mac_cred.c revision 104533
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 104533 2002-10-05 18:40:10Z 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; 522104533Srwatson case MAC_CREATE_DEVFS_SYMLINK: 523104533Srwatson mpc->mpc_ops->mpo_create_devfs_symlink = 524104533Srwatson mpe->mpe_function; 525104533Srwatson break; 526100979Srwatson case MAC_CREATE_DEVFS_VNODE: 527100979Srwatson mpc->mpc_ops->mpo_create_devfs_vnode = 528100979Srwatson mpe->mpe_function; 529100979Srwatson break; 530100979Srwatson case MAC_STDCREATEVNODE_EA: 531100979Srwatson mpc->mpc_ops->mpo_stdcreatevnode_ea = 532100979Srwatson mpe->mpe_function; 533100979Srwatson break; 534100979Srwatson case MAC_CREATE_VNODE: 535100979Srwatson mpc->mpc_ops->mpo_create_vnode = 536100979Srwatson mpe->mpe_function; 537100979Srwatson break; 538100979Srwatson case MAC_CREATE_MOUNT: 539100979Srwatson mpc->mpc_ops->mpo_create_mount = 540100979Srwatson mpe->mpe_function; 541100979Srwatson break; 542100979Srwatson case MAC_CREATE_ROOT_MOUNT: 543100979Srwatson mpc->mpc_ops->mpo_create_root_mount = 544100979Srwatson mpe->mpe_function; 545100979Srwatson break; 546100979Srwatson case MAC_RELABEL_VNODE: 547100979Srwatson mpc->mpc_ops->mpo_relabel_vnode = 548100979Srwatson mpe->mpe_function; 549100979Srwatson break; 550100979Srwatson case MAC_UPDATE_DEVFSDIRENT: 551100979Srwatson mpc->mpc_ops->mpo_update_devfsdirent = 552100979Srwatson mpe->mpe_function; 553100979Srwatson break; 554100979Srwatson case MAC_UPDATE_PROCFSVNODE: 555100979Srwatson mpc->mpc_ops->mpo_update_procfsvnode = 556100979Srwatson mpe->mpe_function; 557100979Srwatson break; 558100979Srwatson case MAC_UPDATE_VNODE_FROM_EXTATTR: 559100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_extattr = 560100979Srwatson mpe->mpe_function; 561100979Srwatson break; 562100979Srwatson case MAC_UPDATE_VNODE_FROM_EXTERNALIZED: 563100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_externalized = 564100979Srwatson mpe->mpe_function; 565100979Srwatson break; 566100979Srwatson case MAC_UPDATE_VNODE_FROM_MOUNT: 567100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_mount = 568100979Srwatson mpe->mpe_function; 569100979Srwatson break; 570100979Srwatson case MAC_CREATE_MBUF_FROM_SOCKET: 571100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_socket = 572100979Srwatson mpe->mpe_function; 573100979Srwatson break; 574100979Srwatson case MAC_CREATE_PIPE: 575100979Srwatson mpc->mpc_ops->mpo_create_pipe = 576100979Srwatson mpe->mpe_function; 577100979Srwatson break; 578100979Srwatson case MAC_CREATE_SOCKET: 579100979Srwatson mpc->mpc_ops->mpo_create_socket = 580100979Srwatson mpe->mpe_function; 581100979Srwatson break; 582100979Srwatson case MAC_CREATE_SOCKET_FROM_SOCKET: 583100979Srwatson mpc->mpc_ops->mpo_create_socket_from_socket = 584100979Srwatson mpe->mpe_function; 585100979Srwatson break; 586100979Srwatson case MAC_RELABEL_PIPE: 587100979Srwatson mpc->mpc_ops->mpo_relabel_pipe = 588100979Srwatson mpe->mpe_function; 589100979Srwatson break; 590100979Srwatson case MAC_RELABEL_SOCKET: 591100979Srwatson mpc->mpc_ops->mpo_relabel_socket = 592100979Srwatson mpe->mpe_function; 593100979Srwatson break; 594100979Srwatson case MAC_SET_SOCKET_PEER_FROM_MBUF: 595100979Srwatson mpc->mpc_ops->mpo_set_socket_peer_from_mbuf = 596100979Srwatson mpe->mpe_function; 597100979Srwatson break; 598100979Srwatson case MAC_SET_SOCKET_PEER_FROM_SOCKET: 599100979Srwatson mpc->mpc_ops->mpo_set_socket_peer_from_socket = 600100979Srwatson mpe->mpe_function; 601100979Srwatson break; 602100979Srwatson case MAC_CREATE_BPFDESC: 603100979Srwatson mpc->mpc_ops->mpo_create_bpfdesc = 604100979Srwatson mpe->mpe_function; 605100979Srwatson break; 606100979Srwatson case MAC_CREATE_DATAGRAM_FROM_IPQ: 607100979Srwatson mpc->mpc_ops->mpo_create_datagram_from_ipq = 608100979Srwatson mpe->mpe_function; 609100979Srwatson break; 610100979Srwatson case MAC_CREATE_FRAGMENT: 611100979Srwatson mpc->mpc_ops->mpo_create_fragment = 612100979Srwatson mpe->mpe_function; 613100979Srwatson break; 614100979Srwatson case MAC_CREATE_IFNET: 615100979Srwatson mpc->mpc_ops->mpo_create_ifnet = 616100979Srwatson mpe->mpe_function; 617100979Srwatson break; 618100979Srwatson case MAC_CREATE_IPQ: 619100979Srwatson mpc->mpc_ops->mpo_create_ipq = 620100979Srwatson mpe->mpe_function; 621100979Srwatson break; 622100979Srwatson case MAC_CREATE_MBUF_FROM_MBUF: 623100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_mbuf = 624100979Srwatson mpe->mpe_function; 625100979Srwatson break; 626100979Srwatson case MAC_CREATE_MBUF_LINKLAYER: 627100979Srwatson mpc->mpc_ops->mpo_create_mbuf_linklayer = 628100979Srwatson mpe->mpe_function; 629100979Srwatson break; 630100979Srwatson case MAC_CREATE_MBUF_FROM_BPFDESC: 631100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_bpfdesc = 632100979Srwatson mpe->mpe_function; 633100979Srwatson break; 634100979Srwatson case MAC_CREATE_MBUF_FROM_IFNET: 635100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_ifnet = 636100979Srwatson mpe->mpe_function; 637100979Srwatson break; 638100979Srwatson case MAC_CREATE_MBUF_MULTICAST_ENCAP: 639100979Srwatson mpc->mpc_ops->mpo_create_mbuf_multicast_encap = 640100979Srwatson mpe->mpe_function; 641100979Srwatson break; 642100979Srwatson case MAC_CREATE_MBUF_NETLAYER: 643100979Srwatson mpc->mpc_ops->mpo_create_mbuf_netlayer = 644100979Srwatson mpe->mpe_function; 645100979Srwatson break; 646100979Srwatson case MAC_FRAGMENT_MATCH: 647100979Srwatson mpc->mpc_ops->mpo_fragment_match = 648100979Srwatson mpe->mpe_function; 649100979Srwatson break; 650100979Srwatson case MAC_RELABEL_IFNET: 651100979Srwatson mpc->mpc_ops->mpo_relabel_ifnet = 652100979Srwatson mpe->mpe_function; 653100979Srwatson break; 654100979Srwatson case MAC_UPDATE_IPQ: 655100979Srwatson mpc->mpc_ops->mpo_update_ipq = 656100979Srwatson mpe->mpe_function; 657100979Srwatson break; 658100979Srwatson case MAC_CREATE_CRED: 659100979Srwatson mpc->mpc_ops->mpo_create_cred = 660100979Srwatson mpe->mpe_function; 661100979Srwatson break; 662100979Srwatson case MAC_EXECVE_TRANSITION: 663100979Srwatson mpc->mpc_ops->mpo_execve_transition = 664100979Srwatson mpe->mpe_function; 665100979Srwatson break; 666100979Srwatson case MAC_EXECVE_WILL_TRANSITION: 667100979Srwatson mpc->mpc_ops->mpo_execve_will_transition = 668100979Srwatson mpe->mpe_function; 669100979Srwatson break; 670100979Srwatson case MAC_CREATE_PROC0: 671104518Srwatson mpc->mpc_ops->mpo_create_proc0 = 672104518Srwatson mpe->mpe_function; 673100979Srwatson break; 674100979Srwatson case MAC_CREATE_PROC1: 675104518Srwatson mpc->mpc_ops->mpo_create_proc1 = 676104518Srwatson mpe->mpe_function; 677100979Srwatson break; 678100979Srwatson case MAC_RELABEL_CRED: 679100979Srwatson mpc->mpc_ops->mpo_relabel_cred = 680100979Srwatson mpe->mpe_function; 681100979Srwatson break; 682104338Srwatson case MAC_THREAD_USERRET: 683104338Srwatson mpc->mpc_ops->mpo_thread_userret = 684104338Srwatson mpe->mpe_function; 685104338Srwatson break; 686100979Srwatson case MAC_CHECK_BPFDESC_RECEIVE: 687100979Srwatson mpc->mpc_ops->mpo_check_bpfdesc_receive = 688100979Srwatson mpe->mpe_function; 689100979Srwatson break; 690100979Srwatson case MAC_CHECK_CRED_RELABEL: 691100979Srwatson mpc->mpc_ops->mpo_check_cred_relabel = 692100979Srwatson mpe->mpe_function; 693100979Srwatson break; 694100979Srwatson case MAC_CHECK_CRED_VISIBLE: 695100979Srwatson mpc->mpc_ops->mpo_check_cred_visible = 696100979Srwatson mpe->mpe_function; 697100979Srwatson break; 698100979Srwatson case MAC_CHECK_IFNET_RELABEL: 699100979Srwatson mpc->mpc_ops->mpo_check_ifnet_relabel = 700100979Srwatson mpe->mpe_function; 701100979Srwatson break; 702100979Srwatson case MAC_CHECK_IFNET_TRANSMIT: 703100979Srwatson mpc->mpc_ops->mpo_check_ifnet_transmit = 704100979Srwatson mpe->mpe_function; 705100979Srwatson break; 706100979Srwatson case MAC_CHECK_MOUNT_STAT: 707100979Srwatson mpc->mpc_ops->mpo_check_mount_stat = 708100979Srwatson mpe->mpe_function; 709100979Srwatson break; 710100979Srwatson case MAC_CHECK_PIPE_IOCTL: 711100979Srwatson mpc->mpc_ops->mpo_check_pipe_ioctl = 712100979Srwatson mpe->mpe_function; 713100979Srwatson break; 714102115Srwatson case MAC_CHECK_PIPE_POLL: 715102115Srwatson mpc->mpc_ops->mpo_check_pipe_poll = 716100979Srwatson mpe->mpe_function; 717100979Srwatson break; 718102115Srwatson case MAC_CHECK_PIPE_READ: 719102115Srwatson mpc->mpc_ops->mpo_check_pipe_read = 720102115Srwatson mpe->mpe_function; 721102115Srwatson break; 722100979Srwatson case MAC_CHECK_PIPE_RELABEL: 723100979Srwatson mpc->mpc_ops->mpo_check_pipe_relabel = 724100979Srwatson mpe->mpe_function; 725100979Srwatson break; 726102115Srwatson case MAC_CHECK_PIPE_STAT: 727102115Srwatson mpc->mpc_ops->mpo_check_pipe_stat = 728102115Srwatson mpe->mpe_function; 729102115Srwatson break; 730102115Srwatson case MAC_CHECK_PIPE_WRITE: 731102115Srwatson mpc->mpc_ops->mpo_check_pipe_write = 732102115Srwatson mpe->mpe_function; 733102115Srwatson break; 734100979Srwatson case MAC_CHECK_PROC_DEBUG: 735100979Srwatson mpc->mpc_ops->mpo_check_proc_debug = 736100979Srwatson mpe->mpe_function; 737100979Srwatson break; 738100979Srwatson case MAC_CHECK_PROC_SCHED: 739100979Srwatson mpc->mpc_ops->mpo_check_proc_sched = 740100979Srwatson mpe->mpe_function; 741100979Srwatson break; 742100979Srwatson case MAC_CHECK_PROC_SIGNAL: 743100979Srwatson mpc->mpc_ops->mpo_check_proc_signal = 744100979Srwatson mpe->mpe_function; 745100979Srwatson break; 746100979Srwatson case MAC_CHECK_SOCKET_BIND: 747100979Srwatson mpc->mpc_ops->mpo_check_socket_bind = 748100979Srwatson mpe->mpe_function; 749100979Srwatson break; 750100979Srwatson case MAC_CHECK_SOCKET_CONNECT: 751100979Srwatson mpc->mpc_ops->mpo_check_socket_connect = 752100979Srwatson mpe->mpe_function; 753100979Srwatson break; 754101933Srwatson case MAC_CHECK_SOCKET_DELIVER: 755101933Srwatson mpc->mpc_ops->mpo_check_socket_deliver = 756101933Srwatson mpe->mpe_function; 757101933Srwatson break; 758100979Srwatson case MAC_CHECK_SOCKET_LISTEN: 759100979Srwatson mpc->mpc_ops->mpo_check_socket_listen = 760100979Srwatson mpe->mpe_function; 761100979Srwatson break; 762100979Srwatson case MAC_CHECK_SOCKET_RELABEL: 763100979Srwatson mpc->mpc_ops->mpo_check_socket_relabel = 764100979Srwatson mpe->mpe_function; 765100979Srwatson break; 766100979Srwatson case MAC_CHECK_SOCKET_VISIBLE: 767100979Srwatson mpc->mpc_ops->mpo_check_socket_visible = 768100979Srwatson mpe->mpe_function; 769100979Srwatson break; 770100979Srwatson case MAC_CHECK_VNODE_ACCESS: 771100979Srwatson mpc->mpc_ops->mpo_check_vnode_access = 772100979Srwatson mpe->mpe_function; 773100979Srwatson break; 774100979Srwatson case MAC_CHECK_VNODE_CHDIR: 775100979Srwatson