Srwatson mac_init_label(&ifp->if_label); 1098104521Srwatson MAC_PERFORM(init_ifnet_label, &ifp->if_label); 1099104521Srwatson#ifdef MAC_DEBUG 1100104521Srwatson atomic_add_int(&nmacifnets, 1); 1101104521Srwatson#endif 1102104521Srwatson} 1103104521Srwatson 1104104521Srwatsonvoid 1105104521Srwatsonmac_destroy_ifnet(struct ifnet *ifp) 1106104521Srwatson{ 1107104521Srwatson 1108104521Srwatson MAC_PERFORM(destroy_ifnet_label, &ifp->if_label); 1109104521Srwatson mac_destroy_label(&ifp->if_label); 1110104521Srwatson#ifdef MAC_DEBUG 1111104521Srwatson atomic_subtract_int(&nmacifnets, 1); 1112104521Srwatson#endif 1113104521Srwatson} 1114104521Srwatson 1115104521Srwatsonvoid 1116104521Srwatsonmac_init_ipq(struct ipq *ipq) 1117104521Srwatson{ 1118104521Srwatson 1119104521Srwatson mac_init_label(&ipq->ipq_label); 1120104521Srwatson MAC_PERFORM(init_ipq_label, &ipq->ipq_label); 1121104521Srwatson#ifdef MAC_DEBUG 1122104521Srwatson atomic_add_int(&nmacipqs, 1); 1123104521Srwatson#endif 1124104521Srwatson} 1125104521Srwatson 1126104521Srwatsonvoid 1127104521Srwatsonmac_destroy_ipq(struct ipq *ipq) 1128104521Srwatson{ 1129104521Srwatson 1130104521Srwatson MAC_PERFORM(destroy_ipq_label, &ipq->ipq_label); 1131104521Srwatson mac_destroy_label(&ipq->ipq_label); 1132104521Srwatson#ifdef MAC_DEBUG 1133104521Srwatson atomic_subtract_int(&nmacipqs, 1); 1134104521Srwatson#endif 1135104521Srwatson} 1136104521Srwatson 1137104521Srwatsonvoid 1138104521Srwatsonmac_init_socket(struct socket *socket) 1139104521Srwatson{ 1140104521Srwatson 1141104521Srwatson mac_init_label(&socket->so_label); 1142104521Srwatson mac_init_label(&socket->so_peerlabel); 1143104521Srwatson MAC_PERFORM(init_socket_label, &socket->so_label); 1144104521Srwatson MAC_PERFORM(init_socket_peer_label, &socket->so_peerlabel); 1145104521Srwatson#ifdef MAC_DEBUG 1146104521Srwatson atomic_add_int(&nmacsockets, 1); 1147104521Srwatson#endif 1148104521Srwatson} 1149104521Srwatson 1150104521Srwatsonvoid 1151104521Srwatsonmac_destroy_socket(struct socket *socket) 1152104521Srwatson{ 1153104521Srwatson 1154104521Srwatson MAC_PERFORM(destroy_socket_label, &socket->so_label); 1155104521Srwatson MAC_PERFORM(destroy_socket_peer_label, &socket->so_peerlabel); 1156104521Srwatson mac_destroy_label(&socket->so_label); 1157104521Srwatson mac_destroy_label(&socket->so_peerlabel); 1158104521Srwatson#ifdef MAC_DEBUG 1159104521Srwatson atomic_subtract_int(&nmacsockets, 1); 1160104521Srwatson#endif 1161104521Srwatson} 1162104521Srwatson 1163104521Srwatsonvoid 1164104521Srwatsonmac_init_pipe(struct pipe *pipe) 1165104521Srwatson{ 1166104521Srwatson struct label *label; 1167104521Srwatson 1168104521Srwatson label = malloc(sizeof(struct label), M_MACPIPELABEL, M_ZERO|M_WAITOK); 1169104521Srwatson mac_init_label(label); 1170104521Srwatson pipe->pipe_label = label; 1171104521Srwatson pipe->pipe_peer->pipe_label = label; 1172104521Srwatson MAC_PERFORM(init_pipe_label, pipe->pipe_label); 1173104521Srwatson#ifdef MAC_DEBUG 1174104521Srwatson atomic_add_int(&nmacpipes, 1); 1175104521Srwatson#endif 1176104521Srwatson} 1177104521Srwatson 1178104521Srwatsonvoid 1179104521Srwatsonmac_destroy_pipe(struct pipe *pipe) 1180104521Srwatson{ 1181104521Srwatson 1182104521Srwatson MAC_PERFORM(destroy_pipe_label, pipe->pipe_label); 1183104521Srwatson mac_destroy_label(pipe->pipe_label); 1184104521Srwatson free(pipe->pipe_label, M_MACPIPELABEL); 1185104521Srwatson#ifdef MAC_DEBUG 1186104521Srwatson atomic_subtract_int(&nmacpipes, 1); 1187104521Srwatson#endif 1188104521Srwatson} 1189104521Srwatson 1190104521Srwatsonvoid 1191104521Srwatsonmac_init_bpfdesc(struct bpf_d *bpf_d) 1192104521Srwatson{ 1193104521Srwatson 1194104521Srwatson mac_init_label(&bpf_d->bd_label); 1195104521Srwatson MAC_PERFORM(init_bpfdesc_label, &bpf_d->bd_label); 1196104521Srwatson#ifdef MAC_DEBUG 1197104521Srwatson atomic_add_int(&nmacbpfdescs, 1); 1198104521Srwatson#endif 1199104521Srwatson} 1200104521Srwatson 1201104521Srwatsonvoid 1202104521Srwatsonmac_destroy_bpfdesc(struct bpf_d *bpf_d) 1203104521Srwatson{ 1204104521Srwatson 1205104521Srwatson MAC_PERFORM(destroy_bpfdesc_label, &bpf_d->bd_label); 1206104521Srwatson mac_destroy_label(&bpf_d->bd_label); 1207104521Srwatson#ifdef MAC_DEBUG 1208104521Srwatson atomic_subtract_int(&nmacbpfdescs, 1); 1209104521Srwatson#endif 1210104521Srwatson} 1211104521Srwatson 1212104521Srwatsonvoid 1213104521Srwatsonmac_init_mount(struct mount *mp) 1214104521Srwatson{ 1215104521Srwatson 1216104521Srwatson mac_init_label(&mp->mnt_mntlabel); 1217104521Srwatson mac_init_label(&mp->mnt_fslabel); 1218104521Srwatson MAC_PERFORM(init_mount_label, &mp->mnt_mntlabel); 1219104521Srwatson MAC_PERFORM(init_mount_fs_label, &mp->mnt_fslabel); 1220104521Srwatson#ifdef MAC_DEBUG 1221104521Srwatson atomic_add_int(&nmacmounts, 1); 1222104521Srwatson#endif 1223104521Srwatson} 1224104521Srwatson 1225104521Srwatsonvoid 1226104521Srwatsonmac_destroy_mount(struct mount *mp) 1227104521Srwatson{ 1228104521Srwatson 1229104521Srwatson MAC_PERFORM(destroy_mount_label, &mp->mnt_mntlabel); 1230104521Srwatson MAC_PERFORM(destroy_mount_fs_label, &mp->mnt_fslabel); 1231104521Srwatson mac_destroy_label(&mp->mnt_fslabel); 1232104521Srwatson mac_destroy_label(&mp->mnt_mntlabel); 1233104521Srwatson#ifdef MAC_DEBUG 1234104521Srwatson atomic_subtract_int(&nmacmounts, 1); 1235104521Srwatson#endif 1236104521Srwatson} 1237104521Srwatson 1238104521Srwatsonstatic void 1239104521Srwatsonmac_init_temp(struct label *label) 1240104521Srwatson{ 1241104521Srwatson 1242104521Srwatson mac_init_label(label); 1243104521Srwatson MAC_PERFORM(init_temp_label, label); 1244104521Srwatson#ifdef MAC_DEBUG 1245104521Srwatson atomic_add_int(&nmactemp, 1); 1246104521Srwatson#endif 1247104521Srwatson} 1248104521Srwatson 1249104521Srwatsonstatic void 1250104521Srwatsonmac_destroy_temp(struct label *label) 1251104521Srwatson{ 1252104521Srwatson 1253104521Srwatson MAC_PERFORM(destroy_temp_label, label); 1254104521Srwatson mac_destroy_label(label); 1255104521Srwatson#ifdef MAC_DEBUG 1256104521Srwatson atomic_subtract_int(&nmactemp, 1); 1257104521Srwatson#endif 1258104521Srwatson} 1259104521Srwatson 1260104521Srwatsonvoid 1261104521Srwatsonmac_init_vnode(struct vnode *vp) 1262104521Srwatson{ 1263104521Srwatson 1264104521Srwatson mac_init_label(&vp->v_label); 1265104521Srwatson MAC_PERFORM(init_vnode_label, &vp->v_label); 1266104521Srwatson#ifdef MAC_DEBUG 1267104521Srwatson atomic_add_int(&nmacvnodes, 1); 1268104521Srwatson#endif 1269104521Srwatson} 1270104521Srwatson 1271104521Srwatsonvoid 1272104521Srwatsonmac_destroy_vnode(struct vnode *vp) 1273104521Srwatson{ 1274104521Srwatson 1275104521Srwatson MAC_PERFORM(destroy_vnode_label, &vp->v_label); 1276104521Srwatson mac_destroy_label(&vp->v_label); 1277104521Srwatson#ifdef MAC_DEBUG 1278104521Srwatson atomic_subtract_int(&nmacvnodes, 1); 1279104521Srwatson#endif 1280104521Srwatson} 1281104521Srwatson 1282104521Srwatsonvoid 1283104521Srwatsonmac_init_devfsdirent(struct devfs_dirent *de) 1284104521Srwatson{ 1285104521Srwatson 1286104521Srwatson mac_init_label(&de->de_label); 1287104521Srwatson MAC_PERFORM(init_devfsdirent_label, &de->de_label); 1288104521Srwatson#ifdef MAC_DEBUG 1289104521Srwatson atomic_add_int(&nmacdevfsdirents, 1); 1290104521Srwatson#endif 1291104521Srwatson} 1292104521Srwatson 1293104521Srwatsonvoid 1294104521Srwatsonmac_destroy_devfsdirent(struct devfs_dirent *de) 1295104521Srwatson{ 1296104521Srwatson 1297104521Srwatson MAC_PERFORM(destroy_devfsdirent_label, &de->de_label); 1298104521Srwatson mac_destroy_label(&de->de_label); 1299104521Srwatson#ifdef MAC_DEBUG 1300104521Srwatson atomic_subtract_int(&nmacdevfsdirents, 1); 1301104521Srwatson#endif 1302104521Srwatson} 1303104521Srwatson 1304104522Srwatsonstatic int 1305104522Srwatsonmac_externalize(struct label *label, struct mac *mac) 1306104522Srwatson{ 1307104522Srwatson int error; 1308104522Srwatson 1309104522Srwatson mac_init_structmac(mac); 1310104522Srwatson MAC_CHECK(externalize, label, mac); 1311104522Srwatson 1312104522Srwatson return (error); 1313104522Srwatson} 1314104522Srwatson 1315104522Srwatsonstatic int 1316104522Srwatsonmac_internalize(struct label *label, struct mac *mac) 1317104522Srwatson{ 1318104522Srwatson int error; 1319104522Srwatson 1320104522Srwatson mac_init_temp(label); 1321104522Srwatson MAC_CHECK(internalize, label, mac); 1322104522Srwatson if (error) 1323104522Srwatson mac_destroy_temp(label); 1324104522Srwatson 1325104522Srwatson return (error); 1326104522Srwatson} 1327104522Srwatson 1328104522Srwatson/* 1329104522Srwatson * Initialize MAC label for the first kernel process, from which other 1330104522Srwatson * kernel processes and threads are spawned. 1331104522Srwatson */ 1332104521Srwatsonvoid 1333104522Srwatsonmac_create_proc0(struct ucred *cred) 1334104522Srwatson{ 1335104522Srwatson 1336104522Srwatson MAC_PERFORM(create_proc0, cred); 1337104522Srwatson} 1338104522Srwatson 1339104522Srwatson/* 1340104522Srwatson * Initialize MAC label for the first userland process, from which other 1341104522Srwatson * userland processes and threads are spawned. 1342104522Srwatson */ 1343104522Srwatsonvoid 1344104522Srwatsonmac_create_proc1(struct ucred *cred) 1345104522Srwatson{ 1346104522Srwatson 1347104522Srwatson MAC_PERFORM(create_proc1, cred); 1348104522Srwatson} 1349104522Srwatson 1350104522Srwatsonvoid 1351104522Srwatsonmac_thread_userret(struct thread *td) 1352104522Srwatson{ 1353104522Srwatson 1354104522Srwatson MAC_PERFORM(thread_userret, td); 1355104522Srwatson} 1356104522Srwatson 1357104522Srwatson/* 1358104522Srwatson * When a new process is created, its label must be initialized. Generally, 1359104522Srwatson * this involves inheritence from the parent process, modulo possible 1360104522Srwatson * deltas. This function allows that processing to take place. 1361104522Srwatson */ 1362104522Srwatsonvoid 1363104522Srwatsonmac_create_cred(struct ucred *parent_cred, struct ucred *child_cred) 1364104522Srwatson{ 1365104522Srwatson 1366104522Srwatson MAC_PERFORM(create_cred, parent_cred, child_cred); 1367104522Srwatson} 1368104522Srwatson 1369104522Srwatsonvoid 1370100979Srwatsonmac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp) 1371100979Srwatson{ 1372100979Srwatson 1373100979Srwatson MAC_PERFORM(update_devfsdirent, de, &de->de_label, vp, &vp->v_label); 1374100979Srwatson} 1375100979Srwatson 1376100979Srwatsonvoid 1377100979Srwatsonmac_update_procfsvnode(struct vnode *vp, struct ucred *cred) 1378100979Srwatson{ 1379100979Srwatson 1380100979Srwatson MAC_PERFORM(update_procfsvnode, vp, &vp->v_label, cred); 1381100979Srwatson} 1382100979Srwatson 1383100979Srwatson/* 1384100979Srwatson * Support callout for policies that manage their own externalization 1385100979Srwatson * using extended attributes. 