mpc->mpc_ops->mpo_check_vnode_chdir = 776100979Srwatson mpe->mpe_function; 777100979Srwatson break; 778100979Srwatson case MAC_CHECK_VNODE_CHROOT: 779100979Srwatson mpc->mpc_ops->mpo_check_vnode_chroot = 780100979Srwatson mpe->mpe_function; 781100979Srwatson break; 782100979Srwatson case MAC_CHECK_VNODE_CREATE: 783100979Srwatson mpc->mpc_ops->mpo_check_vnode_create = 784100979Srwatson mpe->mpe_function; 785100979Srwatson break; 786100979Srwatson case MAC_CHECK_VNODE_DELETE: 787100979Srwatson mpc->mpc_ops->mpo_check_vnode_delete = 788100979Srwatson mpe->mpe_function; 789100979Srwatson break; 790100979Srwatson case MAC_CHECK_VNODE_DELETEACL: 791100979Srwatson mpc->mpc_ops->mpo_check_vnode_deleteacl = 792100979Srwatson mpe->mpe_function; 793100979Srwatson break; 794100979Srwatson case MAC_CHECK_VNODE_EXEC: 795100979Srwatson mpc->mpc_ops->mpo_check_vnode_exec = 796100979Srwatson mpe->mpe_function; 797100979Srwatson break; 798100979Srwatson case MAC_CHECK_VNODE_GETACL: 799100979Srwatson mpc->mpc_ops->mpo_check_vnode_getacl = 800100979Srwatson mpe->mpe_function; 801100979Srwatson break; 802100979Srwatson case MAC_CHECK_VNODE_GETEXTATTR: 803100979Srwatson mpc->mpc_ops->mpo_check_vnode_getextattr = 804100979Srwatson mpe->mpe_function; 805100979Srwatson break; 806104529Srwatson case MAC_CHECK_VNODE_LINK: 807104529Srwatson mpc->mpc_ops->mpo_check_vnode_link = 808104529Srwatson mpe->mpe_function; 809104529Srwatson break; 810100979Srwatson case MAC_CHECK_VNODE_LOOKUP: 811100979Srwatson mpc->mpc_ops->mpo_check_vnode_lookup = 812100979Srwatson mpe->mpe_function; 813100979Srwatson break; 814100979Srwatson case MAC_CHECK_VNODE_MMAP_PERMS: 815100979Srwatson mpc->mpc_ops->mpo_check_vnode_mmap_perms = 816100979Srwatson mpe->mpe_function; 817100979Srwatson break; 818100979Srwatson case MAC_CHECK_VNODE_OPEN: 819100979Srwatson mpc->mpc_ops->mpo_check_vnode_open = 820100979Srwatson mpe->mpe_function; 821100979Srwatson break; 822102112Srwatson case MAC_CHECK_VNODE_POLL: 823102112Srwatson mpc->mpc_ops->mpo_check_vnode_poll = 824102112Srwatson mpe->mpe_function; 825102112Srwatson break; 826102112Srwatson case MAC_CHECK_VNODE_READ: 827102112Srwatson mpc->mpc_ops->mpo_check_vnode_read = 828102112Srwatson mpe->mpe_function; 829102112Srwatson break; 830100979Srwatson case MAC_CHECK_VNODE_READDIR: 831100979Srwatson mpc->mpc_ops->mpo_check_vnode_readdir = 832100979Srwatson mpe->mpe_function; 833100979Srwatson break; 834100979Srwatson case MAC_CHECK_VNODE_READLINK: 835100979Srwatson mpc->mpc_ops->mpo_check_vnode_readlink = 836100979Srwatson mpe->mpe_function; 837100979Srwatson break; 838100979Srwatson case MAC_CHECK_VNODE_RELABEL: 839100979Srwatson mpc->mpc_ops->mpo_check_vnode_relabel = 840100979Srwatson mpe->mpe_function; 841100979Srwatson break; 842100979Srwatson case MAC_CHECK_VNODE_RENAME_FROM: 843100979Srwatson mpc->mpc_ops->mpo_check_vnode_rename_from = 844100979Srwatson mpe->mpe_function; 845100979Srwatson break; 846100979Srwatson case MAC_CHECK_VNODE_RENAME_TO: 847100979Srwatson mpc->mpc_ops->mpo_check_vnode_rename_to = 848100979Srwatson mpe->mpe_function; 849100979Srwatson break; 850100979Srwatson case MAC_CHECK_VNODE_REVOKE: 851100979Srwatson mpc->mpc_ops->mpo_check_vnode_revoke = 852100979Srwatson mpe->mpe_function; 853100979Srwatson break; 854100979Srwatson case MAC_CHECK_VNODE_SETACL: 855100979Srwatson mpc->mpc_ops->mpo_check_vnode_setacl = 856100979Srwatson mpe->mpe_function; 857100979Srwatson break; 858100979Srwatson case MAC_CHECK_VNODE_SETEXTATTR: 859100979Srwatson mpc->mpc_ops->mpo_check_vnode_setextattr = 860100979Srwatson mpe->mpe_function; 861100979Srwatson break; 862100979Srwatson case MAC_CHECK_VNODE_SETFLAGS: 863100979Srwatson mpc->mpc_ops->mpo_check_vnode_setflags = 864100979Srwatson mpe->mpe_function; 865100979Srwatson break; 866100979Srwatson case MAC_CHECK_VNODE_SETMODE: 867100979Srwatson mpc->mpc_ops->mpo_check_vnode_setmode = 868100979Srwatson mpe->mpe_function; 869100979Srwatson break; 870100979Srwatson case MAC_CHECK_VNODE_SETOWNER: 871100979Srwatson mpc->mpc_ops->mpo_check_vnode_setowner = 872100979Srwatson mpe->mpe_function; 873100979Srwatson break; 874100979Srwatson case MAC_CHECK_VNODE_SETUTIMES: 875100979Srwatson mpc->mpc_ops->mpo_check_vnode_setutimes = 876100979Srwatson mpe->mpe_function; 877100979Srwatson break; 878100979Srwatson case MAC_CHECK_VNODE_STAT: 879100979Srwatson mpc->mpc_ops->mpo_check_vnode_stat = 880100979Srwatson mpe->mpe_function; 881100979Srwatson break; 882102112Srwatson case MAC_CHECK_VNODE_WRITE: 883102112Srwatson mpc->mpc_ops->mpo_check_vnode_write = 884102112Srwatson mpe->mpe_function; 885102112Srwatson break; 886100979Srwatson/* 887100979Srwatson default: 888100979Srwatson printf("MAC policy `%s': unknown operation %d\n", 889100979Srwatson mpc->mpc_name, mpe->mpe_constant); 890100979Srwatson return (EINVAL); 891100979Srwatson*/ 892100979Srwatson } 893100979Srwatson } 894100979Srwatson MAC_POLICY_LIST_LOCK(); 895100979Srwatson if (mac_policy_list_busy > 0) { 896100979Srwatson MAC_POLICY_LIST_UNLOCK(); 897100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 898100979Srwatson mpc->mpc_ops = NULL; 899100979Srwatson return (EBUSY); 900100979Srwatson } 901100979Srwatson LIST_FOREACH(tmpc, &mac_policy_list, mpc_list) { 902100979Srwatson if (strcmp(tmpc->mpc_name, mpc->mpc_name) == 0) { 903100979Srwatson MAC_POLICY_LIST_UNLOCK(); 904100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 905100979Srwatson mpc->mpc_ops = NULL; 906100979Srwatson return (EEXIST); 907100979Srwatson } 908100979Srwatson } 909100979Srwatson if (mpc->mpc_field_off != NULL) { 910100979Srwatson slot = ffs(mac_policy_offsets_free); 911100979Srwatson if (slot == 0) { 912100979Srwatson MAC_POLICY_LIST_UNLOCK(); 913100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 914100979Srwatson mpc->mpc_ops = NULL; 915100979Srwatson return (ENOMEM); 916100979Srwatson } 917100979Srwatson slot--; 918100979Srwatson mac_policy_offsets_free &= ~(1 << slot); 919100979Srwatson *mpc->mpc_field_off = slot; 920100979Srwatson } 921100979Srwatson mpc->mpc_runtime_flags |= MPC_RUNTIME_FLAG_REGISTERED; 922100979Srwatson LIST_INSERT_HEAD(&mac_policy_list, mpc, mpc_list); 923100979Srwatson 924100979Srwatson /* Per-policy initialization. */ 925100979Srwatson if (mpc->mpc_ops->mpo_init != NULL) 926100979Srwatson (*(mpc->mpc_ops->mpo_init))(mpc); 927100979Srwatson MAC_POLICY_LIST_UNLOCK(); 928100979Srwatson 929100979Srwatson printf("Security policy loaded: %s (%s)\n", mpc->mpc_fullname, 930100979Srwatson mpc->mpc_name); 931100979Srwatson 932100979Srwatson return (0); 933100979Srwatson} 934100979Srwatson 935100979Srwatsonstatic int 936100979Srwatsonmac_policy_unregister(struct mac_policy_conf *mpc) 937100979Srwatson{ 938100979Srwatson 939104520Srwatson /* 940104520Srwatson * If we fail the load, we may get a request to unload. Check 941104520Srwatson * to see if we did the run-time registration, and if not, 942104520Srwatson * silently succeed. 943104520Srwatson */ 944104520Srwatson MAC_POLICY_LIST_LOCK(); 945104520Srwatson if ((mpc->mpc_runtime_flags & MPC_RUNTIME_FLAG_REGISTERED) == 0) { 946104520Srwatson MAC_POLICY_LIST_UNLOCK(); 947104520Srwatson return (0); 948104520Srwatson } 949100979Srwatson#if 0 950100979Srwatson /* 951100979Srwatson * Don't allow unloading modules with private data. 952100979Srwatson */ 953104520Srwatson if (mpc->mpc_field_off != NULL) { 954104520Srwatson MAC_POLICY_LIST_UNLOCK(); 955100979Srwatson return (EBUSY); 956104520Srwatson } 957100979Srwatson#endif 958104520Srwatson /* 959104520Srwatson * Only allow the unload to proceed if the module is unloadable 960104520Srwatson * by its own definition. 961104520Srwatson */ 962104520Srwatson if ((mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_UNLOADOK) == 0) { 963104520Srwatson MAC_POLICY_LIST_UNLOCK(); 964100979Srwatson return (EBUSY); 965104520Srwatson } 966104520Srwatson /* 967104520Srwatson * Right now, we EBUSY if the list is in use. In the future, 968104520Srwatson * for reliability reasons, we might want to sleep and wakeup 969104520Srwatson * later to try again. 970104520Srwatson */ 971100979Srwatson if (mac_policy_list_busy > 0) { 972100979Srwatson MAC_POLICY_LIST_UNLOCK(); 973100979Srwatson return (EBUSY); 974100979Srwatson } 975100979Srwatson if (mpc->mpc_ops->mpo_destroy != NULL) 976100979Srwatson (*(mpc->mpc_ops->mpo_destroy))(mpc); 977100979Srwatson 978100979Srwatson LIST_REMOVE(mpc, mpc_list); 979100979Srwatson MAC_POLICY_LIST_UNLOCK(); 980100979Srwatson 981100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 982100979Srwatson mpc->mpc_ops = NULL; 983100979Srwatson 984100979Srwatson printf("Security policy unload: %s (%s)\n", mpc->mpc_fullname, 985100979Srwatson mpc->mpc_name); 986100979Srwatson 987100979Srwatson return (0); 988100979Srwatson} 989100979Srwatson 990100979Srwatson/* 991100979Srwatson * Define an error value precedence, and given two arguments, selects the 992100979Srwatson * value with the higher precedence. 993100979Srwatson */ 994100979Srwatsonstatic int 995100979Srwatsonerror_select(int error1, int error2) 996100979Srwatson{ 997100979Srwatson 998100979Srwatson /* Certain decision-making errors take top priority. */ 999100979Srwatson if (error1 == EDEADLK || error2 == EDEADLK) 1000100979Srwatson return (EDEADLK); 1001100979Srwatson 1002100979Srwatson /* Invalid arguments should be reported where possible. */ 1003100979Srwatson if (error1 == EINVAL || error2 == EINVAL) 1004100979Srwatson return (EINVAL); 1005100979Srwatson 1006100979Srwatson /* Precedence goes to "visibility", with both process and file. */ 1007100979Srwatson if (error1 == ESRCH || error2 == ESRCH) 1008100979Srwatson return (ESRCH); 1009100979Srwatson 1010100979Srwatson if (error1 == ENOENT || error2 == ENOENT) 1011100979Srwatson return (ENOENT); 1012100979Srwatson 1013100979Srwatson /* Precedence goes to DAC/MAC protections. */ 1014100979Srwatson if (error1 == EACCES || error2 == EACCES) 1015100979Srwatson return (EACCES); 1016100979Srwatson 1017100979Srwatson /* Precedence goes to privilege. */ 1018100979Srwatson if (error1 == EPERM || error2 == EPERM) 1019100979Srwatson return (EPERM); 1020100979Srwatson 1021100979Srwatson /* Precedence goes to error over success; otherwise, arbitrary. */ 1022100979Srwatson if (error1 != 0) 1023100979Srwatson return (error1); 1024100979Srwatson return (error2); 1025100979Srwatson} 1026100979Srwatson 1027104521Srwatsonstatic void 1028104521Srwatsonmac_init_label(struct label *label) 1029104521Srwatson{ 1030104521Srwatson 1031104521Srwatson bzero(label, sizeof(*label)); 1032104521Srwatson label->l_flags = MAC_FLAG_INITIALIZED; 1033104521Srwatson} 1034104521Srwatson 1035104521Srwatsonstatic void 1036104521Srwatsonmac_destroy_label(struct label *label) 1037104521Srwatson{ 1038104521Srwatson 1039104521Srwatson KASSERT(label->l_flags & MAC_FLAG_INITIALIZED, 1040104521Srwatson ("destroying uninitialized label")); 1041104521Srwatson 1042104521Srwatson bzero(label, sizeof(*label)); 1043104521Srwatson /* implicit: label->l_flags &= ~MAC_FLAG_INITIALIZED; */ 1044104521Srwatson} 1045104521Srwatson 1046104521Srwatsonstatic void 1047104521Srwatsonmac_init_structmac(struct mac *mac) 1048104521Srwatson{ 1049104521Srwatson 1050104521Srwatson bzero(mac, sizeof(*mac)); 1051104521Srwatson mac->m_macflags = MAC_FLAG_INITIALIZED; 1052104521Srwatson} 1053104521Srwatson 1054100979Srwatsonvoid 1055104527Srwatsonmac_init_bpfdesc(struct bpf_d *bpf_d) 1056104521Srwatson{ 1057104521Srwatson 1058104527Srwatson mac_init_label(&bpf_d->bd_label); 1059104527Srwatson MAC_PERFORM(init_bpfdesc_label, &bpf_d->bd_label); 1060104521Srwatson#ifdef MAC_DEBUG 1061104527Srwatson atomic_add_int(&nmacbpfdescs, 1); 1062104521Srwatson#endif 1063104521Srwatson} 1064104521Srwatson 1065104521Srwatsonvoid 1066104521Srwatsonmac_init_cred(struct ucred *cr) 1067104521Srwatson{ 1068104521Srwatson 1069104521Srwatson mac_init_label(&cr->cr_label); 1070104521Srwatson MAC_PERFORM(init_cred_label, &cr->cr_label); 1071104521Srwatson#ifdef MAC_DEBUG 1072104521Srwatson atomic_add_int(&nmaccreds, 1); 1073104521Srwatson#endif 1074104521Srwatson} 1075104521Srwatson 1076104521Srwatsonvoid 1077104527Srwatsonmac_init_devfsdirent(struct devfs_dirent *de) 1078104521Srwatson{ 1079104521Srwatson 1080104527Srwatson mac_init_label(&de->de_label); 1081104527Srwatson MAC_PERFORM(init_devfsdirent_label, &de->de_label); 1082104521Srwatson#ifdef MAC_DEBUG 1083104527Srwatson atomic_add_int(&nmacdevfsdirents, 1); 1084104521Srwatson#endif 1085104521Srwatson} 1086104521Srwatson 1087104521Srwatsonvoid 1088104521Srwatsonmac_init_ifnet(struct ifnet *ifp) 1089104521Srwatson{ 1090104521Srwatson 1091104521Srwatson mac_init_label(&ifp->if_label); 1092104521Srwatson MAC_PERFORM(init_ifnet_label, &ifp->if_label); 1093104521Srwatson#ifdef MAC_DEBUG 1094104521Srwatson atomic_add_int(&nmacifnets, 1); 1095104521Srwatson#endif 1096104521Srwatson} 1097104521Srwatson 1098104521Srwatsonvoid 1099104527Srwatsonmac_init_ipq(struct ipq *ipq) 1100104521Srwatson{ 1101104521Srwatson 1102104527Srwatson mac_init_label(&ipq->ipq_label); 1103104527Srwatson MAC_PERFORM(init_ipq_label, &ipq->ipq_label); 1104104521Srwatson#ifdef MAC_DEBUG 1105104527Srwatson atomic_add_int(&nmacipqs, 1); 1106104521Srwatson#endif 1107104521Srwatson} 1108104521Srwatson 1109104527Srwatsonint 1110104527Srwatsonmac_init_mbuf(struct mbuf *m, int flag) 1111104527Srwatson{ 1112104528Srwatson int error; 1113104528Srwatson 1114104527Srwatson KASSERT(m->m_flags & M_PKTHDR, ("mac_init_mbuf on non-header mbuf")); 1115104527Srwatson 1116104527Srwatson mac_init_label(&m->m_pkthdr.label); 1117104527Srwatson 1118104528Srwatson MAC_CHECK(init_mbuf_label, &m->m_pkthdr.label, flag); 1119104528Srwatson if (error) { 1120104528Srwatson MAC_PERFORM(destroy_mbuf_label, &m->m_pkthdr.label); 1121104528Srwatson mac_destroy_label(&m->m_pkthdr.label); 1122104528Srwatson } 1123104528Srwatson 1124104527Srwatson#ifdef MAC_DEBUG 1125104528Srwatson if (error == 0) 1126104528Srwatson atomic_add_int(&nmacmbufs, 1); 1127104527Srwatson#endif 1128104528Srwatson return (error); 1129104527Srwatson} 1130104527Srwatson 1131104521Srwatsonvoid 1132104527Srwatsonmac_init_mount(struct mount *mp) 1133104521Srwatson{ 1134104521Srwatson 1135104527Srwatson mac_init_label(&mp->mnt_mntlabel); 1136104527Srwatson mac_init_label(&mp->mnt_fslabel); 1137104527Srwatson MAC_PERFORM(init_mount_label, &mp->mnt_mntlabel); 1138104527Srwatson MAC_PERFORM(init_mount_fs_label, &mp->mnt_fslabel); 1139104521Srwatson#ifdef MAC_DEBUG 1140104527Srwatson atomic_add_int(&nmacmounts, 1); 1141104521Srwatson#endif 1142104521Srwatson} 1143104521Srwatson 1144104521Srwatsonvoid 1145104527Srwatsonmac_init_pipe(struct pipe *pipe) 1146104521Srwatson{ 1147104527Srwatson struct label *label; 1148104521Srwatson 1149104527Srwatson label = malloc(sizeof(struct label), M_MACPIPELABEL, M_ZERO|M_WAITOK); 1150104527Srwatson mac_init_label(label); 1151104527Srwatson pipe->pipe_label = label; 1152104527Srwatson pipe->pipe_peer->pipe_label = label; 1153104527Srwatson MAC_PERFORM(init_pipe_label, pipe->pipe_label); 1154104521Srwatson#ifdef MAC_DEBUG 1155104527Srwatson atomic_add_int(&nmacpipes, 1); 1156104521Srwatson#endif 1157104521Srwatson} 1158104521Srwatson 1159104521Srwatsonvoid 1160104521Srwatsonmac_init_socket(struct socket *socket) 1161104521Srwatson{ 1162104521Srwatson 1163104521Srwatson mac_init_label(&socket->so_label); 1164104521Srwatson mac_init_label(&socket->so_peerlabel); 1165104521Srwatson MAC_PERFORM(init_socket_label, &socket->so_label); 1166104521Srwatson MAC_PERFORM(init_socket_peer_label, &socket->so_peerlabel); 1167104521Srwatson#ifdef MAC_DEBUG 1168104521Srwatson atomic_add_int(&nmacsockets, 1); 1169104521Srwatson#endif 1170104521Srwatson} 1171104521Srwatson 1172104527Srwatsonstatic void 1173104527Srwatsonmac_init_temp(struct label *label) 1174104521Srwatson{ 1175104521Srwatson 1176104527Srwatson mac_init_label(label); 1177104527Srwatson MAC_PERFORM(init_temp_label, label); 1178104521Srwatson#ifdef MAC_DEBUG 1179104527Srwatson atomic_add_int(&nmactemp, 1); 1180104521Srwatson#endif 1181104521Srwatson} 1182104521Srwatson 1183104521Srwatsonvoid 1184104527Srwatsonmac_init_vnode(struct vnode *vp) 1185104521Srwatson{ 1186104521Srwatson 1187104527Srwatson mac_init_label(&vp->v_label); 1188104527Srwatson MAC_PERFORM(init_vnode_label, &vp->v_label); 1189104521Srwatson#ifdef MAC_DEBUG 1190104527Srwatson atomic_add_int(&nmacvnodes, 1); 1191104521Srwatson#endif 1192104521Srwatson} 1193104521Srwatson 1194104521Srwatsonvoid 1195104527Srwatsonmac_destroy_bpfdesc(struct bpf_d *bpf_d) 1196104521Srwatson{ 1197104521Srwatson 1198104527Srwatson MAC_PERFORM(destroy_bpfdesc_label, &bpf_d->bd_label); 1199104527Srwatson mac_destroy_label(&bpf_d->bd_label); 1200104521Srwatson#ifdef MAC_DEBUG 1201104527Srwatson atomic_subtract_int(&nmacbpfdescs, 1); 1202104521Srwatson#endif 1203104521Srwatson} 1204104521Srwatson 1205104521Srwatsonvoid 1206104527Srwatsonmac_destroy_cred(struct ucred *cr) 1207104521Srwatson{ 1208104521Srwatson 1209104527Srwatson MAC_PERFORM(destroy_cred_label, &cr->cr_label); 1210104527Srwatson mac_destroy_label(&cr->cr_label); 1211104521Srwatson#ifdef MAC_DEBUG 1212104527Srwatson atomic_subtract_int(&nmaccreds, 1); 1213104521Srwatson#endif 1214104521Srwatson} 1215104521Srwatson 1216104521Srwatsonvoid 1217104527Srwatsonmac_destroy_devfsdirent(struct devfs_dirent *de) 1218104521Srwatson{ 1219104521Srwatson 1220104527Srwatson MAC_PERFORM(destroy_devfsdirent_label, &de->de_label); 1221104527Srwatson mac_destroy_label(&de->de_label); 1222104521Srwatson#ifdef MAC_DEBUG 1223104527Srwatson atomic_subtract_int(&nmacdevfsdirents, 1); 1224104521Srwatson#endif 1225104521Srwatson} 1226104521Srwatson 1227104521Srwatsonvoid 1228104527Srwatsonmac_destroy_ifnet(struct ifnet *ifp) 1229104521Srwatson{ 1230104521Srwatson 1231104527Srwatson MAC_PERFORM(destroy_ifnet_label, &ifp->if_label); 1232104527Srwatson mac_destroy_label(&ifp->if_label); 1233104521Srwatson#ifdef MAC_DEBUG 1234104527Srwatson atomic_subtract_int(&nmacifnets, 1); 1235104521Srwatson#endif 1236104521Srwatson} 1237104521Srwatson 1238104521Srwatsonvoid 1239104527Srwatsonmac_destroy_ipq(struct ipq *ipq) 1240104521Srwatson{ 1241104521Srwatson 1242104527Srwatson MAC_PERFORM(destroy_ipq_label, &ipq->ipq_label); 1243104527Srwatson mac_destroy_label(&ipq->ipq_label); 1244104521Srwatson#ifdef MAC_DEBUG 1245104527Srwatson atomic_subtract_int(&nmacipqs, 1); 1246104521Srwatson#endif 1247104521Srwatson} 1248104521Srwatson 1249104527Srwatsonvoid 1250104527Srwatsonmac_destroy_mbuf(struct mbuf *m) 1251104521Srwatson{ 1252104521Srwatson 1253104527Srwatson MAC_PERFORM(destroy_mbuf_label, &m->m_pkthdr.label); 1254104527Srwatson mac_destroy_label(&m->m_pkthdr.label); 1255104521Srwatson#ifdef MAC_DEBUG 1256104527Srwatson atomic_subtract_int(&nmacmbufs, 1); 1257104521Srwatson#endif 1258104521Srwatson} 1259104521Srwatson 1260104527Srwatsonvoid 1261104527Srwatsonmac_destroy_mount(struct mount *mp) 1262104521Srwatson{ 1263104521Srwatson 1264104527Srwatson MAC_PERFORM(destroy_mount_label, &mp->mnt_mntlabel); 1265104527Srwatson MAC_PERFORM(destroy_mount_fs_label, &mp->mnt_fslabel); 1266104527Srwatson mac_destroy_label(&mp->mnt_fslabel); 1267104527Srwatson mac_destroy_label(&mp->mnt_mntlabel); 1268104521Srwatson#ifdef MAC_DEBUG 1269104527Srwatson atomic_subtract_int(&nmacmounts, 1); 1270104521Srwatson#endif 1271104521Srwatson} 1272104521Srwatson 1273104521Srwatsonvoid 1274104527Srwatsonmac_destroy_pipe(struct pipe *pipe) 1275104521Srwatson{ 1276104521Srwatson 1277104527Srwatson MAC_PERFORM(destroy_pipe_label, pipe->pipe_label); 1278104527Srwatson mac_destroy_label(pipe->pipe_label); 1279104527Srwatson free(pipe->pipe_label, M_MACPIPELABEL); 1280104521Srwatson#ifdef MAC_DEBUG 1281104527Srwatson atomic_subtract_int(&nmacpipes, 1); 1282104521Srwatson#endif 1283104521Srwatson} 1284104521Srwatson 1285104521Srwatsonvoid 1286104527Srwatsonmac_destroy_socket(struct socket *socket) 1287104521Srwatson{ 1288104521Srwatson 1289104527Srwatson MAC_PERFORM(destroy_socket_label, &socket->so_label); 1290104527Srwatson MAC_PERFORM(destroy_socket_peer_label, &socket->so_peerlabel); 1291104527Srwatson mac_destroy_label(&socket->so_label); 1292104527Srwatson mac_destroy_label(&socket->so_peerlabel); 1293104521Srwatson#ifdef MAC_DEBUG 1294104527Srwatson atomic_subtract_int(&nmacsockets, 1); 1295104521Srwatson#endif 1296104521Srwatson} 1297104521Srwatson 1298104527Srwatsonstatic void 1299104527Srwatsonmac_destroy_temp(struct label *label) 1300104521Srwatson{ 1301104521Srwatson 1302104527Srwatson MAC_PERFORM(destroy_temp_label, label); 1303104527Srwatson mac_destroy_label(label); 1304104521Srwatson#ifdef MAC_DEBUG 1305104527Srwatson atomic_subtract_int(&nmactemp, 1); 1306104521Srwatson#endif 1307104521Srwatson} 1308104521Srwatson 1309104521Srwatsonvoid 1310104527Srwatsonmac_destroy_vnode(struct vnode *vp) 1311104521Srwatson{ 1312104521Srwatson 1313104527Srwatson MAC_PERFORM(destroy_vnode_label, &vp->v_label); 1314104527Srwatson mac_destroy_label(&vp->v_label); 1315104521Srwatson#ifdef MAC_DEBUG 1316104527Srwatson atomic_subtract_int(&nmacvnodes, 1); 1317104521Srwatson#endif 1318104521Srwatson} 1319104521Srwatson 1320104522Srwatsonstatic int 1321104522Srwatsonmac_externalize(struct label *label, struct mac *mac) 1322104522Srwatson{ 1323104522Srwatson int error; 1324104522Srwatson 1325104522Srwatson mac_init_structmac(mac); 1326104522Srwatson MAC_CHECK(externalize, label, mac); 1327104522Srwatson 1328104522Srwatson return (error); 1329104522Srwatson} 1330104522Srwatson 1331104522Srwatsonstatic int 1332104522Srwatsonmac_internalize(struct label *label, struct mac *mac) 1333104522Srwatson{ 1334104522Srwatson int error; 1335104522Srwatson 1336104522Srwatson mac_init_temp(label); 1337104522Srwatson MAC_CHECK(internalize, label, mac); 1338104522Srwatson if (error) 1339104522Srwatson mac_destroy_temp(label); 1340104522Srwatson 1341104522Srwatson return (error); 1342104522Srwatson} 1343104522Srwatson 1344104522Srwatson/* 1345104522Srwatson * Initialize MAC label for the first kernel process, from which other 1346104522Srwatson * kernel processes and threads are spawned. 