1386100979Srwatson */ 1387100979Srwatsonstatic int 1388100979Srwatsonmac_update_vnode_from_extattr(struct vnode *vp, struct mount *mp) 1389100979Srwatson{ 1390100979Srwatson int error; 1391100979Srwatson 1392100979Srwatson MAC_CHECK(update_vnode_from_extattr, vp, &vp->v_label, mp, 1393100979Srwatson &mp->mnt_fslabel); 1394100979Srwatson 1395100979Srwatson return (error); 1396100979Srwatson} 1397100979Srwatson 1398100979Srwatson/* 1399100979Srwatson * Given an externalized mac label, internalize it and stamp it on a 1400100979Srwatson * vnode. 1401100979Srwatson */ 1402100979Srwatsonstatic int 1403100979Srwatsonmac_update_vnode_from_externalized(struct vnode *vp, struct mac *extmac) 1404100979Srwatson{ 1405100979Srwatson int error; 1406100979Srwatson 1407100979Srwatson MAC_CHECK(update_vnode_from_externalized, vp, &vp->v_label, extmac); 1408100979Srwatson 1409100979Srwatson return (error); 1410100979Srwatson} 1411100979Srwatson 1412100979Srwatson/* 1413100979Srwatson * Call out to individual policies to update the label in a vnode from 1414100979Srwatson * the mountpoint. 1415100979Srwatson */ 1416100979Srwatsonvoid 1417100979Srwatsonmac_update_vnode_from_mount(struct vnode *vp, struct mount *mp) 1418100979Srwatson{ 1419100979Srwatson 1420100979Srwatson MAC_PERFORM(update_vnode_from_mount, vp, &vp->v_label, mp, 1421100979Srwatson &mp->mnt_fslabel); 1422100979Srwatson 1423101308Sjeff ASSERT_VOP_LOCKED(vp, "mac_update_vnode_from_mount"); 1424100979Srwatson if (mac_cache_fslabel_in_vnode) 1425101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1426100979Srwatson} 1427100979Srwatson 1428100979Srwatson/* 1429100979Srwatson * Implementation of VOP_REFRESHLABEL() that relies on extended attributes 1430100979Srwatson * to store label data. Can be referenced by filesystems supporting 1431100979Srwatson * extended attributes. 1432100979Srwatson */ 1433100979Srwatsonint 1434100979Srwatsonvop_stdrefreshlabel_ea(struct vop_refreshlabel_args *ap) 1435100979Srwatson{ 1436100979Srwatson struct vnode *vp = ap->a_vp; 1437100979Srwatson struct mac extmac; 1438100979Srwatson int buflen, error; 1439100979Srwatson 1440100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdrefreshlabel_ea"); 1441100979Srwatson 1442100979Srwatson /* 1443100979Srwatson * Call out to external policies first. Order doesn't really 1444100979Srwatson * matter, as long as failure of one assures failure of all. 1445100979Srwatson */ 1446100979Srwatson error = mac_update_vnode_from_extattr(vp, vp->v_mount); 1447100979Srwatson if (error) 1448100979Srwatson return (error); 1449100979Srwatson 1450100979Srwatson buflen = sizeof(extmac); 1451100979Srwatson error = vn_extattr_get(vp, IO_NODELOCKED, 1452100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, &buflen, 1453100979Srwatson (char *)&extmac, curthread); 1454100979Srwatson switch (error) { 1455100979Srwatson case 0: 1456100979Srwatson /* Got it */ 1457100979Srwatson break; 1458100979Srwatson 1459100979Srwatson case ENOATTR: 1460100979Srwatson /* 1461100979Srwatson * Use the label from the mount point. 1462100979Srwatson */ 1463100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1464100979Srwatson return (0); 1465100979Srwatson 1466100979Srwatson case EOPNOTSUPP: 1467100979Srwatson default: 1468100979Srwatson /* Fail horribly. */ 1469100979Srwatson return (error); 1470100979Srwatson } 1471100979Srwatson 1472100979Srwatson if (buflen != sizeof(extmac)) 1473100979Srwatson error = EPERM; /* Fail very closed. */ 1474100979Srwatson if (error == 0) 1475100979Srwatson error = mac_update_vnode_from_externalized(vp, &extmac); 1476100979Srwatson if (error == 0) 1477101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1478100979Srwatson else { 1479100979Srwatson struct vattr va; 1480100979Srwatson 1481100979Srwatson printf("Corrupted label on %s", 1482100979Srwatson vp->v_mount->mnt_stat.f_mntonname); 1483100979Srwatson if (VOP_GETATTR(vp, &va, curthread->td_ucred, curthread) == 0) 1484100979Srwatson printf(" inum %ld", va.va_fileid); 1485104268Srwatson#ifdef MAC_DEBUG 1486100979Srwatson if (mac_debug_label_fallback) { 1487100979Srwatson printf(", falling back.\n"); 1488100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1489100979Srwatson error = 0; 1490100979Srwatson } else { 1491104268Srwatson#endif 1492100979Srwatson printf(".\n"); 1493100979Srwatson error = EPERM; 1494104268Srwatson#ifdef MAC_DEBUG 1495100979Srwatson } 1496104268Srwatson#endif 1497100979Srwatson } 1498100979Srwatson 1499100979Srwatson return (error); 1500100979Srwatson} 1501100979Srwatson 1502100979Srwatson/* 1503100979Srwatson * Make sure the vnode label is up-to-date. If EOPNOTSUPP, then we handle 1504100979Srwatson * the labeling activity outselves. Filesystems should be careful not 1505100979Srwatson * to change their minds regarding whether they support vop_refreshlabel() 1506100979Srwatson * for a vnode or not. Don't cache the vnode here, allow the file 1507100979Srwatson * system code to determine if it's safe to cache. If we update from 1508100979Srwatson * the mount, don't cache since a change to the mount label should affect 1509100979Srwatson * all vnodes. 1510100979Srwatson */ 1511100979Srwatsonstatic int 1512100979Srwatsonvn_refreshlabel(struct vnode *vp, struct ucred *cred) 1513100979Srwatson{ 1514100979Srwatson int error; 1515100979Srwatson 1516100979Srwatson ASSERT_VOP_LOCKED(vp, "vn_refreshlabel"); 1517100979Srwatson 1518100979Srwatson if (vp->v_mount == NULL) { 1519100979Srwatson/* 1520100979Srwatson Eventually, we probably want to special-case refreshing 1521100979Srwatson of deadfs vnodes, and if there's a lock-free race somewhere, 1522100979Srwatson that case might be handled here. 1523100979Srwatson 1524100979Srwatson mac_update_vnode_deadfs(vp); 1525100979Srwatson return (0); 1526100979Srwatson */ 1527100979Srwatson /* printf("vn_refreshlabel: null v_mount\n"); */ 1528103314Snjl if (vp->v_type != VNON) 1529100979Srwatson printf( 1530103314Snjl "vn_refreshlabel: null v_mount with non-VNON\n"); 1531100979Srwatson return (EBADF); 1532100979Srwatson } 1533100979Srwatson 1534101308Sjeff if (vp->v_vflag & VV_CACHEDLABEL) { 1535100979Srwatson mac_vnode_label_cache_hits++; 1536100979Srwatson return (0); 1537100979Srwatson } else 1538100979Srwatson mac_vnode_label_cache_misses++; 1539100979Srwatson 1540100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1541100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1542100979Srwatson return (0); 1543100979Srwatson } 1544100979Srwatson 1545100979Srwatson error = VOP_REFRESHLABEL(vp, cred, curthread); 1546100979Srwatson switch (error) { 1547100979Srwatson case EOPNOTSUPP: 1548100979Srwatson /* 1549100979Srwatson * If labels are not supported on this vnode, fall back to 1550100979Srwatson * the label in the mount and propagate it to the vnode. 1551100979Srwatson * There should probably be some sort of policy/flag/decision 1552100979Srwatson * about doing this. 1553100979Srwatson */ 1554100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1555100979Srwatson error = 0; 1556100979Srwatson default: 1557100979Srwatson return (error); 1558100979Srwatson } 1559100979Srwatson} 1560100979Srwatson 1561100979Srwatson/* 1562100979Srwatson * Helper function for file systems using the vop_std*_ea() calls. This 1563100979Srwatson * function must be called after EA service is available for the vnode, 1564100979Srwatson * but before it's hooked up to the namespace so that the node persists 1565100979Srwatson * if there's a crash, or before it can be accessed. On successful 1566100979Srwatson * commit of the label to disk (etc), do cache the label. 1567100979Srwatson */ 1568100979Srwatsonint 1569100979Srwatsonvop_stdcreatevnode_ea(struct vnode *dvp, struct vnode *tvp, struct ucred *cred) 1570100979Srwatson{ 1571100979Srwatson struct mac extmac; 1572100979Srwatson int error; 1573100979Srwatson 1574101308Sjeff ASSERT_VOP_LOCKED(tvp, "vop_stdcreatevnode_ea"); 1575100979Srwatson if ((dvp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1576100979Srwatson mac_update_vnode_from_mount(tvp, tvp->v_mount); 1577100979Srwatson } else { 1578100979Srwatson error = vn_refreshlabel(dvp, cred); 1579100979Srwatson if (error) 1580100979Srwatson return (error); 1581100979Srwatson 1582100979Srwatson /* 1583100979Srwatson * Stick the label in the vnode. Then try to write to 1584100979Srwatson * disk. If we fail, return a failure to abort the 1585100979Srwatson * create operation. Really, this failure shouldn't 1586100979Srwatson * happen except in fairly unusual circumstances (out 1587100979Srwatson * of disk, etc). 1588100979Srwatson */ 1589100979Srwatson mac_create_vnode(cred, dvp, tvp); 1590100979Srwatson 1591100979Srwatson error = mac_stdcreatevnode_ea(tvp); 1592100979Srwatson if (error) 1593100979Srwatson return (error); 1594100979Srwatson 1595100979Srwatson /* 1596100979Srwatson * XXX: Eventually this will go away and all policies will 1597100979Srwatson * directly manage their extended attributes. 1598100979Srwatson */ 1599100979Srwatson error = mac_externalize(&tvp->v_label, &extmac); 1600100979Srwatson if (error) 1601100979Srwatson return (error); 1602100979Srwatson 1603100979Srwatson error = vn_extattr_set(tvp, IO_NODELOCKED, 1604100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 1605100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 1606100979Srwatson if (error == 0) 1607101308Sjeff tvp->v_vflag |= VV_CACHEDLABEL; 1608100979Srwatson else { 1609100979Srwatson#if 0 1610100979Srwatson /* 1611100979Srwatson * In theory, we could have fall-back behavior here. 1612100979Srwatson * It would probably be incorrect. 1613100979Srwatson */ 1614100979Srwatson#endif 1615100979Srwatson return (error); 1616100979Srwatson } 1617100979Srwatson } 1618100979Srwatson 1619100979Srwatson return (0); 1620100979Srwatson} 1621100979Srwatson 1622100979Srwatsonvoid 1623100979Srwatsonmac_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp) 1624100979Srwatson{ 1625100979Srwatson int error; 1626100979Srwatson 1627100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_execve_transition"); 1628100979Srwatson 1629100979Srwatson error = vn_refreshlabel(vp, old); 1630100979Srwatson if (error) { 1631100979Srwatson printf("mac_execve_transition: vn_refreshlabel returned %d\n", 1632100979Srwatson error); 1633100979Srwatson printf("mac_execve_transition: using old vnode label\n"); 1634100979Srwatson } 1635100979Srwatson 1636100979Srwatson MAC_PERFORM(execve_transition, old, new, vp, &vp->v_label); 1637100979Srwatson} 1638100979Srwatson 1639100979Srwatsonint 1640100979Srwatsonmac_execve_will_transition(struct ucred *old, struct vnode *vp) 1641100979Srwatson{ 1642100979Srwatson int error, result; 1643100979Srwatson 1644100979Srwatson error = vn_refreshlabel(vp, old); 1645100979Srwatson if (error) 1646100979Srwatson return (error); 1647100979Srwatson 1648100979Srwatson result = 0; 1649100979Srwatson MAC_BOOLEAN(execve_will_transition, ||, old, vp, &vp->v_label); 1650100979Srwatson 1651100979Srwatson return (result); 1652100979Srwatson} 1653100979Srwatson 1654100979Srwatsonint 1655100979Srwatsonmac_check_vnode_access(struct ucred *cred, struct vnode *vp, int flags) 1656100979Srwatson{ 1657100979Srwatson int error; 1658100979Srwatson 1659100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_access"); 1660100979Srwatson 1661100979Srwatson if (!mac_enforce_fs) 1662100979Srwatson return (0); 1663100979Srwatson 1664100979Srwatson error = vn_refreshlabel(vp, cred); 1665100979Srwatson if (error) 1666100979Srwatson return (error); 1667100979Srwatson 1668100979Srwatson MAC_CHECK(check_vnode_access, cred, vp, &vp->v_label, flags); 1669100979Srwatson return (error); 1670100979Srwatson} 1671100979Srwatson 1672100979Srwatsonint 1673100979Srwatsonmac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp) 1674100979Srwatson{ 1675100979Srwatson int error; 1676100979Srwatson 1677100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chdir"); 1678100979Srwatson 1679100979Srwatson if (!mac_enforce_fs) 1680100979Srwatson return (0); 1681100979Srwatson 1682100979Srwatson error = vn_refreshlabel(dvp, cred); 1683100979Srwatson if (error) 1684100979Srwatson return (error); 1685100979Srwatson 1686100979Srwatson MAC_CHECK(check_vnode_chdir, cred, dvp, &dvp->v_label); 1687100979Srwatson return (error); 1688100979Srwatson} 1689100979Srwatson 1690100979Srwatsonint 1691100979Srwatsonmac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp) 1692100979Srwatson{ 1693100979Srwatson int error; 1694100979Srwatson 1695100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chroot"); 1696100979Srwatson 1697100979Srwatson if (!mac_enforce_fs) 1698100979Srwatson return (0); 1699100979Srwatson 1700100979Srwatson error = vn_refreshlabel(dvp, cred); 1701100979Srwatson if (error) 1702100979Srwatson return (error); 1703100979Srwatson 1704100979Srwatson MAC_CHECK(check_vnode_chroot, cred, dvp, &dvp->v_label); 1705100979Srwatson return (error); 1706100979Srwatson} 1707100979Srwatson 1708100979Srwatsonint 1709100979Srwatsonmac_check_vnode_create(struct ucred *cred, struct vnode *dvp, 1710100979Srwatson struct componentname *cnp, struct vattr *vap) 1711100979Srwatson{ 1712100979Srwatson int error; 1713100979Srwatson 1714100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_create"); 1715100979Srwatson 1716100979Srwatson if (!mac_enforce_fs) 1717100979Srwatson return (0); 1718100979Srwatson 1719100979Srwatson error = vn_refreshlabel(dvp, cred); 1720100979Srwatson if (error) 1721100979Srwatson return (error); 1722100979Srwatson 1723100979Srwatson MAC_CHECK(check_vnode_create, cred, dvp, &dvp->v_label, cnp, vap); 1724100979Srwatson return (error); 1725100979Srwatson} 1726100979Srwatson 1727100979Srwatsonint 1728100979Srwatsonmac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, struct vnode *vp, 1729100979Srwatson struct componentname *cnp) 1730100979Srwatson{ 1731100979Srwatson int error; 1732100979Srwatson 1733100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_delete"); 1734100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_delete"); 1735100979Srwatson 1736100979Srwatson if (!mac_enforce_fs) 1737100979Srwatson return (0); 1738100979Srwatson 1739100979Srwatson error = vn_refreshlabel(dvp, cred); 1740100979Srwatson if (error) 1741100979Srwatson return (error); 1742100979Srwatson error = vn_refreshlabel(vp, cred); 1743100979Srwatson if (error) 1744100979Srwatson return (error); 1745100979Srwatson 1746100979Srwatson MAC_CHECK(check_vnode_delete, cred, dvp, &dvp->v_label, vp, 1747100979Srwatson &vp->v_label, cnp); 1748100979Srwatson return (error); 1749100979Srwatson} 1750100979Srwatson 1751100979Srwatsonint 1752100979Srwatsonmac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 1753100979Srwatson acl_type_t type) 1754100979Srwatson{ 1755100979Srwatson int error; 1756100979Srwatson 1757100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_deleteacl"); 1758100979Srwatson 1759100979Srwatson if (!mac_enforce_fs) 1760100979Srwatson return (0); 1761100979Srwatson 1762100979Srwatson error = vn_refreshlabel(vp, cred); 1763100979Srwatson if (error) 1764100979Srwatson return (error); 1765100979Srwatson 1766100979Srwatson MAC_CHECK(check_vnode_deleteacl, cred, vp, &vp->v_label, type); 1767100979Srwatson return (error); 1768100979Srwatson} 1769100979Srwatson 1770100979Srwatsonint 1771100979Srwatsonmac_check_vnode_exec(struct ucred *cred, struct vnode *vp) 1772100979Srwatson{ 1773100979Srwatson int error; 1774100979Srwatson 1775102102Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_exec"); 1776102102Srwatson 1777100979Srwatson if (!mac_enforce_process && !mac_enforce_fs) 1778100979Srwatson return (0); 1779100979Srwatson 1780100979Srwatson error = vn_refreshlabel(vp, cred); 1781100979Srwatson if (error) 1782100979Srwatson return (error); 1783100979Srwatson MAC_CHECK(check_vnode_exec, cred, vp, &vp->v_label); 1784100979Srwatson 1785100979Srwatson return (error); 1786100979Srwatson} 1787100979Srwatson 1788100979Srwatsonint 1789100979Srwatsonmac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, acl_type_t type) 1790100979Srwatson{ 1791100979Srwatson int error; 1792100979Srwatson 1793100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getacl"); 1794100979Srwatson 1795100979Srwatson if (!mac_enforce_fs) 1796100979Srwatson return (0); 1797100979Srwatson 1798100979Srwatson error = vn_refreshlabel(vp, cred); 1799100979Srwatson if (error) 1800100979Srwatson return (error); 1801100979Srwatson 1802100979Srwatson MAC_CHECK(check_vnode_getacl, cred, vp, &vp->v_label, type); 1803100979Srwatson return (error); 1804100979Srwatson} 1805100979Srwatson 1806100979Srwatsonint 1807100979Srwatsonmac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 1808100979Srwatson int attrnamespace, const char *name, struct uio *uio) 1809100979Srwatson{ 1810100979Srwatson int error; 1811100979Srwatson 1812100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getextattr"); 1813100979Srwatson 1814100979Srwatson if (!mac_enforce_fs) 1815100979Srwatson return (0); 1816100979Srwatson 1817100979Srwatson error = vn_refreshlabel(vp, cred); 1818100979Srwatson if (error) 1819100979Srwatson return (error); 1820100979Srwatson 1821100979Srwatson MAC_CHECK(check_vnode_getextattr, cred, vp, &vp->v_label, 1822100979Srwatson attrnamespace, name, uio); 1823100979Srwatson return (error); 1824100979Srwatson} 1825100979Srwatson 1826100979Srwatsonint 1827100979Srwatsonmac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 1828100979Srwatson struct componentname *cnp) 1829100979Srwatson{ 1830100979Srwatson int error; 1831100979Srwatson 1832100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_lookup"); 1833100979Srwatson 1834100979Srwatson if (!mac_enforce_fs) 1835100979Srwatson return (0); 1836100979Srwatson 1837100979Srwatson error = vn_refreshlabel(dvp, cred); 1838100979Srwatson if (error) 1839100979Srwatson return (error); 1840100979Srwatson 1841100979Srwatson MAC_CHECK(check_vnode_lookup, cred, dvp, &dvp->v_label, cnp); 1842100979Srwatson return (error); 1843100979Srwatson} 1844100979Srwatson 1845100979Srwatsonvm_prot_t 1846100979Srwatsonmac_check_vnode_mmap_prot(struct ucred *cred, struct vnode *vp, int newmapping) 1847100979Srwatson{ 1848100979Srwatson vm_prot_t result = VM_PROT_ALL; 1849100979Srwatson 1850103514Srwatson if (!mac_enforce_vm) 1851103514Srwatson return (result); 1852103514Srwatson 1853100979Srwatson /* 1854100979Srwatson * This should be some sort of MAC_BITWISE, maybe :) 1855100979Srwatson */ 1856100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_mmap_perms"); 1857100979Srwatson MAC_BOOLEAN(check_vnode_mmap_perms, &, cred, vp, &vp->v_label, 1858100979Srwatson newmapping); 1859100979Srwatson return (result); 1860100979Srwatson} 1861100979Srwatson 1862100979Srwatsonint 1863102112Srwatsonmac_check_vnode_open(struct ucred *cred, struct vnode *vp, mode_t acc_mode) 1864100979Srwatson{ 1865100979Srwatson int error; 1866100979Srwatson 1867102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_open"); 1868102112Srwatson 1869100979Srwatson if (!mac_enforce_fs) 1870100979Srwatson return (0); 1871100979Srwatson 1872102112Srwatson error = vn_refreshlabel(vp, cred); 1873102112Srwatson if (error) 1874102112Srwatson return (error); 1875100979Srwatson 1876102112Srwatson MAC_CHECK(check_vnode_open, cred, vp, &vp->v_label, acc_mode); 1877102112Srwatson return (error); 1878102112Srwatson} 1879102112Srwatson 1880102112Srwatsonint 1881102129Srwatsonmac_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 1882102129Srwatson struct vnode *vp) 1883102112Srwatson{ 1884102112Srwatson int error; 1885102112Srwatson 1886102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_poll"); 1887102112Srwatson 1888102112Srwatson if (!mac_enforce_fs) 1889102112Srwatson return (0); 1890102112Srwatson 1891102129Srwatson error = vn_refreshlabel(vp, active_cred); 1892100979Srwatson if (error) 1893100979Srwatson return (error); 1894100979Srwatson 1895102129Srwatson MAC_CHECK(check_vnode_poll, active_cred, file_cred, vp, 1896102129Srwatson &vp->v_label); 1897100979Srwatson 1898100979Srwatson return (error); 1899100979Srwatson} 1900100979Srwatson 1901100979Srwatsonint 1902102129Srwatsonmac_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 1903102129Srwatson struct vnode *vp) 1904100979Srwatson{ 1905100979Srwatson int error; 1906100979Srwatson 1907102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_read"); 1908100979Srwatson 1909100979Srwatson if (!mac_enforce_fs) 1910100979Srwatson return (0); 1911100979Srwatson 1912102129Srwatson error = vn_refreshlabel(vp, active_cred); 1913100979Srwatson if (error) 1914100979Srwatson return (error); 1915100979Srwatson 1916102129Srwatson MAC_CHECK(check_vnode_read, active_cred, file_cred, vp, 1917102129Srwatson &vp->v_label); 1918102112Srwatson 1919100979Srwatson return (error); 1920100979Srwatson} 1921100979Srwatson 1922100979Srwatsonint 1923100979Srwatsonmac_check_vnode_readdir(struct ucred *cred, struct vnode *dvp) 1924100979Srwatson{ 1925100979Srwatson int error; 1926100979Srwatson 1927100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_readdir"); 1928100979Srwatson 1929100979Srwatson if (!mac_enforce_fs) 1930100979Srwatson return (0); 1931100979Srwatson 1932100979Srwatson error = vn_refreshlabel(dvp, cred); 1933100979Srwatson if (error) 1934100979Srwatson return (error); 1935100979Srwatson 1936100979Srwatson MAC_CHECK(check_vnode_readdir, cred, dvp, &dvp->v_label); 1937100979Srwatson return (error); 1938100979Srwatson} 1939100979Srwatson 1940100979Srwatsonint 1941100979Srwatsonmac_check_vnode_readlink(struct ucred *cred, struct vnode *vp) 1942100979Srwatson{ 1943100979Srwatson int error; 1944100979Srwatson 1945100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_readlink"); 1946100979Srwatson 1947100979Srwatson if (!mac_enforce_fs) 1948100979Srwatson return (0); 1949100979Srwatson 1950100979Srwatson error = vn_refreshlabel(vp, cred); 1951100979Srwatson if (error) 1952100979Srwatson return (error); 1953100979Srwatson 1954100979Srwatson MAC_CHECK(check_vnode_readlink, cred, vp, &vp->v_label); 1955100979Srwatson return (error); 1956100979Srwatson} 1957100979Srwatson 1958100979Srwatsonstatic int 1959100979Srwatsonmac_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 