1347104522Srwatson */ 1348104521Srwatsonvoid 1349104522Srwatsonmac_create_proc0(struct ucred *cred) 1350104522Srwatson{ 1351104522Srwatson 1352104522Srwatson MAC_PERFORM(create_proc0, cred); 1353104522Srwatson} 1354104522Srwatson 1355104522Srwatson/* 1356104522Srwatson * Initialize MAC label for the first userland process, from which other 1357104522Srwatson * userland processes and threads are spawned. 1358104522Srwatson */ 1359104522Srwatsonvoid 1360104522Srwatsonmac_create_proc1(struct ucred *cred) 1361104522Srwatson{ 1362104522Srwatson 1363104522Srwatson MAC_PERFORM(create_proc1, cred); 1364104522Srwatson} 1365104522Srwatson 1366104522Srwatsonvoid 1367104522Srwatsonmac_thread_userret(struct thread *td) 1368104522Srwatson{ 1369104522Srwatson 1370104522Srwatson MAC_PERFORM(thread_userret, td); 1371104522Srwatson} 1372104522Srwatson 1373104522Srwatson/* 1374104522Srwatson * When a new process is created, its label must be initialized. Generally, 1375104522Srwatson * this involves inheritence from the parent process, modulo possible 1376104522Srwatson * deltas. This function allows that processing to take place. 1377104522Srwatson */ 1378104522Srwatsonvoid 1379104522Srwatsonmac_create_cred(struct ucred *parent_cred, struct ucred *child_cred) 1380104522Srwatson{ 1381104522Srwatson 1382104522Srwatson MAC_PERFORM(create_cred, parent_cred, child_cred); 1383104522Srwatson} 1384104522Srwatson 1385104522Srwatsonvoid 1386100979Srwatsonmac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp) 1387100979Srwatson{ 1388100979Srwatson 1389100979Srwatson MAC_PERFORM(update_devfsdirent, de, &de->de_label, vp, &vp->v_label); 1390100979Srwatson} 1391100979Srwatson 1392100979Srwatsonvoid 1393100979Srwatsonmac_update_procfsvnode(struct vnode *vp, struct ucred *cred) 1394100979Srwatson{ 1395100979Srwatson 1396100979Srwatson MAC_PERFORM(update_procfsvnode, vp, &vp->v_label, cred); 1397100979Srwatson} 1398100979Srwatson 1399100979Srwatson/* 1400100979Srwatson * Support callout for policies that manage their own externalization 1401100979Srwatson * using extended attributes. 1402100979Srwatson */ 1403100979Srwatsonstatic int 1404100979Srwatsonmac_update_vnode_from_extattr(struct vnode *vp, struct mount *mp) 1405100979Srwatson{ 1406100979Srwatson int error; 1407100979Srwatson 1408100979Srwatson MAC_CHECK(update_vnode_from_extattr, vp, &vp->v_label, mp, 1409100979Srwatson &mp->mnt_fslabel); 1410100979Srwatson 1411100979Srwatson return (error); 1412100979Srwatson} 1413100979Srwatson 1414100979Srwatson/* 1415100979Srwatson * Given an externalized mac label, internalize it and stamp it on a 1416100979Srwatson * vnode. 1417100979Srwatson */ 1418100979Srwatsonstatic int 1419100979Srwatsonmac_update_vnode_from_externalized(struct vnode *vp, struct mac *extmac) 1420100979Srwatson{ 1421100979Srwatson int error; 1422100979Srwatson 1423100979Srwatson MAC_CHECK(update_vnode_from_externalized, vp, &vp->v_label, extmac); 1424100979Srwatson 1425100979Srwatson return (error); 1426100979Srwatson} 1427100979Srwatson 1428100979Srwatson/* 1429100979Srwatson * Call out to individual policies to update the label in a vnode from 1430100979Srwatson * the mountpoint. 1431100979Srwatson */ 1432100979Srwatsonvoid 1433100979Srwatsonmac_update_vnode_from_mount(struct vnode *vp, struct mount *mp) 1434100979Srwatson{ 1435100979Srwatson 1436100979Srwatson MAC_PERFORM(update_vnode_from_mount, vp, &vp->v_label, mp, 1437100979Srwatson &mp->mnt_fslabel); 1438100979Srwatson 1439101308Sjeff ASSERT_VOP_LOCKED(vp, "mac_update_vnode_from_mount"); 1440100979Srwatson if (mac_cache_fslabel_in_vnode) 1441101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1442100979Srwatson} 1443100979Srwatson 1444100979Srwatson/* 1445100979Srwatson * Implementation of VOP_REFRESHLABEL() that relies on extended attributes 1446100979Srwatson * to store label data. Can be referenced by filesystems supporting 1447100979Srwatson * extended attributes. 1448100979Srwatson */ 1449100979Srwatsonint 1450100979Srwatsonvop_stdrefreshlabel_ea(struct vop_refreshlabel_args *ap) 1451100979Srwatson{ 1452100979Srwatson struct vnode *vp = ap->a_vp; 1453100979Srwatson struct mac extmac; 1454100979Srwatson int buflen, error; 1455100979Srwatson 1456100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdrefreshlabel_ea"); 1457100979Srwatson 1458100979Srwatson /* 1459100979Srwatson * Call out to external policies first. Order doesn't really 1460100979Srwatson * matter, as long as failure of one assures failure of all. 1461100979Srwatson */ 1462100979Srwatson error = mac_update_vnode_from_extattr(vp, vp->v_mount); 1463100979Srwatson if (error) 1464100979Srwatson return (error); 1465100979Srwatson 1466100979Srwatson buflen = sizeof(extmac); 1467100979Srwatson error = vn_extattr_get(vp, IO_NODELOCKED, 1468100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, &buflen, 1469100979Srwatson (char *)&extmac, curthread); 1470100979Srwatson switch (error) { 1471100979Srwatson case 0: 1472100979Srwatson /* Got it */ 1473100979Srwatson break; 1474100979Srwatson 1475100979Srwatson case ENOATTR: 1476100979Srwatson /* 1477100979Srwatson * Use the label from the mount point. 1478100979Srwatson */ 1479100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1480100979Srwatson return (0); 1481100979Srwatson 1482100979Srwatson case EOPNOTSUPP: 1483100979Srwatson default: 1484100979Srwatson /* Fail horribly. */ 1485100979Srwatson return (error); 1486100979Srwatson } 1487100979Srwatson 1488100979Srwatson if (buflen != sizeof(extmac)) 1489100979Srwatson error = EPERM; /* Fail very closed. */ 1490100979Srwatson if (error == 0) 1491100979Srwatson error = mac_update_vnode_from_externalized(vp, &extmac); 1492100979Srwatson if (error == 0) 1493101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1494100979Srwatson else { 1495100979Srwatson struct vattr va; 1496100979Srwatson 1497100979Srwatson printf("Corrupted label on %s", 1498100979Srwatson vp->v_mount->mnt_stat.f_mntonname); 1499100979Srwatson if (VOP_GETATTR(vp, &va, curthread->td_ucred, curthread) == 0) 1500100979Srwatson printf(" inum %ld", va.va_fileid); 1501104268Srwatson#ifdef MAC_DEBUG 1502100979Srwatson if (mac_debug_label_fallback) { 1503100979Srwatson printf(", falling back.\n"); 1504100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1505100979Srwatson error = 0; 1506100979Srwatson } else { 1507104268Srwatson#endif 1508100979Srwatson printf(".\n"); 1509100979Srwatson error = EPERM; 1510104268Srwatson#ifdef MAC_DEBUG 1511100979Srwatson } 1512104268Srwatson#endif 1513100979Srwatson } 1514100979Srwatson 1515100979Srwatson return (error); 1516100979Srwatson} 1517100979Srwatson 1518100979Srwatson/* 1519100979Srwatson * Make sure the vnode label is up-to-date. If EOPNOTSUPP, then we handle 1520100979Srwatson * the labeling activity outselves. Filesystems should be careful not 1521100979Srwatson * to change their minds regarding whether they support vop_refreshlabel() 1522100979Srwatson * for a vnode or not. Don't cache the vnode here, allow the file 1523100979Srwatson * system code to determine if it's safe to cache. If we update from 1524100979Srwatson * the mount, don't cache since a change to the mount label should affect 1525100979Srwatson * all vnodes. 1526100979Srwatson */ 1527100979Srwatsonstatic int 1528100979Srwatsonvn_refreshlabel(struct vnode *vp, struct ucred *cred) 1529100979Srwatson{ 1530100979Srwatson int error; 1531100979Srwatson 1532100979Srwatson ASSERT_VOP_LOCKED(vp, "vn_refreshlabel"); 1533100979Srwatson 1534100979Srwatson if (vp->v_mount == NULL) { 1535100979Srwatson/* 1536100979Srwatson Eventually, we probably want to special-case refreshing 1537100979Srwatson of deadfs vnodes, and if there's a lock-free race somewhere, 1538100979Srwatson that case might be handled here. 1539100979Srwatson 1540100979Srwatson mac_update_vnode_deadfs(vp); 1541100979Srwatson return (0); 1542100979Srwatson */ 1543100979Srwatson /* printf("vn_refreshlabel: null v_mount\n"); */ 1544103314Snjl if (vp->v_type != VNON) 1545100979Srwatson printf( 1546103314Snjl "vn_refreshlabel: null v_mount with non-VNON\n"); 1547100979Srwatson return (EBADF); 1548100979Srwatson } 1549100979Srwatson 1550101308Sjeff if (vp->v_vflag & VV_CACHEDLABEL) { 1551100979Srwatson mac_vnode_label_cache_hits++; 1552100979Srwatson return (0); 1553100979Srwatson } else 1554100979Srwatson mac_vnode_label_cache_misses++; 1555100979Srwatson 1556100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1557100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1558100979Srwatson return (0); 1559100979Srwatson } 1560100979Srwatson 1561100979Srwatson error = VOP_REFRESHLABEL(vp, cred, curthread); 1562100979Srwatson switch (error) { 1563100979Srwatson case EOPNOTSUPP: 1564100979Srwatson /* 1565100979Srwatson * If labels are not supported on this vnode, fall back to 1566100979Srwatson * the label in the mount and propagate it to the vnode. 1567100979Srwatson * There should probably be some sort of policy/flag/decision 1568100979Srwatson * about doing this. 1569100979Srwatson */ 1570100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1571100979Srwatson error = 0; 1572100979Srwatson default: 1573100979Srwatson return (error); 1574100979Srwatson } 1575100979Srwatson} 1576100979Srwatson 1577100979Srwatson/* 1578100979Srwatson * Helper function for file systems using the vop_std*_ea() calls. This 1579100979Srwatson * function must be called after EA service is available for the vnode, 1580100979Srwatson * but before it's hooked up to the namespace so that the node persists 1581100979Srwatson * if there's a crash, or before it can be accessed. On successful 1582100979Srwatson * commit of the label to disk (etc), do cache the label. 