1960100979Srwatson struct label *newlabel) 1961100979Srwatson{ 1962100979Srwatson int error; 1963100979Srwatson 1964100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_relabel"); 1965100979Srwatson 1966100979Srwatson error = vn_refreshlabel(vp, cred); 1967100979Srwatson if (error) 1968100979Srwatson return (error); 1969100979Srwatson 1970100979Srwatson MAC_CHECK(check_vnode_relabel, cred, vp, &vp->v_label, newlabel); 1971100979Srwatson 1972100979Srwatson return (error); 1973100979Srwatson} 1974100979Srwatson 1975100979Srwatsonint 1976100979Srwatsonmac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 1977100979Srwatson struct vnode *vp, struct componentname *cnp) 1978100979Srwatson{ 1979100979Srwatson int error; 1980100979Srwatson 1981100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_from"); 1982100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_from"); 1983100979Srwatson 1984100979Srwatson if (!mac_enforce_fs) 1985100979Srwatson return (0); 1986100979Srwatson 1987100979Srwatson error = vn_refreshlabel(dvp, cred); 1988100979Srwatson if (error) 1989100979Srwatson return (error); 1990100979Srwatson error = vn_refreshlabel(vp, cred); 1991100979Srwatson if (error) 1992100979Srwatson return (error); 1993100979Srwatson 1994100979Srwatson MAC_CHECK(check_vnode_rename_from, cred, dvp, &dvp->v_label, vp, 1995100979Srwatson &vp->v_label, cnp); 1996100979Srwatson return (error); 1997100979Srwatson} 1998100979Srwatson 1999100979Srwatsonint 2000100979Srwatsonmac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 2001100979Srwatson struct vnode *vp, int samedir, struct componentname *cnp) 2002100979Srwatson{ 2003100979Srwatson int error; 2004100979Srwatson 2005100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_to"); 2006100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_to"); 2007100979Srwatson 2008100979Srwatson if (!mac_enforce_fs) 2009100979Srwatson return (0); 2010100979Srwatson 2011100979Srwatson error = vn_refreshlabel(dvp, cred); 2012100979Srwatson if (error) 2013100979Srwatson return (error); 2014100979Srwatson if (vp != NULL) { 2015100979Srwatson error = vn_refreshlabel(vp, cred); 2016100979Srwatson if (error) 2017100979Srwatson return (error); 2018100979Srwatson } 2019100979Srwatson MAC_CHECK(check_vnode_rename_to, cred, dvp, &dvp->v_label, vp, 2020100979Srwatson vp != NULL ? &vp->v_label : NULL, samedir, cnp); 2021100979Srwatson return (error); 2022100979Srwatson} 2023100979Srwatson 2024100979Srwatsonint 2025100979Srwatsonmac_check_vnode_revoke(struct ucred *cred, struct vnode *vp) 2026100979Srwatson{ 2027100979Srwatson int error; 2028100979Srwatson 2029100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_revoke"); 2030100979Srwatson 2031100979Srwatson if (!mac_enforce_fs) 2032100979Srwatson return (0); 2033100979Srwatson 2034100979Srwatson error = vn_refreshlabel(vp, cred); 2035100979Srwatson if (error) 2036100979Srwatson return (error); 2037100979Srwatson 2038100979Srwatson MAC_CHECK(check_vnode_revoke, cred, vp, &vp->v_label); 2039100979Srwatson return (error); 2040100979Srwatson} 2041100979Srwatson 2042100979Srwatsonint 2043100979Srwatsonmac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, acl_type_t type, 2044100979Srwatson struct acl *acl) 2045100979Srwatson{ 2046100979Srwatson int error; 2047100979Srwatson 2048100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setacl"); 2049100979Srwatson 2050100979Srwatson if (!mac_enforce_fs) 2051100979Srwatson return (0); 2052100979Srwatson 2053100979Srwatson error = vn_refreshlabel(vp, cred); 2054100979Srwatson if (error) 2055100979Srwatson return (error); 2056100979Srwatson 2057100979Srwatson MAC_CHECK(check_vnode_setacl, cred, vp, &vp->v_label, type, acl); 2058100979Srwatson return (error); 2059100979Srwatson} 2060100979Srwatson 2061100979Srwatsonint 2062100979Srwatsonmac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 2063100979Srwatson int attrnamespace, const char *name, struct uio *uio) 2064100979Srwatson{ 2065100979Srwatson int error; 2066100979Srwatson 2067100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setextattr"); 2068100979Srwatson 2069100979Srwatson if (!mac_enforce_fs) 2070100979Srwatson return (0); 2071100979Srwatson 2072100979Srwatson error = vn_refreshlabel(vp, cred); 2073100979Srwatson if (error) 2074100979Srwatson return (error); 2075100979Srwatson 2076100979Srwatson MAC_CHECK(check_vnode_setextattr, cred, vp, &vp->v_label, 2077100979Srwatson attrnamespace, name, uio); 2078100979Srwatson return (error); 2079100979Srwatson} 2080100979Srwatson 2081100979Srwatsonint 2082100979Srwatsonmac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, u_long flags) 2083100979Srwatson{ 2084100979Srwatson int error; 2085100979Srwatson 2086100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setflags"); 2087100979Srwatson 2088100979Srwatson if (!mac_enforce_fs) 2089100979Srwatson return (0); 2090100979Srwatson 2091100979Srwatson error = vn_refreshlabel(vp, cred); 2092100979Srwatson if (error) 2093100979Srwatson return (error); 2094100979Srwatson 2095100979Srwatson MAC_CHECK(check_vnode_setflags, cred, vp, &vp->v_label, flags); 2096100979Srwatson return (error); 2097100979Srwatson} 2098100979Srwatson 2099100979Srwatsonint 2100100979Srwatsonmac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, mode_t mode) 2101100979Srwatson{ 2102100979Srwatson int error; 2103100979Srwatson 2104100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setmode"); 2105100979Srwatson 2106100979Srwatson if (!mac_enforce_fs) 2107100979Srwatson return (0); 2108100979Srwatson 2109100979Srwatson error = vn_refreshlabel(vp, cred); 2110100979Srwatson if (error) 2111100979Srwatson return (error); 2112100979Srwatson 2113100979Srwatson MAC_CHECK(check_vnode_setmode, cred, vp, &vp->v_label, mode); 2114100979Srwatson return (error); 2115100979Srwatson} 2116100979Srwatson 2117100979Srwatsonint 2118100979Srwatsonmac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, uid_t uid, 2119100979Srwatson gid_t gid) 2120100979Srwatson{ 2121100979Srwatson int error; 2122100979Srwatson 2123100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setowner"); 2124100979Srwatson 2125100979Srwatson if (!mac_enforce_fs) 2126100979Srwatson return (0); 2127100979Srwatson 2128100979Srwatson error = vn_refreshlabel(vp, cred); 2129100979Srwatson if (error) 2130100979Srwatson return (error); 2131100979Srwatson 2132100979Srwatson MAC_CHECK(check_vnode_setowner, cred, vp, &vp->v_label, uid, gid); 2133100979Srwatson return (error); 2134100979Srwatson} 2135100979Srwatson 2136100979Srwatsonint 2137100979Srwatsonmac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 2138100979Srwatson struct timespec atime, struct timespec mtime) 2139100979Srwatson{ 2140100979Srwatson int error; 2141100979Srwatson 2142100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setutimes"); 2143100979Srwatson 2144100979Srwatson if (!mac_enforce_fs) 2145100979Srwatson return (0); 2146100979Srwatson 2147100979Srwatson error = vn_refreshlabel(vp, cred); 2148100979Srwatson if (error) 2149100979Srwatson return (error); 2150100979Srwatson 2151100979Srwatson MAC_CHECK(check_vnode_setutimes, cred, vp, &vp->v_label, atime, 2152100979Srwatson mtime); 2153100979Srwatson return (error); 2154100979Srwatson} 2155100979Srwatson 2156100979Srwatsonint 2157102129Srwatsonmac_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 2158102129Srwatson struct vnode *vp) 2159100979Srwatson{ 2160100979Srwatson int error; 2161100979Srwatson 2162100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_stat"); 2163100979Srwatson 2164100979Srwatson if (!mac_enforce_fs) 2165100979Srwatson return (0); 2166100979Srwatson 2167102129Srwatson error = vn_refreshlabel(vp, active_cred); 2168100979Srwatson if (error) 2169100979Srwatson return (error); 2170100979Srwatson 2171102129Srwatson MAC_CHECK(check_vnode_stat, active_cred, file_cred, vp, 2172102129Srwatson &vp->v_label); 2173100979Srwatson return (error); 2174100979Srwatson} 2175100979Srwatson 2176102112Srwatsonint 2177102129Srwatsonmac_check_vnode_write(struct ucred *active_cred, struct ucred *file_cred, 2178102129Srwatson struct vnode *vp) 2179102112Srwatson{ 2180102112Srwatson int error; 2181102112Srwatson 2182102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_write"); 2183102112Srwatson 2184102112Srwatson if (!mac_enforce_fs) 2185102112Srwatson return (0); 2186102112Srwatson 2187102129Srwatson error = vn_refreshlabel(vp, active_cred); 2188102112Srwatson if (error) 2189102112Srwatson return (error); 2190102112Srwatson 2191102129Srwatson MAC_CHECK(check_vnode_write, active_cred, file_cred, vp, 2192102129Srwatson &vp->v_label); 2193102112Srwatson 2194102112Srwatson return (error); 2195102112Srwatson} 2196102112Srwatson 2197100979Srwatson/* 2198100979Srwatson * When relabeling a process, call out to the policies for the maximum 2199100979Srwatson * permission allowed for each object type we know about in its 2200100979Srwatson * memory space, and revoke access (in the least surprising ways we 2201100979Srwatson * know) when necessary. The process lock is not held here. 2202100979Srwatson */ 2203100979Srwatsonstatic void 2204100979Srwatsonmac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred) 2205100979Srwatson{ 2206100979Srwatson 2207100979Srwatson /* XXX freeze all other threads */ 2208100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2209100979Srwatson &td->td_proc->p_vmspace->vm_map); 2210100979Srwatson /* XXX allow other threads to continue */ 2211100979Srwatson} 2212100979Srwatson 2213100979Srwatsonstatic __inline const char * 2214100979Srwatsonprot2str(vm_prot_t prot) 2215100979Srwatson{ 2216100979Srwatson 2217100979Srwatson switch (prot & VM_PROT_ALL) { 2218100979Srwatson case VM_PROT_READ: 2219100979Srwatson return ("r--"); 2220100979Srwatson case VM_PROT_READ | VM_PROT_WRITE: 2221100979Srwatson return ("rw-"); 2222100979Srwatson case VM_PROT_READ | VM_PROT_EXECUTE: 2223100979Srwatson return ("r-x"); 2224100979Srwatson case VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE: 2225100979Srwatson return ("rwx"); 2226100979Srwatson case VM_PROT_WRITE: 2227100979Srwatson return ("-w-"); 2228100979Srwatson case VM_PROT_EXECUTE: 2229100979Srwatson return ("--x"); 2230100979Srwatson case VM_PROT_WRITE | VM_PROT_EXECUTE: 2231100979Srwatson return ("-wx"); 2232100979Srwatson default: 2233100979Srwatson return ("---"); 2234100979Srwatson } 2235100979Srwatson} 2236100979Srwatson 2237100979Srwatsonstatic void 2238100979Srwatsonmac_cred_mmapped_drop_perms_recurse(struct thread *td, struct ucred *cred, 2239100979Srwatson struct vm_map *map) 2240100979Srwatson{ 2241100979Srwatson struct vm_map_entry *vme; 2242100979Srwatson vm_prot_t result, revokeperms; 2243100979Srwatson vm_object_t object; 2244100979Srwatson vm_ooffset_t offset; 2245100979Srwatson struct vnode *vp; 2246100979Srwatson 2247103136Srwatson if (!mac_mmap_revocation) 2248103136Srwatson return; 2249103136Srwatson 2250100979Srwatson vm_map_lock_read(map); 2251100979Srwatson for (vme = map->header.next; vme != &map->header; vme = vme->next) { 2252100979Srwatson if (vme->eflags & MAP_ENTRY_IS_SUB_MAP) { 2253100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2254100979Srwatson vme->object.sub_map); 2255100979Srwatson continue; 2256100979Srwatson } 2257100979Srwatson /* 2258100979Srwatson * Skip over entries that obviously are not shared. 2259100979Srwatson */ 2260100979Srwatson if (vme->eflags & (MAP_ENTRY_COW | MAP_ENTRY_NOSYNC) || 2261100979Srwatson !vme->max_protection) 2262100979Srwatson continue; 2263100979Srwatson /* 2264100979Srwatson * Drill down to the deepest backing object. 2265100979Srwatson */ 2266100979Srwatson offset = vme->offset; 2267100979Srwatson object = vme->object.vm_object; 2268100979Srwatson if (object == NULL) 2269100979Srwatson continue; 2270100979Srwatson while (object->backing_object != NULL) { 2271100979Srwatson object = object->backing_object; 2272100979Srwatson offset += object->backing_object_offset; 2273100979Srwatson } 2274100979Srwatson /* 2275100979Srwatson * At the moment, vm_maps and objects aren't considered 2276100979Srwatson * by the MAC system, so only things with backing by a 2277100979Srwatson * normal object (read: vnodes) are checked. 2278100979Srwatson */ 2279100979Srwatson if (object->type != OBJT_VNODE) 2280100979Srwatson continue; 2281100979Srwatson vp = (struct vnode *)object->handle; 2282100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2283100979Srwatson result = mac_check_vnode_mmap_prot(cred, vp, 0); 2284100979Srwatson VOP_UNLOCK(vp, 0, td); 2285100979Srwatson /* 2286100979Srwatson * Find out what maximum protection we may be allowing 2287100979Srwatson * now but a policy needs to get removed. 2288100979Srwatson */ 2289100979Srwatson revokeperms = vme->max_protection & ~result; 2290100979Srwatson if (!revokeperms) 2291100979Srwatson continue; 2292102949Sbde printf("pid %ld: revoking %s perms from %#lx:%ld " 2293102949Sbde "(max %s/cur %s)\n", (long)td->td_proc->p_pid, 2294102949Sbde prot2str(revokeperms), (u_long)vme->start, 2295102949Sbde (long)(vme->end - vme->start), 2296100979Srwatson prot2str(vme->max_protection), prot2str(vme->protection)); 2297100979Srwatson vm_map_lock_upgrade(map); 2298100979Srwatson /* 2299100979Srwatson * This is the really simple case: if a map has more 2300100979Srwatson * max_protection than is allowed, but it's not being 2301100979Srwatson * actually used (that is, the current protection is 2302100979Srwatson * still allowed), we can just wipe it out and do 2303100979Srwatson * nothing more. 2304100979Srwatson */ 2305100979Srwatson if ((vme->protection & revokeperms) == 0) { 2306100979Srwatson vme->max_protection -= revokeperms; 2307100979Srwatson } else { 2308100979Srwatson if (revokeperms & VM_PROT_WRITE) { 2309100979Srwatson /* 2310100979Srwatson * In the more complicated case, flush out all 2311100979Srwatson * pending changes to the object then turn it 2312100979Srwatson * copy-on-write. 2313100979Srwatson */ 2314100979Srwatson vm_object_reference(object); 2315100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2316100979Srwatson vm_object_page_clean(object, 2317100979Srwatson OFF_TO_IDX(offset), 2318100979Srwatson OFF_TO_IDX(offset + vme->end - vme->start + 2319100979Srwatson PAGE_MASK), 2320100979Srwatson OBJPC_SYNC); 2321100979Srwatson VOP_UNLOCK(vp, 0, td); 2322100979Srwatson vm_object_deallocate(object); 2323100979Srwatson /* 2324100979Srwatson * Why bother if there's no read permissions 2325100979Srwatson * anymore? For the rest, we need to leave 2326100979Srwatson * the write permissions on for COW, or 2327100979Srwatson * remove them entirely if configured to. 2328100979Srwatson */ 2329100979Srwatson if (!mac_mmap_revocation_via_cow) { 2330100979Srwatson vme->max_protection &= ~VM_PROT_WRITE; 2331100979Srwatson vme->protection &= ~VM_PROT_WRITE; 2332100979Srwatson } if ((revokeperms & VM_PROT_READ) == 0) 2333100979Srwatson vme->eflags |= MAP_ENTRY_COW | 2334100979Srwatson MAP_ENTRY_NEEDS_COPY; 2335100979Srwatson } 2336100979Srwatson if (revokeperms & VM_PROT_EXECUTE) { 2337100979Srwatson vme->max_protection &= ~VM_PROT_EXECUTE; 2338100979Srwatson vme->protection &= ~VM_PROT_EXECUTE; 2339100979Srwatson } 2340100979Srwatson if (revokeperms & VM_PROT_READ) { 2341100979Srwatson vme->max_protection = 0; 2342100979Srwatson vme->protection = 0; 2343100979Srwatson } 2344100979Srwatson pmap_protect(map->pmap, vme->start, vme->end, 2345100979Srwatson vme->protection & ~revokeperms); 2346100979Srwatson vm_map_simplify_entry(map, vme); 2347100979Srwatson } 2348100979Srwatson vm_map_lock_downgrade(map); 2349100979Srwatson } 2350100979Srwatson vm_map_unlock_read(map); 2351100979Srwatson} 2352100979Srwatson 2353100979Srwatson/* 2354100979Srwatson * When the subject's label changes, it may require revocation of privilege 2355100979Srwatson * to mapped objects. This can't be done on-the-fly later with a unified 2356100979Srwatson * buffer cache. 2357100979Srwatson */ 2358100979Srwatsonstatic void 2359100979Srwatsonmac_relabel_cred(struct ucred *cred, struct label *newlabel) 2360100979Srwatson{ 2361100979Srwatson 2362100979Srwatson MAC_PERFORM(relabel_cred, cred, newlabel); 2363100979Srwatson} 2364100979Srwatson 2365100979Srwatsonvoid 2366100979Srwatsonmac_relabel_vnode(struct ucred *cred, struct vnode *vp, struct label *newlabel) 2367100979Srwatson{ 2368100979Srwatson 2369100979Srwatson MAC_PERFORM(relabel_vnode, cred, vp, &vp->v_label, newlabel); 2370100979Srwatson} 2371100979Srwatson 2372100979Srwatsonvoid 2373100979Srwatsonmac_create_ifnet(struct ifnet *ifnet) 2374100979Srwatson{ 2375100979Srwatson 2376100979Srwatson MAC_PERFORM(create_ifnet, ifnet, &ifnet->if_label); 2377100979Srwatson} 2378100979Srwatson 2379100979Srwatsonvoid 2380100979Srwatsonmac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d) 2381100979Srwatson{ 2382100979Srwatson 2383100979Srwatson MAC_PERFORM(create_bpfdesc, cred, bpf_d, &bpf_d->bd_label); 2384100979Srwatson} 2385100979Srwatson 2386100979Srwatsonvoid 2387100979Srwatsonmac_create_socket(struct ucred *cred, struct socket *socket) 2388100979Srwatson{ 2389100979Srwatson 2390100979Srwatson MAC_PERFORM(create_socket, cred, socket, &socket->so_label); 2391100979Srwatson} 2392100979Srwatson 2393100979Srwatsonvoid 2394100979Srwatsonmac_create_pipe(struct ucred *cred, struct pipe *pipe) 2395100979Srwatson{ 2396100979Srwatson 2397100979Srwatson MAC_PERFORM(create_pipe, cred, pipe, pipe->pipe_label); 2398100979Srwatson} 2399100979Srwatson 2400100979Srwatsonvoid 2401100979Srwatsonmac_create_socket_from_socket(struct socket *oldsocket, 2402100979Srwatson struct socket *newsocket) 2403100979Srwatson{ 2404100979Srwatson 2405100979Srwatson MAC_PERFORM(create_socket_from_socket, oldsocket, &oldsocket->so_label, 2406100979Srwatson newsocket, &newsocket->so_label); 2407100979Srwatson} 2408100979Srwatson 2409100979Srwatsonstatic void 2410100979Srwatsonmac_relabel_socket(struct ucred *cred, struct socket *socket, 2411100979Srwatson struct label *newlabel) 2412100979Srwatson{ 2413100979Srwatson 2414100979Srwatson MAC_PERFORM(relabel_socket, cred, socket, &socket->so_label, newlabel); 2415100979Srwatson} 2416100979Srwatson 2417100979Srwatsonstatic void 2418100979Srwatsonmac_relabel_pipe(struct ucred *cred, struct pipe *pipe, struct label *newlabel) 2419100979Srwatson{ 2420100979Srwatson 2421100979Srwatson MAC_PERFORM(relabel_pipe, cred, pipe, pipe->pipe_label, newlabel); 2422100979Srwatson} 2423100979Srwatson 2424100979Srwatsonvoid 2425100979Srwatsonmac_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct socket *socket) 2426100979Srwatson{ 2427100979Srwatson 2428100979Srwatson MAC_PERFORM(set_socket_peer_from_mbuf, mbuf, &mbuf->m_pkthdr.label, 2429100979Srwatson socket, &socket->so_peerlabel); 2430100979Srwatson} 2431100979Srwatson 2432100979Srwatsonvoid 2433100979Srwatsonmac_set_socket_peer_from_socket(struct socket *oldsocket, 2434100979Srwatson struct socket *newsocket) 2435100979Srwatson{ 2436100979Srwatson 2437100979Srwatson MAC_PERFORM(set_socket_peer_from_socket, oldsocket, 2438100979Srwatson &oldsocket->so_label, newsocket, &newsocket->so_peerlabel); 2439100979Srwatson} 2440100979Srwatson 2441100979Srwatsonvoid 2442100979Srwatsonmac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram) 2443100979Srwatson{ 2444100979Srwatson 2445100979Srwatson MAC_PERFORM(create_datagram_from_ipq, ipq, &ipq->ipq_label, 2446100979Srwatson datagram, &datagram->m_pkthdr.label); 2447100979Srwatson} 2448100979Srwatson 2449100979Srwatsonvoid 2450100979Srwatsonmac_create_fragment(struct mbuf *datagram, struct mbuf *fragment) 2451100979Srwatson{ 2452100979Srwatson 2453100979Srwatson MAC_PERFORM(create_fragment, datagram, &datagram->m_pkthdr.label, 2454100979Srwatson fragment, &fragment->m_pkthdr.label); 2455100979Srwatson} 2456100979Srwatson 2457100979Srwatsonvoid 2458100979Srwatsonmac_create_ipq(struct mbuf *fragment, struct ipq *ipq) 2459100979Srwatson{ 2460100979Srwatson 2461100979Srwatson MAC_PERFORM(create_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2462100979Srwatson &ipq->ipq_label); 2463100979Srwatson} 2464100979Srwatson 2465100979Srwatsonvoid 2466100979Srwatsonmac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2467100979Srwatson{ 2468100979Srwatson 2469100979Srwatson MAC_PERFORM(create_mbuf_from_mbuf, oldmbuf, &oldmbuf->m_pkthdr.label, 2470100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2471100979Srwatson} 2472100979Srwatson 2473100979Srwatsonvoid 2474100979Srwatsonmac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *mbuf) 2475100979Srwatson{ 2476100979Srwatson 2477100979Srwatson MAC_PERFORM(create_mbuf_from_bpfdesc, bpf_d, &bpf_d->bd_label, mbuf, 2478100979Srwatson &mbuf->m_pkthdr.label); 2479100979Srwatson} 2480100979Srwatson 2481100979Srwatsonvoid 2482100979Srwatsonmac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *mbuf) 2483100979Srwatson{ 2484100979Srwatson 2485100979Srwatson MAC_PERFORM(create_mbuf_linklayer, ifnet, &ifnet->if_label, mbuf, 2486100979Srwatson &mbuf->m_pkthdr.label); 2487100979Srwatson} 2488100979Srwatson 2489100979Srwatsonvoid 2490100979Srwatsonmac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *mbuf) 2491100979Srwatson{ 2492100979Srwatson 2493100979Srwatson MAC_PERFORM(create_mbuf_from_ifnet, ifnet, &ifnet->if_label, mbuf, 2494100979Srwatson &mbuf->m_pkthdr.label); 2495100979Srwatson} 2496100979Srwatson 2497100979Srwatsonvoid 2498100979Srwatsonmac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, struct ifnet *ifnet, 2499100979Srwatson struct mbuf *newmbuf) 2500100979Srwatson{ 2501100979Srwatson 2502100979Srwatson MAC_PERFORM(create_mbuf_multicast_encap, oldmbuf, 2503100979Srwatson &oldmbuf->m_pkthdr.label, ifnet, &ifnet->if_label, newmbuf, 2504100979Srwatson &newmbuf->m_pkthdr.label); 2505100979Srwatson} 2506100979Srwatson 2507100979Srwatsonvoid 2508100979Srwatsonmac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2509100979Srwatson{ 2510100979Srwatson 2511100979Srwatson MAC_PERFORM(create_mbuf_netlayer, oldmbuf, &oldmbuf->m_pkthdr.label, 