1583100979Srwatson */ 1584100979Srwatsonint 1585100979Srwatsonvop_stdcreatevnode_ea(struct vnode *dvp, struct vnode *tvp, struct ucred *cred) 1586100979Srwatson{ 1587100979Srwatson struct mac extmac; 1588100979Srwatson int error; 1589100979Srwatson 1590101308Sjeff ASSERT_VOP_LOCKED(tvp, "vop_stdcreatevnode_ea"); 1591100979Srwatson if ((dvp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1592100979Srwatson mac_update_vnode_from_mount(tvp, tvp->v_mount); 1593100979Srwatson } else { 1594100979Srwatson error = vn_refreshlabel(dvp, cred); 1595100979Srwatson if (error) 1596100979Srwatson return (error); 1597100979Srwatson 1598100979Srwatson /* 1599100979Srwatson * Stick the label in the vnode. Then try to write to 1600100979Srwatson * disk. If we fail, return a failure to abort the 1601100979Srwatson * create operation. Really, this failure shouldn't 1602100979Srwatson * happen except in fairly unusual circumstances (out 1603100979Srwatson * of disk, etc). 1604100979Srwatson */ 1605100979Srwatson mac_create_vnode(cred, dvp, tvp); 1606100979Srwatson 1607100979Srwatson error = mac_stdcreatevnode_ea(tvp); 1608100979Srwatson if (error) 1609100979Srwatson return (error); 1610100979Srwatson 1611100979Srwatson /* 1612100979Srwatson * XXX: Eventually this will go away and all policies will 1613100979Srwatson * directly manage their extended attributes. 1614100979Srwatson */ 1615100979Srwatson error = mac_externalize(&tvp->v_label, &extmac); 1616100979Srwatson if (error) 1617100979Srwatson return (error); 1618100979Srwatson 1619100979Srwatson error = vn_extattr_set(tvp, IO_NODELOCKED, 1620100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 1621100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 1622100979Srwatson if (error == 0) 1623101308Sjeff tvp->v_vflag |= VV_CACHEDLABEL; 1624100979Srwatson else { 1625100979Srwatson#if 0 1626100979Srwatson /* 1627100979Srwatson * In theory, we could have fall-back behavior here. 1628100979Srwatson * It would probably be incorrect. 1629100979Srwatson */ 1630100979Srwatson#endif 1631100979Srwatson return (error); 1632100979Srwatson } 1633100979Srwatson } 1634100979Srwatson 1635100979Srwatson return (0); 1636100979Srwatson} 1637100979Srwatson 1638100979Srwatsonvoid 1639100979Srwatsonmac_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp) 1640100979Srwatson{ 1641100979Srwatson int error; 1642100979Srwatson 1643100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_execve_transition"); 1644100979Srwatson 1645100979Srwatson error = vn_refreshlabel(vp, old); 1646100979Srwatson if (error) { 1647100979Srwatson printf("mac_execve_transition: vn_refreshlabel returned %d\n", 1648100979Srwatson error); 1649100979Srwatson printf("mac_execve_transition: using old vnode label\n"); 1650100979Srwatson } 1651100979Srwatson 1652100979Srwatson MAC_PERFORM(execve_transition, old, new, vp, &vp->v_label); 1653100979Srwatson} 1654100979Srwatson 1655100979Srwatsonint 1656100979Srwatsonmac_execve_will_transition(struct ucred *old, struct vnode *vp) 1657100979Srwatson{ 1658100979Srwatson int error, result; 1659100979Srwatson 1660100979Srwatson error = vn_refreshlabel(vp, old); 1661100979Srwatson if (error) 1662100979Srwatson return (error); 1663100979Srwatson 1664100979Srwatson result = 0; 1665100979Srwatson MAC_BOOLEAN(execve_will_transition, ||, old, vp, &vp->v_label); 1666100979Srwatson 1667100979Srwatson return (result); 1668100979Srwatson} 1669100979Srwatson 1670100979Srwatsonint 1671100979Srwatsonmac_check_vnode_access(struct ucred *cred, struct vnode *vp, int flags) 1672100979Srwatson{ 1673100979Srwatson int error; 1674100979Srwatson 1675100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_access"); 1676100979Srwatson 1677100979Srwatson if (!mac_enforce_fs) 1678100979Srwatson return (0); 1679100979Srwatson 1680100979Srwatson error = vn_refreshlabel(vp, cred); 1681100979Srwatson if (error) 1682100979Srwatson return (error); 1683100979Srwatson 1684100979Srwatson MAC_CHECK(check_vnode_access, cred, vp, &vp->v_label, flags); 1685100979Srwatson return (error); 1686100979Srwatson} 1687100979Srwatson 1688100979Srwatsonint 1689100979Srwatsonmac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp) 1690100979Srwatson{ 1691100979Srwatson int error; 1692100979Srwatson 1693100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chdir"); 1694100979Srwatson 1695100979Srwatson if (!mac_enforce_fs) 1696100979Srwatson return (0); 1697100979Srwatson 1698100979Srwatson error = vn_refreshlabel(dvp, cred); 1699100979Srwatson if (error) 1700100979Srwatson return (error); 1701100979Srwatson 1702100979Srwatson MAC_CHECK(check_vnode_chdir, cred, dvp, &dvp->v_label); 1703100979Srwatson return (error); 1704100979Srwatson} 1705100979Srwatson 1706100979Srwatsonint 1707100979Srwatsonmac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp) 1708100979Srwatson{ 1709100979Srwatson int error; 1710100979Srwatson 1711100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chroot"); 1712100979Srwatson 1713100979Srwatson if (!mac_enforce_fs) 1714100979Srwatson return (0); 1715100979Srwatson 1716100979Srwatson error = vn_refreshlabel(dvp, cred); 1717100979Srwatson if (error) 1718100979Srwatson return (error); 1719100979Srwatson 1720100979Srwatson MAC_CHECK(check_vnode_chroot, cred, dvp, &dvp->v_label); 1721100979Srwatson return (error); 1722100979Srwatson} 1723100979Srwatson 1724100979Srwatsonint 1725100979Srwatsonmac_check_vnode_create(struct ucred *cred, struct vnode *dvp, 1726100979Srwatson struct componentname *cnp, struct vattr *vap) 1727100979Srwatson{ 1728100979Srwatson int error; 1729100979Srwatson 1730100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_create"); 1731100979Srwatson 1732100979Srwatson if (!mac_enforce_fs) 1733100979Srwatson return (0); 1734100979Srwatson 1735100979Srwatson error = vn_refreshlabel(dvp, cred); 1736100979Srwatson if (error) 1737100979Srwatson return (error); 1738100979Srwatson 1739100979Srwatson MAC_CHECK(check_vnode_create, cred, dvp, &dvp->v_label, cnp, vap); 1740100979Srwatson return (error); 1741100979Srwatson} 1742100979Srwatson 1743100979Srwatsonint 1744100979Srwatsonmac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, struct vnode *vp, 1745100979Srwatson struct componentname *cnp) 1746100979Srwatson{ 1747100979Srwatson int error; 1748100979Srwatson 1749100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_delete"); 1750100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_delete"); 1751100979Srwatson 1752100979Srwatson if (!mac_enforce_fs) 1753100979Srwatson return (0); 1754100979Srwatson 1755100979Srwatson error = vn_refreshlabel(dvp, cred); 1756100979Srwatson if (error) 1757100979Srwatson return (error); 1758100979Srwatson error = vn_refreshlabel(vp, cred); 1759100979Srwatson if (error) 1760100979Srwatson return (error); 1761100979Srwatson 1762100979Srwatson MAC_CHECK(check_vnode_delete, cred, dvp, &dvp->v_label, vp, 1763100979Srwatson &vp->v_label, cnp); 1764100979Srwatson return (error); 1765100979Srwatson} 1766100979Srwatson 1767100979Srwatsonint 1768100979Srwatsonmac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 1769100979Srwatson acl_type_t type) 1770100979Srwatson{ 1771100979Srwatson int error; 1772100979Srwatson 1773100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_deleteacl"); 1774100979Srwatson 1775100979Srwatson if (!mac_enforce_fs) 1776100979Srwatson return (0); 1777100979Srwatson 1778100979Srwatson error = vn_refreshlabel(vp, cred); 1779100979Srwatson if (error) 1780100979Srwatson return (error); 1781100979Srwatson 1782100979Srwatson MAC_CHECK(check_vnode_deleteacl, cred, vp, &vp->v_label, type); 1783100979Srwatson return (error); 1784100979Srwatson} 1785100979Srwatson 1786100979Srwatsonint 1787100979Srwatsonmac_check_vnode_exec(struct ucred *cred, struct vnode *vp) 1788100979Srwatson{ 1789100979Srwatson int error; 1790100979Srwatson 1791102102Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_exec"); 1792102102Srwatson 1793100979Srwatson if (!mac_enforce_process && !mac_enforce_fs) 1794100979Srwatson return (0); 1795100979Srwatson 1796100979Srwatson error = vn_refreshlabel(vp, cred); 1797100979Srwatson if (error) 1798100979Srwatson return (error); 1799100979Srwatson MAC_CHECK(check_vnode_exec, cred, vp, &vp->v_label); 1800100979Srwatson 1801100979Srwatson return (error); 1802100979Srwatson} 1803100979Srwatson 1804100979Srwatsonint 1805100979Srwatsonmac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, acl_type_t type) 1806100979Srwatson{ 1807100979Srwatson int error; 1808100979Srwatson 1809100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getacl"); 1810100979Srwatson 1811100979Srwatson if (!mac_enforce_fs) 1812100979Srwatson return (0); 1813100979Srwatson 1814100979Srwatson error = vn_refreshlabel(vp, cred); 1815100979Srwatson if (error) 1816100979Srwatson return (error); 1817100979Srwatson 1818100979Srwatson MAC_CHECK(check_vnode_getacl, cred, vp, &vp->v_label, type); 1819100979Srwatson return (error); 1820100979Srwatson} 1821100979Srwatson 1822100979Srwatsonint 1823100979Srwatsonmac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 1824100979Srwatson int attrnamespace, const char *name, struct uio *uio) 1825100979Srwatson{ 1826100979Srwatson int error; 1827100979Srwatson 1828100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getextattr"); 1829100979Srwatson 1830100979Srwatson if (!mac_enforce_fs) 1831100979Srwatson return (0); 1832100979Srwatson 1833100979Srwatson error = vn_refreshlabel(vp, cred); 1834100979Srwatson if (error) 1835100979Srwatson return (error); 1836100979Srwatson 1837100979Srwatson MAC_CHECK(check_vnode_getextattr, cred, vp, &vp->v_label, 1838100979Srwatson attrnamespace, name, uio); 1839100979Srwatson return (error); 1840100979Srwatson} 1841100979Srwatson 1842100979Srwatsonint 1843104529Srwatsonmac_check_vnode_link(struct ucred *cred, struct vnode *dvp, 1844104529Srwatson struct vnode *vp, struct componentname *cnp) 1845104529Srwatson{ 1846104529Srwatson 1847104529Srwatson int error; 1848104529Srwatson 1849104529Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_link"); 1850104529Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_link"); 1851104529Srwatson 1852104529Srwatson if (!mac_enforce_fs) 1853104529Srwatson return (0); 1854104529Srwatson 1855104529Srwatson error = vn_refreshlabel(dvp, cred); 1856104529Srwatson if (error) 1857104529Srwatson return (error); 1858104529Srwatson 1859104529Srwatson error = vn_refreshlabel(vp, cred); 1860104529Srwatson if (error) 1861104529Srwatson return (error); 1862104529Srwatson 1863104529Srwatson MAC_CHECK(check_vnode_link, cred, dvp, &dvp->v_label, vp, 1864104529Srwatson &vp->v_label, cnp); 1865104529Srwatson return (error); 1866104529Srwatson} 1867104529Srwatson 1868104529Srwatsonint 1869100979Srwatsonmac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 1870100979Srwatson struct componentname *cnp) 1871100979Srwatson{ 1872100979Srwatson int