2512100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2513100979Srwatson} 2514100979Srwatson 2515100979Srwatsonint 2516100979Srwatsonmac_fragment_match(struct mbuf *fragment, struct ipq *ipq) 2517100979Srwatson{ 2518100979Srwatson int result; 2519100979Srwatson 2520100979Srwatson result = 1; 2521100979Srwatson MAC_BOOLEAN(fragment_match, &&, fragment, &fragment->m_pkthdr.label, 2522100979Srwatson ipq, &ipq->ipq_label); 2523100979Srwatson 2524100979Srwatson return (result); 2525100979Srwatson} 2526100979Srwatson 2527100979Srwatsonvoid 2528100979Srwatsonmac_update_ipq(struct mbuf *fragment, struct ipq *ipq) 2529100979Srwatson{ 2530100979Srwatson 2531100979Srwatson MAC_PERFORM(update_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2532100979Srwatson &ipq->ipq_label); 2533100979Srwatson} 2534100979Srwatson 2535100979Srwatsonvoid 2536100979Srwatsonmac_create_mbuf_from_socket(struct socket *socket, struct mbuf *mbuf) 2537100979Srwatson{ 2538100979Srwatson 2539100979Srwatson MAC_PERFORM(create_mbuf_from_socket, socket, &socket->so_label, mbuf, 2540100979Srwatson &mbuf->m_pkthdr.label); 2541100979Srwatson} 2542100979Srwatson 2543100979Srwatsonvoid 2544100979Srwatsonmac_create_mount(struct ucred *cred, struct mount *mp) 2545100979Srwatson{ 2546100979Srwatson 2547100979Srwatson MAC_PERFORM(create_mount, cred, mp, &mp->mnt_mntlabel, 2548100979Srwatson &mp->mnt_fslabel); 2549100979Srwatson} 2550100979Srwatson 2551100979Srwatsonvoid 2552100979Srwatsonmac_create_root_mount(struct ucred *cred, struct mount *mp) 2553100979Srwatson{ 2554100979Srwatson 2555100979Srwatson MAC_PERFORM(create_root_mount, cred, mp, &mp->mnt_mntlabel, 2556100979Srwatson &mp->mnt_fslabel); 2557100979Srwatson} 2558100979Srwatson 2559100979Srwatsonint 2560100979Srwatsonmac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet) 2561100979Srwatson{ 2562100979Srwatson int error; 2563100979Srwatson 2564100979Srwatson if (!mac_enforce_network) 2565100979Srwatson return (0); 2566100979Srwatson 2567100979Srwatson MAC_CHECK(check_bpfdesc_receive, bpf_d, &bpf_d->bd_label, ifnet, 2568100979Srwatson &ifnet->if_label); 2569100979Srwatson 2570100979Srwatson return (error); 2571100979Srwatson} 2572100979Srwatson 2573100979Srwatsonstatic int 2574100979Srwatsonmac_check_cred_relabel(struct ucred *cred, struct label *newlabel) 2575100979Srwatson{ 2576100979Srwatson int error; 2577100979Srwatson 2578100979Srwatson MAC_CHECK(check_cred_relabel, cred, newlabel); 2579100979Srwatson 2580100979Srwatson return (error); 2581100979Srwatson} 2582100979Srwatson 2583100979Srwatsonint 2584100979Srwatsonmac_check_cred_visible(struct ucred *u1, struct ucred *u2) 2585100979Srwatson{ 2586100979Srwatson int error; 2587100979Srwatson 2588100979Srwatson if (!mac_enforce_process) 2589100979Srwatson return (0); 2590100979Srwatson 2591100979Srwatson MAC_CHECK(check_cred_visible, u1, u2); 2592100979Srwatson 2593100979Srwatson return (error); 2594100979Srwatson} 2595100979Srwatson 2596100979Srwatsonint 2597100979Srwatsonmac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *mbuf) 2598100979Srwatson{ 2599100979Srwatson int error; 2600100979Srwatson 2601100979Srwatson if (!mac_enforce_network) 2602100979Srwatson return (0); 2603100979Srwatson 2604100979Srwatson KASSERT(mbuf->m_flags & M_PKTHDR, ("packet has no pkthdr")); 2605100979Srwatson if (!(mbuf->m_pkthdr.label.l_flags & MAC_FLAG_INITIALIZED)) 2606100979Srwatson printf("%s%d: not initialized\n", ifnet->if_name, 2607100979Srwatson ifnet->if_unit); 2608100979Srwatson 2609100979Srwatson MAC_CHECK(check_ifnet_transmit, ifnet, &ifnet->if_label, mbuf, 2610100979Srwatson &mbuf->m_pkthdr.label); 2611100979Srwatson 2612100979Srwatson return (error); 2613100979Srwatson} 2614100979Srwatson 2615100979Srwatsonint 2616100979Srwatsonmac_check_mount_stat(struct ucred *cred, struct mount *mount) 2617100979Srwatson{ 2618100979Srwatson int error; 2619100979Srwatson 2620100979Srwatson if (!mac_enforce_fs) 2621100979Srwatson return (0); 2622100979Srwatson 2623100979Srwatson MAC_CHECK(check_mount_stat, cred, mount, &mount->mnt_mntlabel); 2624100979Srwatson 2625100979Srwatson return (error); 2626100979Srwatson} 2627100979Srwatson 2628100979Srwatsonint 2629100979Srwatsonmac_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe, unsigned long cmd, 2630100979Srwatson void *data) 2631100979Srwatson{ 2632100979Srwatson int error; 2633100979Srwatson 2634104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2635104269Srwatson 2636104269Srwatson if (!mac_enforce_pipe) 2637104269Srwatson return (0); 2638104269Srwatson 2639100979Srwatson MAC_CHECK(check_pipe_ioctl, cred, pipe, pipe->pipe_label, cmd, data); 2640100979Srwatson 2641100979Srwatson return (error); 2642100979Srwatson} 2643100979Srwatson 2644100979Srwatsonint 2645102115Srwatsonmac_check_pipe_poll(struct ucred *cred, struct pipe *pipe) 2646100979Srwatson{ 2647100979Srwatson int error; 2648100979Srwatson 2649104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2650104269Srwatson 2651104269Srwatson if (!mac_enforce_pipe) 2652104269Srwatson return (0); 2653104269Srwatson 2654102115Srwatson MAC_CHECK(check_pipe_poll, cred, pipe, pipe->pipe_label); 2655100979Srwatson 2656100979Srwatson return (error); 2657100979Srwatson} 2658100979Srwatson 2659102115Srwatsonint 2660102115Srwatsonmac_check_pipe_read(struct ucred *cred, struct pipe *pipe) 2661102115Srwatson{ 2662102115Srwatson int error; 2663102115Srwatson 2664104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2665104269Srwatson 2666104269Srwatson if (!mac_enforce_pipe) 2667104269Srwatson return (0); 2668104269Srwatson 2669102115Srwatson MAC_CHECK(check_pipe_read, cred, pipe, pipe->pipe_label); 2670102115Srwatson 2671102115Srwatson return (error); 2672102115Srwatson} 2673102115Srwatson 2674100979Srwatsonstatic int 2675100979Srwatsonmac_check_pipe_relabel(struct ucred *cred, struct pipe *pipe, 2676100979Srwatson struct label *newlabel) 2677100979Srwatson{ 2678100979Srwatson int error; 2679100979Srwatson 2680104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2681104269Srwatson 2682104269Srwatson if (!mac_enforce_pipe) 2683104269Srwatson return (0); 2684104269Srwatson 2685100979Srwatson MAC_CHECK(check_pipe_relabel, cred, pipe, pipe->pipe_label, newlabel); 2686100979Srwatson 2687100979Srwatson return (error); 2688100979Srwatson} 2689100979Srwatson 2690100979Srwatsonint 2691102115Srwatsonmac_check_pipe_stat(struct ucred *cred, struct pipe *pipe) 2692102115Srwatson{ 2693102115Srwatson int error; 2694102115Srwatson 2695104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2696104269Srwatson 2697104269Srwatson if (!mac_enforce_pipe) 2698104269Srwatson return (0); 2699104269Srwatson 2700102115Srwatson MAC_CHECK(check_pipe_stat, cred, pipe, pipe->pipe_label); 2701102115Srwatson 2702102115Srwatson return (error); 2703102115Srwatson} 2704102115Srwatson 2705102115Srwatsonint 2706102115Srwatsonmac_check_pipe_write(struct ucred *cred, struct pipe *pipe) 2707102115Srwatson{ 2708102115Srwatson int error; 2709102115Srwatson 2710104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2711104269Srwatson 2712104269Srwatson if (!mac_enforce_pipe) 2713104269Srwatson return (0); 2714104269Srwatson 2715102115Srwatson MAC_CHECK(check_pipe_write, cred, pipe, pipe->pipe_label); 2716102115Srwatson 2717102115Srwatson return (error); 2718102115Srwatson} 2719102115Srwatson 2720102115Srwatsonint 2721100979Srwatsonmac_check_proc_debug(struct ucred *cred, struct proc *proc) 2722100979Srwatson{ 2723100979Srwatson int error; 2724100979Srwatson 2725102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2726102103Srwatson 2727100979Srwatson if (!mac_enforce_process) 2728100979Srwatson return (0); 2729100979Srwatson 2730100979Srwatson MAC_CHECK(check_proc_debug, cred, proc); 2731100979Srwatson 2732100979Srwatson return (error); 2733100979Srwatson} 2734100979Srwatson 2735100979Srwatsonint 2736100979Srwatsonmac_check_proc_sched(struct ucred *cred, struct proc *proc) 2737100979Srwatson{ 2738100979Srwatson int error; 2739100979Srwatson 2740102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2741102103Srwatson 2742100979Srwatson if (!mac_enforce_process) 2743100979Srwatson return (0); 2744100979Srwatson 2745100979Srwatson MAC_CHECK(check_proc_sched, cred, proc); 2746100979Srwatson 2747100979Srwatson return (error); 2748100979Srwatson} 2749100979Srwatson 2750100979Srwatsonint 2751100979Srwatsonmac_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 2752100979Srwatson{ 2753100979Srwatson int error; 2754100979Srwatson 2755102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2756102103Srwatson 2757100979Srwatson if (!mac_enforce_process) 2758100979Srwatson return (0); 2759100979Srwatson 2760100979Srwatson MAC_CHECK(check_proc_signal, cred, proc, signum); 2761100979Srwatson 2762100979Srwatson return (error); 2763100979Srwatson} 2764100979Srwatson 2765100979Srwatsonint 2766100979Srwatsonmac_check_socket_bind(struct ucred *ucred, struct socket *socket, 2767100979Srwatson struct sockaddr *sockaddr) 2768100979Srwatson{ 2769100979Srwatson int error; 2770100979Srwatson 2771100979Srwatson if (!mac_enforce_socket) 2772100979Srwatson return (0); 2773100979Srwatson 2774100979Srwatson MAC_CHECK(check_socket_bind, ucred, socket, &socket->so_label, 2775100979Srwatson sockaddr); 2776100979Srwatson 2777100979Srwatson return (error); 2778100979Srwatson} 2779100979Srwatson 2780100979Srwatsonint 2781100979Srwatsonmac_check_socket_connect(struct ucred *cred, struct socket *socket, 2782100979Srwatson struct sockaddr *sockaddr) 2783100979Srwatson{ 2784100979Srwatson int error; 2785100979Srwatson 2786100979Srwatson if (!mac_enforce_socket) 2787100979Srwatson return (0); 2788100979Srwatson 2789100979Srwatson MAC_CHECK(check_socket_connect, cred, socket, &socket->so_label, 2790100979Srwatson sockaddr); 2791100979Srwatson 2792100979Srwatson return (error); 2793100979Srwatson} 2794100979Srwatson 2795100979Srwatsonint 2796101933Srwatsonmac_check_socket_deliver(struct socket *socket, struct mbuf *mbuf) 2797100979Srwatson{ 2798100979Srwatson int error; 2799100979Srwatson 2800100979Srwatson if (!mac_enforce_socket) 2801100979Srwatson return (0); 2802100979Srwatson 2803101933Srwatson MAC_CHECK(check_socket_deliver, socket, &socket->so_label, mbuf, 2804101933Srwatson &mbuf->m_pkthdr.label); 2805101933Srwatson 2806100979Srwatson return (error); 2807100979Srwatson} 2808100979Srwatson 2809100979Srwatsonint 2810101933Srwatsonmac_check_socket_listen(struct ucred *cred, struct socket *socket) 2811100979Srwatson{ 2812100979Srwatson int error; 2813100979Srwatson 2814100979Srwatson if (!mac_enforce_socket) 2815100979Srwatson return (0); 2816100979Srwatson 2817101933Srwatson MAC_CHECK(check_socket_listen, cred, socket, &socket->so_label); 2818100979Srwatson return (error); 2819100979Srwatson} 2820100979Srwatson 2821100979Srwatsonstatic int 2822100979Srwatsonmac_check_socket_relabel(struct ucred *cred, struct socket *socket, 2823100979Srwatson struct label *newlabel) 2824100979Srwatson{ 2825100979Srwatson