error; 1873100979Srwatson 1874100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_lookup"); 1875100979Srwatson 1876100979Srwatson if (!mac_enforce_fs) 1877100979Srwatson return (0); 1878100979Srwatson 1879100979Srwatson error = vn_refreshlabel(dvp, cred); 1880100979Srwatson if (error) 1881100979Srwatson return (error); 1882100979Srwatson 1883100979Srwatson MAC_CHECK(check_vnode_lookup, cred, dvp, &dvp->v_label, cnp); 1884100979Srwatson return (error); 1885100979Srwatson} 1886100979Srwatson 1887100979Srwatsonvm_prot_t 1888100979Srwatsonmac_check_vnode_mmap_prot(struct ucred *cred, struct vnode *vp, int newmapping) 1889100979Srwatson{ 1890100979Srwatson vm_prot_t result = VM_PROT_ALL; 1891100979Srwatson 1892103514Srwatson if (!mac_enforce_vm) 1893103514Srwatson return (result); 1894103514Srwatson 1895100979Srwatson /* 1896100979Srwatson * This should be some sort of MAC_BITWISE, maybe :) 1897100979Srwatson */ 1898100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_mmap_perms"); 1899100979Srwatson MAC_BOOLEAN(check_vnode_mmap_perms, &, cred, vp, &vp->v_label, 1900100979Srwatson newmapping); 1901100979Srwatson return (result); 1902100979Srwatson} 1903100979Srwatson 1904100979Srwatsonint 1905102112Srwatsonmac_check_vnode_open(struct ucred *cred, struct vnode *vp, mode_t acc_mode) 1906100979Srwatson{ 1907100979Srwatson int error; 1908100979Srwatson 1909102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_open"); 1910102112Srwatson 1911100979Srwatson if (!mac_enforce_fs) 1912100979Srwatson return (0); 1913100979Srwatson 1914102112Srwatson error = vn_refreshlabel(vp, cred); 1915102112Srwatson if (error) 1916102112Srwatson return (error); 1917100979Srwatson 1918102112Srwatson MAC_CHECK(check_vnode_open, cred, vp, &vp->v_label, acc_mode); 1919102112Srwatson return (error); 1920102112Srwatson} 1921102112Srwatson 1922102112Srwatsonint 1923102129Srwatsonmac_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 1924102129Srwatson struct vnode *vp) 1925102112Srwatson{ 1926102112Srwatson int error; 1927102112Srwatson 1928102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_poll"); 1929102112Srwatson 1930102112Srwatson if (!mac_enforce_fs) 1931102112Srwatson return (0); 1932102112Srwatson 1933102129Srwatson error = vn_refreshlabel(vp, active_cred); 1934100979Srwatson if (error) 1935100979Srwatson return (error); 1936100979Srwatson 1937102129Srwatson MAC_CHECK(check_vnode_poll, active_cred, file_cred, vp, 1938102129Srwatson &vp->v_label); 1939100979Srwatson 1940100979Srwatson return (error); 1941100979Srwatson} 1942100979Srwatson 1943100979Srwatsonint 1944102129Srwatsonmac_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 1945102129Srwatson struct vnode *vp) 1946100979Srwatson{ 1947100979Srwatson int error; 1948100979Srwatson 1949102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_read"); 1950100979Srwatson 1951100979Srwatson if (!mac_enforce_fs) 1952100979Srwatson return (0); 1953100979Srwatson 1954102129Srwatson error = vn_refreshlabel(vp, active_cred); 1955100979Srwatson if (error) 1956100979Srwatson return (error); 1957100979Srwatson 1958102129Srwatson MAC_CHECK(check_vnode_read, active_cred, file_cred, vp, 1959102129Srwatson &vp->v_label); 1960102112Srwatson 1961100979Srwatson return (error); 1962100979Srwatson} 1963100979Srwatson 1964100979Srwatsonint 1965100979Srwatsonmac_check_vnode_readdir(struct ucred *cred, struct vnode *dvp) 1966100979Srwatson{ 1967100979Srwatson int error; 1968100979Srwatson 1969100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_readdir"); 1970100979Srwatson 1971100979Srwatson if (!mac_enforce_fs) 1972100979Srwatson return (0); 1973100979Srwatson 1974100979Srwatson error = vn_refreshlabel(dvp, cred); 1975100979Srwatson if (error) 1976100979Srwatson return (error); 1977100979Srwatson 1978100979Srwatson MAC_CHECK(check_vnode_readdir, cred, dvp, &dvp->v_label); 1979100979Srwatson return (error); 1980100979Srwatson} 1981100979Srwatson 1982100979Srwatsonint 1983100979Srwatsonmac_check_vnode_readlink(struct ucred *cred, struct vnode *vp) 1984100979Srwatson{ 1985100979Srwatson int error; 1986100979Srwatson 1987100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_readlink"); 1988100979Srwatson 1989100979Srwatson if (!mac_enforce_fs) 1990100979Srwatson return (0); 1991100979Srwatson 1992100979Srwatson error = vn_refreshlabel(vp, cred); 1993100979Srwatson if (error) 1994100979Srwatson return (error); 1995100979Srwatson 1996100979Srwatson MAC_CHECK(check_vnode_readlink, cred, vp, &vp->v_label); 1997100979Srwatson return (error); 1998100979Srwatson} 1999100979Srwatson 2000100979Srwatsonstatic int 2001100979Srwatsonmac_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 2002100979Srwatson struct label *newlabel) 2003100979Srwatson{ 2004100979Srwatson int error; 2005100979Srwatson 2006100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_relabel"); 2007100979Srwatson 2008100979Srwatson error = vn_refreshlabel(vp, cred); 2009100979Srwatson if (error) 2010100979Srwatson return (error); 2011100979Srwatson 2012100979Srwatson MAC_CHECK(check_vnode_relabel, cred, vp, &vp->v_label, newlabel); 2013100979Srwatson 2014100979Srwatson return (error); 2015100979Srwatson} 2016100979Srwatson 2017100979Srwatsonint 2018100979Srwatsonmac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 2019100979Srwatson struct vnode *vp, struct componentname *cnp) 2020100979Srwatson{ 2021100979Srwatson int error; 2022100979Srwatson 2023100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_from"); 2024100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_from"); 2025100979Srwatson 2026100979Srwatson if (!mac_enforce_fs) 2027100979Srwatson return (0); 2028100979Srwatson 2029100979Srwatson error = vn_refreshlabel(dvp, cred); 2030100979Srwatson if (error) 2031100979Srwatson return (error); 2032100979Srwatson error = vn_refreshlabel(vp, cred); 2033100979Srwatson if (error) 2034100979Srwatson return (error); 2035100979Srwatson 2036100979Srwatson MAC_CHECK(check_vnode_rename_from, cred, dvp, &dvp->v_label, vp, 2037100979Srwatson &vp->v_label, cnp); 2038100979Srwatson return (error); 2039100979Srwatson} 2040100979Srwatson 2041100979Srwatsonint 2042100979Srwatsonmac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 2043100979Srwatson struct vnode *vp, int samedir, struct componentname *cnp) 2044100979Srwatson{ 2045100979Srwatson int error; 2046100979Srwatson 2047100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_to"); 2048100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_to"); 2049100979Srwatson 2050100979Srwatson if (!mac_enforce_fs) 2051100979Srwatson return (0); 2052100979Srwatson 2053100979Srwatson error = vn_refreshlabel(dvp, cred); 2054100979Srwatson if (error) 2055100979Srwatson return (error); 2056100979Srwatson if (vp != NULL) { 2057100979Srwatson error = vn_refreshlabel(vp, cred); 2058100979Srwatson if (error) 2059100979Srwatson return (error); 2060100979Srwatson } 2061100979Srwatson MAC_CHECK(check_vnode_rename_to, cred, dvp, &dvp->v_label, vp, 2062100979Srwatson vp != NULL ? &vp->v_label : NULL, samedir, cnp); 2063100979Srwatson return (error); 2064100979Srwatson} 2065100979Srwatson 2066100979Srwatsonint 2067100979Srwatsonmac_check_vnode_revoke(struct ucred *cred, struct vnode *vp) 2068100979Srwatson{ 2069100979Srwatson int error; 2070100979Srwatson 2071100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_revoke"); 2072100979Srwatson 2073100979Srwatson if (!mac_enforce_fs) 2074100979Srwatson return (0); 2075100979Srwatson 2076100979Srwatson error = vn_refreshlabel(vp, cred); 2077100979Srwatson if (error) 2078100979Srwatson return (error); 2079100979Srwatson 2080100979Srwatson MAC_CHECK(check_vnode_revoke, cred, vp, &vp->v_label); 2081100979Srwatson return (error); 2082100979Srwatson} 2083100979Srwatson 2084100979Srwatsonint 2085100979Srwatsonmac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, acl_type_t type, 2086100979Srwatson struct acl *acl) 2087100979Srwatson{ 2088100979Srwatson int error; 2089100979Srwatson 2090100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setacl"); 2091100979Srwatson 2092100979Srwatson if (!mac_enforce_fs) 2093100979Srwatson return (0); 2094100979Srwatson 2095100979Srwatson error = vn_refreshlabel(vp, cred); 2096100979Srwatson if (error) 2097100979Srwatson return (error); 2098100979Srwatson 2099100979Srwatson MAC_CHECK(check_vnode_setacl, cred, vp, &vp->v_label, type, acl); 2100100979Srwatson return (error); 2101100979Srwatson} 2102100979Srwatson 2103100979Srwatsonint 2104100979Srwatsonmac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 2105100979Srwatson int attrnamespace, const char *name, struct uio *uio) 2106100979Srwatson{ 2107100979Srwatson int error; 2108100979Srwatson 2109100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setextattr"); 2110100979Srwatson 2111100979Srwatson if (!mac_enforce_fs) 2112100979Srwatson return (0); 2113100979Srwatson 2114100979Srwatson error = vn_refreshlabel(vp, cred); 2115100979Srwatson if (error) 2116100979Srwatson return (error); 2117100979Srwatson 2118100979Srwatson MAC_CHECK(check_vnode_setextattr, cred, vp, &vp->v_label, 2119100979Srwatson attrnamespace, name, uio); 2120100979Srwatson return (error); 2121100979Srwatson} 2122100979Srwatson 2123100979Srwatsonint 2124100979Srwatsonmac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, u_long flags) 2125100979Srwatson{ 2126100979Srwatson int error; 2127100979Srwatson 2128100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setflags"); 2129100979Srwatson 2130100979Srwatson if (!mac_enforce_fs) 2131100979Srwatson return (0); 2132100979Srwatson 2133100979Srwatson error = vn_refreshlabel(vp, cred); 2134100979Srwatson if (error) 2135100979Srwatson return (error); 2136100979Srwatson 2137100979Srwatson MAC_CHECK(check_vnode_setflags, cred, vp, &vp->v_label, flags); 2138100979Srwatson return (error); 2139100979Srwatson} 2140100979Srwatson 2141100979Srwatsonint 2142100979Srwatsonmac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, mode_t mode) 2143100979Srwatson{ 2144100979Srwatson int error; 2145100979Srwatson 2146100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setmode"); 2147100979Srwatson 2148100979Srwatson if (!mac_enforce_fs) 2149100979Srwatson return (0); 2150100979Srwatson 2151100979Srwatson error = vn_refreshlabel(vp, cred); 2152100979Srwatson if (error) 2153100979Srwatson return (error); 2154100979Srwatson 2155100979Srwatson MAC_CHECK(check_vnode_setmode, cred, vp, &vp->v_label, mode); 2156100979Srwatson return (error); 2157100979Srwatson} 2158100979Srwatson 2159100979Srwatsonint 2160100979Srwatsonmac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, uid_t uid, 2161100979Srwatson gid_t gid) 