int error; 2826100979Srwatson 2827100979Srwatson MAC_CHECK(check_socket_relabel, cred, socket, &socket->so_label, 2828100979Srwatson newlabel); 2829100979Srwatson 2830100979Srwatson return (error); 2831100979Srwatson} 2832100979Srwatson 2833100979Srwatsonint 2834100979Srwatsonmac_check_socket_visible(struct ucred *cred, struct socket *socket) 2835100979Srwatson{ 2836100979Srwatson int error; 2837100979Srwatson 2838100979Srwatson if (!mac_enforce_socket) 2839100979Srwatson return (0); 2840100979Srwatson 2841100979Srwatson MAC_CHECK(check_socket_visible, cred, socket, &socket->so_label); 2842100979Srwatson 2843100979Srwatson return (error); 2844100979Srwatson} 2845100979Srwatson 2846100979Srwatsonint 2847100979Srwatsonmac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, 2848100979Srwatson struct ifnet *ifnet) 2849100979Srwatson{ 2850100979Srwatson struct mac label; 2851100979Srwatson int error; 2852100979Srwatson 2853100979Srwatson error = mac_externalize(&ifnet->if_label, &label); 2854100979Srwatson if (error) 2855100979Srwatson return (error); 2856100979Srwatson 2857100979Srwatson return (copyout(&label, ifr->ifr_ifru.ifru_data, sizeof(label))); 2858100979Srwatson} 2859100979Srwatson 2860100979Srwatsonint 2861100979Srwatsonmac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, 2862100979Srwatson struct ifnet *ifnet) 2863100979Srwatson{ 2864100979Srwatson struct mac newlabel; 2865100979Srwatson struct label intlabel; 2866100979Srwatson int error; 2867100979Srwatson 2868100979Srwatson error = copyin(ifr->ifr_ifru.ifru_data, &newlabel, sizeof(newlabel)); 2869100979Srwatson if (error) 2870100979Srwatson return (error); 2871100979Srwatson 2872100979Srwatson error = mac_internalize(&intlabel, &newlabel); 2873100979Srwatson if (error) 2874100979Srwatson return (error); 2875100979Srwatson 2876100979Srwatson /* 2877100979Srwatson * XXX: Note that this is a redundant privilege check, since 2878100979Srwatson * policies impose this check themselves if required by the 2879100979Srwatson * policy. Eventually, this should go away. 2880100979Srwatson */ 2881100979Srwatson error = suser_cred(cred, 0); 2882100979Srwatson if (error) 2883100979Srwatson goto out; 2884100979Srwatson 2885100979Srwatson MAC_CHECK(check_ifnet_relabel, cred, ifnet, &ifnet->if_label, 2886100979Srwatson &intlabel); 2887100979Srwatson if (error) 2888100979Srwatson goto out; 2889100979Srwatson 2890100979Srwatson MAC_PERFORM(relabel_ifnet, cred, ifnet, &ifnet->if_label, &intlabel); 2891100979Srwatson 2892100979Srwatsonout: 2893100979Srwatson mac_destroy_temp(&intlabel); 2894100979Srwatson return (error); 2895100979Srwatson} 2896100979Srwatson 2897100979Srwatsonvoid 2898100979Srwatsonmac_create_devfs_vnode(struct devfs_dirent *de, struct vnode *vp) 2899100979Srwatson{ 2900100979Srwatson 2901100979Srwatson MAC_PERFORM(create_devfs_vnode, de, &de->de_label, vp, &vp->v_label); 2902100979Srwatson} 2903100979Srwatson 2904100979Srwatsonvoid 2905100979Srwatsonmac_create_devfs_device(dev_t dev, struct devfs_dirent *de) 2906100979Srwatson{ 2907100979Srwatson 2908100979Srwatson MAC_PERFORM(create_devfs_device, dev, de, &de->de_label); 2909100979Srwatson} 2910100979Srwatson 2911100979Srwatsonstatic int 2912100979Srwatsonmac_stdcreatevnode_ea(struct vnode *vp) 2913100979Srwatson{ 2914100979Srwatson int error; 2915100979Srwatson 2916100979Srwatson MAC_CHECK(stdcreatevnode_ea, vp, &vp->v_label); 2917100979Srwatson 2918100979Srwatson return (error); 2919100979Srwatson} 2920100979Srwatson 2921100979Srwatsonvoid 2922100979Srwatsonmac_create_devfs_directory(char *dirname, int dirnamelen, 2923100979Srwatson struct devfs_dirent *de) 2924100979Srwatson{ 2925100979Srwatson 2926100979Srwatson MAC_PERFORM(create_devfs_directory, dirname, dirnamelen, de, 2927100979Srwatson &de->de_label); 2928100979Srwatson} 2929100979Srwatson 2930100979Srwatson/* 2931100979Srwatson * When a new vnode is created, this call will initialize its label. 2932100979Srwatson */ 2933100979Srwatsonvoid 2934100979Srwatsonmac_create_vnode(struct ucred *cred, struct vnode *parent, 2935100979Srwatson struct vnode *child) 2936100979Srwatson{ 2937100979Srwatson int error; 2938100979Srwatson 2939100979Srwatson ASSERT_VOP_LOCKED(parent, "mac_create_vnode"); 2940100979Srwatson ASSERT_VOP_LOCKED(child, "mac_create_vnode"); 2941100979Srwatson 2942100979Srwatson error = vn_refreshlabel(parent, cred); 2943100979Srwatson if (error) { 2944100979Srwatson printf("mac_create_vnode: vn_refreshlabel returned %d\n", 2945100979Srwatson error); 2946100979Srwatson printf("mac_create_vnode: using old vnode label\n"); 2947100979Srwatson } 2948100979Srwatson 2949100979Srwatson MAC_PERFORM(create_vnode, cred, parent, &parent->v_label, child, 2950100979Srwatson &child->v_label); 2951100979Srwatson} 2952100979Srwatson 2953100979Srwatsonint 2954100979Srwatsonmac_setsockopt_label_set(struct ucred *cred, struct socket *so, 2955100979Srwatson struct mac *extmac) 2956100979Srwatson{ 2957100979Srwatson struct label intlabel; 2958100979Srwatson int error; 2959100979Srwatson 2960100979Srwatson error = mac_internalize(&intlabel, extmac); 2961100979Srwatson if (error) 2962100979Srwatson return (error); 2963100979Srwatson 2964100979Srwatson mac_check_socket_relabel(cred, so, &intlabel); 2965100979Srwatson if (error) { 2966100979Srwatson mac_destroy_temp(&intlabel); 2967100979Srwatson return (error); 2968100979Srwatson } 2969100979Srwatson 2970100979Srwatson mac_relabel_socket(cred, so, &intlabel); 2971100979Srwatson 2972100979Srwatson mac_destroy_temp(&intlabel); 2973100979Srwatson return (0); 2974100979Srwatson} 2975100979Srwatson 2976100979Srwatsonint 2977100979Srwatsonmac_pipe_label_set(struct ucred *cred, struct pipe *pipe, struct label *label) 2978100979Srwatson{ 2979100979Srwatson int error; 2980100979Srwatson 2981104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2982104269Srwatson 2983100979Srwatson error = mac_check_pipe_relabel(cred, pipe, label); 2984100979Srwatson if (error) 2985100979Srwatson return (error); 2986100979Srwatson 2987100979Srwatson mac_relabel_pipe(cred, pipe, label); 2988100979Srwatson 2989100979Srwatson return (0); 2990100979Srwatson} 2991100979Srwatson 2992100979Srwatsonint 2993100979Srwatsonmac_getsockopt_label_get(struct ucred *cred, struct socket *so, 2994100979Srwatson struct mac *extmac) 2995100979Srwatson{ 2996100979Srwatson 2997100979Srwatson return (mac_externalize(&so->so_label, extmac)); 2998100979Srwatson} 2999100979Srwatson 3000100979Srwatsonint 3001100979Srwatsonmac_getsockopt_peerlabel_get(struct ucred *cred, struct socket *so, 3002100979Srwatson struct mac *extmac) 3003100979Srwatson{ 3004100979Srwatson 3005100979Srwatson return (mac_externalize(&so->so_peerlabel, extmac)); 3006100979Srwatson} 3007100979Srwatson 3008100979Srwatson/* 3009100979Srwatson * Implementation of VOP_SETLABEL() that relies on extended attributes 3010100979Srwatson * to store label data. Can be referenced by filesystems supporting 3011100979Srwatson * extended attributes. 3012100979Srwatson */ 3013100979Srwatsonint 3014100979Srwatsonvop_stdsetlabel_ea(struct vop_setlabel_args *ap) 3015100979Srwatson{ 3016100979Srwatson struct vnode *vp = ap->a_vp; 3017100979Srwatson struct label *intlabel = ap->a_label; 3018100979Srwatson struct mac extmac; 3019100979Srwatson int error; 3020100979Srwatson 3021100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdsetlabel_ea"); 3022100979Srwatson 3023100979Srwatson /* 3024100979Srwatson * XXX: Eventually call out to EA check/set calls here. 3025100979Srwatson * Be particularly careful to avoid race conditions, 3026100979Srwatson * consistency problems, and stability problems when 3027100979Srwatson * dealing with multiple EAs. In particular, we require 3028100979Srwatson * the ability to write multiple EAs on the same file in 3029100979Srwatson * a single transaction, which the current EA interface 3030100979Srwatson * does not provide. 3031100979Srwatson */ 3032100979Srwatson 3033100979Srwatson error = mac_externalize(intlabel, &extmac); 3034100979Srwatson if (error) 3035100979Srwatson return (error); 3036100979Srwatson 3037100979Srwatson error = vn_extattr_set(vp, IO_NODELOCKED, 3038100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 3039100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 3040100979Srwatson if (error) 3041100979Srwatson return (error); 3042100979Srwatson 3043100979Srwatson mac_relabel_vnode(ap->a_cred, vp, intlabel); 3044100979Srwatson 3045101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 3046100979Srwatson 3047100979Srwatson return (0); 3048100979Srwatson} 3049100979Srwatson 3050100979Srwatsonstatic int 3051100979Srwatsonvn_setlabel(struct vnode *vp, struct label *intlabel, struct ucred *cred) 3052100979Srwatson{ 3053100979Srwatson int error; 3054100979Srwatson 3055100979Srwatson if (vp->v_mount == NULL) { 3056100979Srwatson /* printf("vn_setlabel: null v_mount\n"); */ 3057103314Snjl if (vp->v_type != VNON) 3058103314Snjl printf("vn_setlabel: null v_mount with non-VNON\n"); 3059100979Srwatson return (EBADF); 3060100979Srwatson } 3061100979Srwatson 3062100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) 3063100979Srwatson return (EOPNOTSUPP); 3064100979Srwatson 3065100979Srwatson /* 3066100979Srwatson * Multi-phase commit. First check the policies to confirm the 3067100979Srwatson * change is OK. Then commit via the filesystem. Finally, 3068100979Srwatson * update the actual vnode label. Question: maybe the filesystem 3069100979Srwatson * should update the vnode at the end as part of VOP_SETLABEL()? 3070100979Srwatson */ 3071100979Srwatson error = mac_check_vnode_relabel(cred, vp, intlabel); 3072100979Srwatson if (error) 3073100979Srwatson return (error); 3074100979Srwatson 3075100979Srwatson /* 3076100979Srwatson * VADMIN provides the opportunity for the filesystem to make 3077100979Srwatson * decisions about who is and is not able to modify labels 3078100979Srwatson * and protections on files. This might not be right. We can't 3079100979Srwatson * assume VOP_SETLABEL() will do it, because we might implement 3080100979Srwatson * that as part of vop_stdsetlabel_ea(). 