2162100979Srwatson{ 2163100979Srwatson int error; 2164100979Srwatson 2165100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setowner"); 2166100979Srwatson 2167100979Srwatson if (!mac_enforce_fs) 2168100979Srwatson return (0); 2169100979Srwatson 2170100979Srwatson error = vn_refreshlabel(vp, cred); 2171100979Srwatson if (error) 2172100979Srwatson return (error); 2173100979Srwatson 2174100979Srwatson MAC_CHECK(check_vnode_setowner, cred, vp, &vp->v_label, uid, gid); 2175100979Srwatson return (error); 2176100979Srwatson} 2177100979Srwatson 2178100979Srwatsonint 2179100979Srwatsonmac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 2180100979Srwatson struct timespec atime, struct timespec mtime) 2181100979Srwatson{ 2182100979Srwatson int error; 2183100979Srwatson 2184100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setutimes"); 2185100979Srwatson 2186100979Srwatson if (!mac_enforce_fs) 2187100979Srwatson return (0); 2188100979Srwatson 2189100979Srwatson error = vn_refreshlabel(vp, cred); 2190100979Srwatson if (error) 2191100979Srwatson return (error); 2192100979Srwatson 2193100979Srwatson MAC_CHECK(check_vnode_setutimes, cred, vp, &vp->v_label, atime, 2194100979Srwatson mtime); 2195100979Srwatson return (error); 2196100979Srwatson} 2197100979Srwatson 2198100979Srwatsonint 2199102129Srwatsonmac_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 2200102129Srwatson struct vnode *vp) 2201100979Srwatson{ 2202100979Srwatson int error; 2203100979Srwatson 2204100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_stat"); 2205100979Srwatson 2206100979Srwatson if (!mac_enforce_fs) 2207100979Srwatson return (0); 2208100979Srwatson 2209102129Srwatson error = vn_refreshlabel(vp, active_cred); 2210100979Srwatson if (error) 2211100979Srwatson return (error); 2212100979Srwatson 2213102129Srwatson MAC_CHECK(check_vnode_stat, active_cred, file_cred, vp, 2214102129Srwatson &vp->v_label); 2215100979Srwatson return (error); 2216100979Srwatson} 2217100979Srwatson 2218102112Srwatsonint 2219102129Srwatsonmac_check_vnode_write(struct ucred *active_cred, struct ucred *file_cred, 2220102129Srwatson struct vnode *vp) 2221102112Srwatson{ 2222102112Srwatson int error; 2223102112Srwatson 2224102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_write"); 2225102112Srwatson 2226102112Srwatson if (!mac_enforce_fs) 2227102112Srwatson return (0); 2228102112Srwatson 2229102129Srwatson error = vn_refreshlabel(vp, active_cred); 2230102112Srwatson if (error) 2231102112Srwatson return (error); 2232102112Srwatson 2233102129Srwatson MAC_CHECK(check_vnode_write, active_cred, file_cred, vp, 2234102129Srwatson &vp->v_label); 2235102112Srwatson 2236102112Srwatson return (error); 2237102112Srwatson} 2238102112Srwatson 2239100979Srwatson/* 2240100979Srwatson * When relabeling a process, call out to the policies for the maximum 2241100979Srwatson * permission allowed for each object type we know about in its 2242100979Srwatson * memory space, and revoke access (in the least surprising ways we 2243100979Srwatson * know) when necessary. The process lock is not held here. 2244100979Srwatson */ 2245100979Srwatsonstatic void 2246100979Srwatsonmac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred) 2247100979Srwatson{ 2248100979Srwatson 2249100979Srwatson /* XXX freeze all other threads */ 2250100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2251100979Srwatson &td->td_proc->p_vmspace->vm_map); 2252100979Srwatson /* XXX allow other threads to continue */ 2253100979Srwatson} 2254100979Srwatson 2255100979Srwatsonstatic __inline const char * 2256100979Srwatsonprot2str(vm_prot_t prot) 2257100979Srwatson{ 2258100979Srwatson 2259100979Srwatson switch (prot & VM_PROT_ALL) { 2260100979Srwatson case VM_PROT_READ: 2261100979Srwatson return ("r--"); 2262100979Srwatson case VM_PROT_READ | VM_PROT_WRITE: 2263100979Srwatson return ("rw-"); 2264100979Srwatson case VM_PROT_READ | VM_PROT_EXECUTE: 2265100979Srwatson return ("r-x"); 2266100979Srwatson case VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE: 2267100979Srwatson return ("rwx"); 2268100979Srwatson case VM_PROT_WRITE: 2269100979Srwatson return ("-w-"); 2270100979Srwatson case VM_PROT_EXECUTE: 2271100979Srwatson return ("--x"); 2272100979Srwatson case VM_PROT_WRITE | VM_PROT_EXECUTE: 2273100979Srwatson return ("-wx"); 2274100979Srwatson default: 2275100979Srwatson return ("---"); 2276100979Srwatson } 2277100979Srwatson} 2278100979Srwatson 2279100979Srwatsonstatic void 2280100979Srwatsonmac_cred_mmapped_drop_perms_recurse(struct thread *td, struct ucred *cred, 2281100979Srwatson struct vm_map *map) 2282100979Srwatson{ 2283100979Srwatson struct vm_map_entry *vme; 2284100979Srwatson vm_prot_t result, revokeperms; 2285100979Srwatson vm_object_t object; 2286100979Srwatson vm_ooffset_t offset; 2287100979Srwatson struct vnode *vp; 2288100979Srwatson 2289103136Srwatson if (!mac_mmap_revocation) 2290103136Srwatson return; 2291103136Srwatson 2292100979Srwatson vm_map_lock_read(map); 2293100979Srwatson for (vme = map->header.next; vme != &map->header; vme = vme->next) { 2294100979Srwatson if (vme->eflags & MAP_ENTRY_IS_SUB_MAP) { 2295100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2296100979Srwatson vme->object.sub_map); 2297100979Srwatson continue; 2298100979Srwatson } 2299100979Srwatson /* 2300100979Srwatson * Skip over entries that obviously are not shared. 2301100979Srwatson */ 2302100979Srwatson if (vme->eflags & (MAP_ENTRY_COW | MAP_ENTRY_NOSYNC) || 2303100979Srwatson !vme->max_protection) 2304100979Srwatson continue; 2305100979Srwatson /* 2306100979Srwatson * Drill down to the deepest backing object. 2307100979Srwatson */ 2308100979Srwatson offset = vme->offset; 2309100979Srwatson object = vme->object.vm_object; 2310100979Srwatson if (object == NULL) 2311100979Srwatson continue; 2312100979Srwatson while (object->backing_object != NULL) { 2313100979Srwatson object = object->backing_object; 2314100979Srwatson offset += object->backing_object_offset; 2315100979Srwatson } 2316100979Srwatson /* 2317100979Srwatson * At the moment, vm_maps and objects aren't considered 2318100979Srwatson * by the MAC system, so only things with backing by a 2319100979Srwatson * normal object (read: vnodes) are checked. 2320100979Srwatson */ 2321100979Srwatson if (object->type != OBJT_VNODE) 2322100979Srwatson continue; 2323100979Srwatson vp = (struct vnode *)object->handle; 2324100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2325100979Srwatson result = mac_check_vnode_mmap_prot(cred, vp, 0); 2326100979Srwatson VOP_UNLOCK(vp, 0, td); 2327100979Srwatson /* 2328100979Srwatson * Find out what maximum protection we may be allowing 2329100979Srwatson * now but a policy needs to get removed. 2330100979Srwatson */ 2331100979Srwatson revokeperms = vme->max_protection & ~result; 2332100979Srwatson if (!revokeperms) 2333100979Srwatson continue; 2334102949Sbde printf("pid %ld: revoking %s perms from %#lx:%ld " 2335102949Sbde "(max %s/cur %s)\n", (long)td->td_proc->p_pid, 2336102949Sbde prot2str(revokeperms), (u_long)vme->start, 2337102949Sbde (long)(vme->end - vme->start), 2338100979Srwatson prot2str(vme->max_protection), prot2str(vme->protection)); 2339100979Srwatson vm_map_lock_upgrade(map); 2340100979Srwatson /* 2341100979Srwatson * This is the really simple case: if a map has more 2342100979Srwatson * max_protection than is allowed, but it's not being 2343100979Srwatson * actually used (that is, the current protection is 2344100979Srwatson * still allowed), we can just wipe it out and do 2345100979Srwatson * nothing more. 2346100979Srwatson */ 2347100979Srwatson if ((vme->protection & revokeperms) == 0) { 2348100979Srwatson vme->max_protection -= revokeperms; 2349100979Srwatson } else { 2350100979Srwatson if (revokeperms & VM_PROT_WRITE) { 2351100979Srwatson /* 2352100979Srwatson * In the more complicated case, flush out all 2353100979Srwatson * pending changes to the object then turn it 2354100979Srwatson * copy-on-write. 2355100979Srwatson */ 2356100979Srwatson vm_object_reference(object); 2357100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2358100979Srwatson vm_object_page_clean(object, 2359100979Srwatson OFF_TO_IDX(offset), 2360100979Srwatson OFF_TO_IDX(offset + vme->end - vme->start + 2361100979Srwatson PAGE_MASK), 2362100979Srwatson OBJPC_SYNC); 2363100979Srwatson VOP_UNLOCK(vp, 0, td); 2364100979Srwatson vm_object_deallocate(object); 2365100979Srwatson /* 2366100979Srwatson * Why bother if there's no read permissions 2367100979Srwatson * anymore? For the rest, we need to leave 2368100979Srwatson * the write permissions on for COW, or 2369100979Srwatson * remove them entirely if configured to. 2370100979Srwatson */ 2371100979Srwatson if (!mac_mmap_revocation_via_cow) { 2372100979Srwatson vme->max_protection &= ~VM_PROT_WRITE; 2373100979Srwatson vme->protection &= ~VM_PROT_WRITE; 2374100979Srwatson } if ((revokeperms & VM_PROT_READ) == 0) 2375100979Srwatson vme->eflags |= MAP_ENTRY_COW | 2376100979Srwatson MAP_ENTRY_NEEDS_COPY; 2377100979Srwatson } 2378100979Srwatson if (revokeperms & VM_PROT_EXECUTE) { 2379100979Srwatson vme->max_protection &= ~VM_PROT_EXECUTE; 2380100979Srwatson vme->protection &= ~VM_PROT_EXECUTE; 2381100979Srwatson } 2382100979Srwatson if (revokeperms & VM_PROT_READ) { 2383100979Srwatson vme->max_protection = 0; 2384100979Srwatson vme->protection = 0; 2385100979Srwatson } 2386100979Srwatson pmap_protect(map->pmap, vme->start, vme->end, 2387100979Srwatson vme->protection & ~revokeperms); 2388100979Srwatson vm_map_simplify_entry(map, vme); 2389100979Srwatson } 2390100979Srwatson vm_map_lock_downgrade(map); 2391100979Srwatson } 2392100979Srwatson vm_map_unlock_read(map); 2393100979Srwatson} 2394100979Srwatson 2395100979Srwatson/* 2396100979Srwatson * When the subject's label changes, it may require revocation of privilege 2397100979Srwatson * to mapped objects. This can't be done on-the-fly later with a unified 2398100979Srwatson * buffer cache. 