3081100979Srwatson */ 3082100979Srwatson error = VOP_ACCESS(vp, VADMIN, cred, curthread); 3083100979Srwatson if (error) 3084100979Srwatson return (error); 3085100979Srwatson 3086100979Srwatson error = VOP_SETLABEL(vp, intlabel, cred, curthread); 3087100979Srwatson if (error) 3088100979Srwatson return (error); 3089100979Srwatson 3090100979Srwatson return (0); 3091100979Srwatson} 3092100979Srwatson 3093100979Srwatson/* 3094100979Srwatson * MPSAFE 3095100979Srwatson */ 3096100979Srwatsonint 3097100894Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 3098100894Srwatson{ 3099100979Srwatson struct mac extmac; 3100100979Srwatson int error; 3101100894Srwatson 3102100979Srwatson error = mac_externalize(&td->td_ucred->cr_label, &extmac); 3103100979Srwatson if (error == 0) 3104100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3105100979Srwatson 3106100979Srwatson return (error); 3107100979Srwatson} 3108100979Srwatson 3109100979Srwatson/* 3110100979Srwatson * MPSAFE 3111100979Srwatson */ 3112100979Srwatsonint 3113100979Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3114100979Srwatson{ 3115100979Srwatson struct ucred *newcred, *oldcred; 3116100979Srwatson struct proc *p; 3117100979Srwatson struct mac extmac; 3118100979Srwatson struct label intlabel; 3119100979Srwatson int error; 3120100979Srwatson 3121100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3122100979Srwatson if (error) 3123100979Srwatson return (error); 3124100979Srwatson 3125100979Srwatson error = mac_internalize(&intlabel, &extmac); 3126100979Srwatson if (error) 3127100979Srwatson return (error); 3128100979Srwatson 3129100979Srwatson newcred = crget(); 3130100979Srwatson 3131100979Srwatson p = td->td_proc; 3132100979Srwatson PROC_LOCK(p); 3133100979Srwatson oldcred = p->p_ucred; 3134100979Srwatson 3135100979Srwatson error = mac_check_cred_relabel(oldcred, &intlabel); 3136100979Srwatson if (error) { 3137100979Srwatson PROC_UNLOCK(p); 3138100979Srwatson mac_destroy_temp(&intlabel); 3139100979Srwatson crfree(newcred); 3140100979Srwatson return (error); 3141100979Srwatson } 3142100979Srwatson 3143100979Srwatson setsugid(p); 3144100979Srwatson crcopy(newcred, oldcred); 3145100979Srwatson mac_relabel_cred(newcred, &intlabel); 3146102136Srwatson p->p_ucred = newcred; 3147100979Srwatson 3148102136Srwatson /* 3149102136Srwatson * Grab additional reference for use while revoking mmaps, prior 3150102136Srwatson * to releasing the proc lock and sharing the cred. 3151102136Srwatson */ 3152102136Srwatson crhold(newcred); 3153100979Srwatson PROC_UNLOCK(p); 3154102136Srwatson 3155103135Srwatson mtx_lock(&Giant); 3156102136Srwatson mac_cred_mmapped_drop_perms(td, newcred); 3157103135Srwatson mtx_unlock(&Giant); 3158102136Srwatson 3159102136Srwatson crfree(newcred); /* Free revocation reference. */ 3160100979Srwatson crfree(oldcred); 3161100979Srwatson mac_destroy_temp(&intlabel); 3162100979Srwatson return (0); 3163100979Srwatson} 3164100979Srwatson 3165100979Srwatson/* 3166100979Srwatson * MPSAFE 3167100979Srwatson */ 3168100979Srwatsonint 3169100979Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3170100979Srwatson{ 3171100979Srwatson struct file *fp; 3172100979Srwatson struct mac extmac; 3173100979Srwatson struct vnode *vp; 3174100979Srwatson struct pipe *pipe; 3175100979Srwatson int error; 3176100979Srwatson 3177100979Srwatson mtx_lock(&Giant); 3178100979Srwatson 3179100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3180100979Srwatson if (error) 3181100979Srwatson goto out; 3182100979Srwatson 3183100979Srwatson switch (fp->f_type) { 3184100979Srwatson case DTYPE_FIFO: 3185100979Srwatson case DTYPE_VNODE: 3186100979Srwatson vp = (struct vnode *)fp->f_data; 3187100979Srwatson 3188100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3189100979Srwatson error = vn_refreshlabel(vp, td->td_ucred); 3190100979Srwatson if (error == 0) 3191100979Srwatson error = mac_externalize(&vp->v_label, &extmac); 3192100979Srwatson VOP_UNLOCK(vp, 0, td); 3193100979Srwatson break; 3194100979Srwatson case DTYPE_PIPE: 3195100979Srwatson pipe = (struct pipe *)fp->f_data; 3196100979Srwatson error = mac_externalize(pipe->pipe_label, &extmac); 3197100979Srwatson break; 3198100979Srwatson default: 3199100979Srwatson error = EINVAL; 3200100979Srwatson } 3201100979Srwatson 3202100979Srwatson if (error == 0) 3203100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3204100979Srwatson 3205100979Srwatson fdrop(fp, td); 3206100979Srwatson 3207100979Srwatsonout: 3208100979Srwatson mtx_unlock(&Giant); 3209100979Srwatson return (error); 3210100979Srwatson} 3211100979Srwatson 3212100979Srwatson/* 3213100979Srwatson * MPSAFE 3214100979Srwatson */ 3215100979Srwatsonint 3216100979Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3217100979Srwatson{ 3218100979Srwatson struct nameidata nd; 3219100979Srwatson struct mac extmac; 3220100979Srwatson int error; 3221100979Srwatson 3222100979Srwatson mtx_lock(&Giant); 3223100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3224100979Srwatson SCARG(uap, path_p), td); 3225100979Srwatson error = namei(&nd); 3226100979Srwatson if (error) 3227100979Srwatson goto out; 3228100979Srwatson 3229100979Srwatson error = vn_refreshlabel(nd.ni_vp, td->td_ucred); 3230100979Srwatson if (error == 0) 3231100979Srwatson error = mac_externalize(&nd.ni_vp->v_label, &extmac); 3232100979Srwatson NDFREE(&nd, 0); 3233100979Srwatson if (error) 3234100979Srwatson goto out; 3235100979Srwatson 3236100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3237100979Srwatson 3238100979Srwatsonout: 3239100979Srwatson mtx_unlock(&Giant); 3240100979Srwatson return (error); 3241100979Srwatson} 3242100979Srwatson 3243100979Srwatson/* 3244100979Srwatson * MPSAFE 3245100979Srwatson */ 3246100979Srwatsonint 3247100979Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3248100979Srwatson{ 3249100979Srwatson struct file *fp; 3250100979Srwatson struct mac extmac; 3251100979Srwatson struct label intlabel; 3252100979Srwatson struct mount *mp; 3253100979Srwatson struct vnode *vp; 3254100979Srwatson struct pipe *pipe; 3255100979Srwatson int error; 3256100979Srwatson 3257100979Srwatson mtx_lock(&Giant); 3258100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3259100979Srwatson if (error) 3260100979Srwatson goto out1; 3261100979Srwatson 3262100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3263100979Srwatson if (error) 3264100979Srwatson goto out2; 3265100979Srwatson 3266100979Srwatson error = mac_internalize(&intlabel, &extmac); 3267100979Srwatson if (error) 3268100979Srwatson goto out2; 3269100979Srwatson 3270100979Srwatson switch (fp->f_type) { 3271100979Srwatson case DTYPE_FIFO: 3272100979Srwatson case DTYPE_VNODE: 3273100979Srwatson vp = (struct vnode *)fp->f_data; 3274100979Srwatson error = vn_start_write(vp, &mp, V_WAIT | PCATCH); 3275100979Srwatson if (error != 0) 3276100979Srwatson break; 3277100979Srwatson 3278100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3279100979Srwatson error = vn_setlabel(vp, &intlabel, td->td_ucred); 3280100979Srwatson VOP_UNLOCK(vp, 0, td); 3281100979Srwatson vn_finished_write(mp); 3282100979Srwatson mac_destroy_temp(&intlabel); 3283100979Srwatson break; 3284100979Srwatson case DTYPE_PIPE: 3285100979Srwatson pipe = (struct pipe *)fp->f_data; 3286104269Srwatson PIPE_LOCK(pipe); 3287100979Srwatson error = mac_pipe_label_set(td->td_ucred, pipe, &intlabel); 3288104269Srwatson PIPE_UNLOCK(pipe); 3289100979Srwatson break; 3290100979Srwatson default: 3291100979Srwatson error = EINVAL; 3292100979Srwatson } 3293100979Srwatson 3294100979Srwatsonout2: 3295100979Srwatson fdrop(fp, td); 3296100979Srwatsonout1: 3297100979Srwatson mtx_unlock(&Giant); 3298100979Srwatson return (error); 3299100979Srwatson} 3300100979Srwatson 3301100979Srwatson/* 3302100979Srwatson * MPSAFE 3303100979Srwatson */ 3304100979Srwatsonint 3305100979Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3306100979Srwatson{ 3307100979Srwatson struct nameidata nd; 3308100979Srwatson struct mac extmac; 3309100979Srwatson struct label intlabel; 3310100979Srwatson struct mount *mp; 3311100979Srwatson int error; 3312100979Srwatson 3313100979Srwatson mtx_lock(&Giant); 3314100979Srwatson 3315100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3316100979Srwatson if (error) 3317100979Srwatson goto out; 3318100979Srwatson 3319100979Srwatson error = mac_internalize(&intlabel, &extmac); 3320100979Srwatson if (error) 3321100979Srwatson goto out; 3322100979Srwatson 3323100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3324100979Srwatson SCARG(uap, path_p), td); 3325100979Srwatson error = namei(&nd); 3326100979Srwatson if (error) 3327100979Srwatson goto out2; 3328100979Srwatson error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH); 3329100979Srwatson if (error) 3330100979Srwatson goto out2; 3331100979Srwatson 3332100979Srwatson error = vn_setlabel(nd.ni_vp, &intlabel, td->td_ucred); 3333100979Srwatson 3334100979Srwatson vn_finished_write(mp); 3335100979Srwatsonout2: 3336100979Srwatson mac_destroy_temp(&intlabel); 3337100979Srwatson NDFREE(&nd, 0); 3338100979Srwatsonout: 3339100979Srwatson mtx_unlock(&Giant); 3340100979Srwatson return (error); 3341100979Srwatson} 3342100979Srwatson 3343102123Srwatsonint 3344102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3345102123Srwatson{ 3346102123Srwatson struct mac_policy_conf *mpc; 3347102123Srwatson char target[MAC_MAX_POLICY_NAME]; 3348102123Srwatson int error; 3349102123Srwatson 3350102123Srwatson error = copyinstr(SCARG(uap, policy), target, sizeof(target), NULL); 3351102123Srwatson if (error) 3352102123Srwatson return (error); 3353102123Srwatson 3354102123Srwatson error = ENOSYS; 3355102123Srwatson MAC_POLICY_LIST_BUSY(); 3356102123Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { 3357102123Srwatson if (strcmp(mpc->mpc_name, target) == 0 && 3358102123Srwatson mpc->mpc_ops->mpo_syscall != NULL) { 3359102123Srwatson error = mpc->mpc_ops->mpo_syscall(td, 3360102123Srwatson SCARG(uap, call), SCARG(uap, arg)); 3361102123Srwatson goto out; 3362102123Srwatson } 3363102123Srwatson } 3364102123Srwatson 3365102123Srwatsonout: 3366102123Srwatson MAC_POLICY_LIST_UNBUSY(); 3367102123Srwatson return (error); 3368102123Srwatson} 3369102123Srwatson 3370100979SrwatsonSYSINIT(mac, SI_SUB_MAC, SI_ORDER_FIRST, mac_init, NULL); 3371100979SrwatsonSYSINIT(mac_late, SI_SUB_MAC_LATE, SI_ORDER_FIRST, mac_late_init, NULL); 3372100979Srwatson 3373100979Srwatson#else /* !MAC */ 3374100979Srwatson 3375100979Srwatsonint 3376100979Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 3377100979Srwatson{ 3378100979Srwatson 3379100894Srwatson return (ENOSYS); 3380100894Srwatson} 3381100894Srwatson 3382100894Srwatsonint 3383100894Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3384100894Srwatson{ 3385100894Srwatson 3386100894Srwatson return (ENOSYS); 3387100894Srwatson} 3388100894Srwatson 3389100894Srwatsonint 3390100894Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3391100894Srwatson{ 3392100894Srwatson 3393100894Srwatson return (ENOSYS); 3394100894Srwatson} 3395100894Srwatson 3396100894Srwatsonint 3397100894Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3398100894Srwatson{ 3399100894Srwatson 3400100894Srwatson return (ENOSYS); 3401100894Srwatson} 3402100894Srwatson 3403100894Srwatsonint 3404100894Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3405100894Srwatson{ 3406100894Srwatson 3407100894Srwatson return (ENOSYS); 3408100894Srwatson} 3409100894Srwatson 3410100894Srwatsonint 3411100894Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3412100894Srwatson{ 3413100894Srwatson 3414100894Srwatson return (ENOSYS); 3415100894Srwatson} 3416100979Srwatson 3417102123Srwatsonint 3418102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3419102123Srwatson{ 3420102123Srwatson 3421102123Srwatson return (ENOSYS); 3422102123Srwatson} 3423102123Srwatson 3424100979Srwatson#endif /* !MAC */ 3425