2399100979Srwatson */ 2400100979Srwatsonstatic void 2401100979Srwatsonmac_relabel_cred(struct ucred *cred, struct label *newlabel) 2402100979Srwatson{ 2403100979Srwatson 2404100979Srwatson MAC_PERFORM(relabel_cred, cred, newlabel); 2405100979Srwatson} 2406100979Srwatson 2407100979Srwatsonvoid 2408100979Srwatsonmac_relabel_vnode(struct ucred *cred, struct vnode *vp, struct label *newlabel) 2409100979Srwatson{ 2410100979Srwatson 2411100979Srwatson MAC_PERFORM(relabel_vnode, cred, vp, &vp->v_label, newlabel); 2412100979Srwatson} 2413100979Srwatson 2414100979Srwatsonvoid 2415100979Srwatsonmac_create_ifnet(struct ifnet *ifnet) 2416100979Srwatson{ 2417100979Srwatson 2418100979Srwatson MAC_PERFORM(create_ifnet, ifnet, &ifnet->if_label); 2419100979Srwatson} 2420100979Srwatson 2421100979Srwatsonvoid 2422100979Srwatsonmac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d) 2423100979Srwatson{ 2424100979Srwatson 2425100979Srwatson MAC_PERFORM(create_bpfdesc, cred, bpf_d, &bpf_d->bd_label); 2426100979Srwatson} 2427100979Srwatson 2428100979Srwatsonvoid 2429100979Srwatsonmac_create_socket(struct ucred *cred, struct socket *socket) 2430100979Srwatson{ 2431100979Srwatson 2432100979Srwatson MAC_PERFORM(create_socket, cred, socket, &socket->so_label); 2433100979Srwatson} 2434100979Srwatson 2435100979Srwatsonvoid 2436100979Srwatsonmac_create_pipe(struct ucred *cred, struct pipe *pipe) 2437100979Srwatson{ 2438100979Srwatson 2439100979Srwatson MAC_PERFORM(create_pipe, cred, pipe, pipe->pipe_label); 2440100979Srwatson} 2441100979Srwatson 2442100979Srwatsonvoid 2443100979Srwatsonmac_create_socket_from_socket(struct socket *oldsocket, 2444100979Srwatson struct socket *newsocket) 2445100979Srwatson{ 2446100979Srwatson 2447100979Srwatson MAC_PERFORM(create_socket_from_socket, oldsocket, &oldsocket->so_label, 2448100979Srwatson newsocket, &newsocket->so_label); 2449100979Srwatson} 2450100979Srwatson 2451100979Srwatsonstatic void 2452100979Srwatsonmac_relabel_socket(struct ucred *cred, struct socket *socket, 2453100979Srwatson struct label *newlabel) 2454100979Srwatson{ 2455100979Srwatson 2456100979Srwatson MAC_PERFORM(relabel_socket, cred, socket, &socket->so_label, newlabel); 2457100979Srwatson} 2458100979Srwatson 2459100979Srwatsonstatic void 2460100979Srwatsonmac_relabel_pipe(struct ucred *cred, struct pipe *pipe, struct label *newlabel) 2461100979Srwatson{ 2462100979Srwatson 2463100979Srwatson MAC_PERFORM(relabel_pipe, cred, pipe, pipe->pipe_label, newlabel); 2464100979Srwatson} 2465100979Srwatson 2466100979Srwatsonvoid 2467100979Srwatsonmac_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct socket *socket) 2468100979Srwatson{ 2469100979Srwatson 2470100979Srwatson MAC_PERFORM(set_socket_peer_from_mbuf, mbuf, &mbuf->m_pkthdr.label, 2471100979Srwatson socket, &socket->so_peerlabel); 2472100979Srwatson} 2473100979Srwatson 2474100979Srwatsonvoid 2475100979Srwatsonmac_set_socket_peer_from_socket(struct socket *oldsocket, 2476100979Srwatson struct socket *newsocket) 2477100979Srwatson{ 2478100979Srwatson 2479100979Srwatson MAC_PERFORM(set_socket_peer_from_socket, oldsocket, 2480100979Srwatson &oldsocket->so_label, newsocket, &newsocket->so_peerlabel); 2481100979Srwatson} 2482100979Srwatson 2483100979Srwatsonvoid 2484100979Srwatsonmac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram) 2485100979Srwatson{ 2486100979Srwatson 2487100979Srwatson MAC_PERFORM(create_datagram_from_ipq, ipq, &ipq->ipq_label, 2488100979Srwatson datagram, &datagram->m_pkthdr.label); 2489100979Srwatson} 2490100979Srwatson 2491100979Srwatsonvoid 2492100979Srwatsonmac_create_fragment(struct mbuf *datagram, struct mbuf *fragment) 2493100979Srwatson{ 2494100979Srwatson 2495100979Srwatson MAC_PERFORM(create_fragment, datagram, &datagram->m_pkthdr.label, 2496100979Srwatson fragment, &fragment->m_pkthdr.label); 2497100979Srwatson} 2498100979Srwatson 2499100979Srwatsonvoid 2500100979Srwatsonmac_create_ipq(struct mbuf *fragment, struct ipq *ipq) 2501100979Srwatson{ 2502100979Srwatson 2503100979Srwatson MAC_PERFORM(create_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2504100979Srwatson &ipq->ipq_label); 2505100979Srwatson} 2506100979Srwatson 2507100979Srwatsonvoid 2508100979Srwatsonmac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2509100979Srwatson{ 2510100979Srwatson 2511100979Srwatson MAC_PERFORM(create_mbuf_from_mbuf, oldmbuf, &oldmbuf->m_pkthdr.label, 2512100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2513100979Srwatson} 2514100979Srwatson 2515100979Srwatsonvoid 2516100979Srwatsonmac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *mbuf) 2517100979Srwatson{ 2518100979Srwatson 2519100979Srwatson MAC_PERFORM(create_mbuf_from_bpfdesc, bpf_d, &bpf_d->bd_label, mbuf, 2520100979Srwatson &mbuf->m_pkthdr.label); 2521100979Srwatson} 2522100979Srwatson 2523100979Srwatsonvoid 2524100979Srwatsonmac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *mbuf) 2525100979Srwatson{ 2526100979Srwatson 2527100979Srwatson MAC_PERFORM(create_mbuf_linklayer, ifnet, &ifnet->if_label, mbuf, 2528100979Srwatson &mbuf->m_pkthdr.label); 2529100979Srwatson} 2530100979Srwatson 2531100979Srwatsonvoid 2532100979Srwatsonmac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *mbuf) 2533100979Srwatson{ 2534100979Srwatson 2535100979Srwatson MAC_PERFORM(create_mbuf_from_ifnet, ifnet, &ifnet->if_label, mbuf, 2536100979Srwatson &mbuf->m_pkthdr.label); 2537100979Srwatson} 2538100979Srwatson 2539100979Srwatsonvoid 2540100979Srwatsonmac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, struct ifnet *ifnet, 2541100979Srwatson struct mbuf *newmbuf) 2542100979Srwatson{ 2543100979Srwatson 2544100979Srwatson MAC_PERFORM(create_mbuf_multicast_encap, oldmbuf, 2545100979Srwatson &oldmbuf->m_pkthdr.label, ifnet, &ifnet->if_label, newmbuf, 2546100979Srwatson &newmbuf->m_pkthdr.label); 2547100979Srwatson} 2548100979Srwatson 2549100979Srwatsonvoid 2550100979Srwatsonmac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2551100979Srwatson{ 2552100979Srwatson 2553100979Srwatson MAC_PERFORM(create_mbuf_netlayer, oldmbuf, &oldmbuf->m_pkthdr.label, 2554100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2555100979Srwatson} 2556100979Srwatson 2557100979Srwatsonint 2558100979Srwatsonmac_fragment_match(struct mbuf *fragment, struct ipq *ipq) 2559100979Srwatson{ 2560100979Srwatson int result; 2561100979Srwatson 2562100979Srwatson result = 1; 2563100979Srwatson MAC_BOOLEAN(fragment_match, &&, fragment, &fragment->m_pkthdr.label, 2564100979Srwatson ipq, &ipq->ipq_label); 2565100979Srwatson 2566100979Srwatson return (result); 2567100979Srwatson} 2568100979Srwatson 2569100979Srwatsonvoid 2570100979Srwatsonmac_update_ipq(struct mbuf *fragment, struct ipq *ipq) 2571100979Srwatson{ 2572100979Srwatson 2573100979Srwatson MAC_PERFORM(update_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2574100979Srwatson &ipq->ipq_label); 2575100979Srwatson} 2576100979Srwatson 2577100979Srwatsonvoid 2578100979Srwatsonmac_create_mbuf_from_socket(struct socket *socket, struct mbuf *mbuf) 2579100979Srwatson{ 2580100979Srwatson 2581100979Srwatson MAC_PERFORM(create_mbuf_from_socket, socket, &socket->so_label, mbuf, 2582100979Srwatson &mbuf->m_pkthdr.label); 2583100979Srwatson} 2584100979Srwatson 2585100979Srwatsonvoid 2586100979Srwatsonmac_create_mount(struct ucred *cred, struct mount *mp) 2587100979Srwatson{ 2588100979Srwatson 2589100979Srwatson MAC_PERFORM(create_mount, cred, mp, &mp->mnt_mntlabel, 2590100979Srwatson &mp->mnt_fslabel); 2591100979Srwatson} 2592100979Srwatson 2593100979Srwatsonvoid 2594100979Srwatsonmac_create_root_mount(struct ucred *cred, struct mount *mp) 2595100979Srwatson{ 2596100979Srwatson 2597100979Srwatson MAC_PERFORM(create_root_mount, cred, mp, &mp->mnt_mntlabel, 2598100979Srwatson &mp->mnt_fslabel); 2599100979Srwatson} 2600100979Srwatson 2601100979Srwatsonint 2602100979Srwatsonmac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet) 2603100979Srwatson{ 2604100979Srwatson int error; 2605100979Srwatson 2606100979Srwatson if (!mac_enforce_network) 2607100979Srwatson return (0); 2608100979Srwatson 2609100979Srwatson MAC_CHECK(check_bpfdesc_receive, bpf_d, &bpf_d->bd_label, ifnet, 2610100979Srwatson &ifnet->if_label); 2611100979Srwatson 2612100979Srwatson return (error); 2613100979Srwatson} 2614100979Srwatson 2615100979Srwatsonstatic int 2616100979Srwatsonmac_check_cred_relabel(struct ucred *cred, struct label *newlabel) 2617100979Srwatson{ 2618100979Srwatson int error; 2619100979Srwatson 2620100979Srwatson MAC_CHECK(check_cred_relabel, cred, newlabel); 2621100979Srwatson 2622100979Srwatson return (error); 2623100979Srwatson} 2624100979Srwatson 2625100979Srwatsonint 2626100979Srwatsonmac_check_cred_visible(struct ucred *u1, struct ucred *u2) 2627100979Srwatson{ 2628100979Srwatson int error; 2629100979Srwatson 2630100979Srwatson if (!mac_enforce_process) 2631100979Srwatson return (0); 2632100979Srwatson 2633100979Srwatson MAC_CHECK(check_cred_visible, u1, u2); 2634100979Srwatson 2635100979Srwatson return (error); 2636100979Srwatson} 2637100979Srwatson 2638100979Srwatsonint 2639100979Srwatsonmac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *mbuf) 2640100979Srwatson{ 2641100979Srwatson int error; 2642100979Srwatson 2643100979Srwatson if (!mac_enforce_network) 2644100979Srwatson return (0); 2645100979Srwatson 2646100979Srwatson KASSERT(mbuf->m_flags & M_PKTHDR, ("packet has no pkthdr")); 2647100979Srwatson if (!(mbuf->m_pkthdr.label.l_flags & MAC_FLAG_INITIALIZED)) 2648100979Srwatson printf("%s%d: not initialized\n", ifnet->if_name, 2649100979Srwatson ifnet->if_unit); 2650100979Srwatson 2651100979Srwatson MAC_CHECK(check_ifnet_transmit, ifnet, &ifnet->if_label, mbuf, 2652100979Srwatson &mbuf->m_pkthdr.label); 2653100979Srwatson 2654100979Srwatson return (error); 2655100979Srwatson} 2656100979Srwatson 2657100979Srwatsonint 2658100979Srwatsonmac_check_mount_stat(struct ucred *cred, struct mount *mount) 2659100979Srwatson{ 2660100979Srwatson int error; 2661100979Srwatson 2662100979Srwatson if (!mac_enforce_fs) 2663100979Srwatson return (0); 2664100979Srwatson 2665100979Srwatson MAC_CHECK(check_mount_stat, cred, mount, &mount->mnt_mntlabel); 2666100979Srwatson 2667100979Srwatson return (error); 2668100979Srwatson} 2669100979Srwatson 2670100979Srwatsonint 2671100979Srwatsonmac_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe, unsigned long cmd, 2672100979Srwatson void *data) 2673100979Srwatson{ 2674100979Srwatson int error; 2675100979Srwatson 2676104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2677104269Srwatson 2678104269Srwatson if (!mac_enforce_pipe) 2679104269Srwatson return (0); 2680104269Srwatson 2681100979Srwatson MAC_CHECK(check_pipe_ioctl, cred, pipe, pipe->pipe_label, cmd, data); 2682100979Srwatson 2683100979Srwatson return (error); 2684100979Srwatson} 2685100979Srwatson 2686100979Srwatsonint 2687102115Srwatsonmac_check_pipe_poll(struct ucred *cred, struct pipe *pipe) 2688100979Srwatson{ 2689100979Srwatson int error; 2690100979Srwatson 2691104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2692104269Srwatson 2693104269Srwatson if (!mac_enforce_pipe) 2694104269Srwatson return (0); 2695104269Srwatson 2696102115Srwatson MAC_CHECK(check_pipe_poll, cred, pipe, pipe->pipe_label); 2697100979Srwatson 2698100979Srwatson return (error); 2699100979Srwatson} 2700100979Srwatson 2701102115Srwatsonint 2702102115Srwatsonmac_check_pipe_read(struct ucred *cred, struct pipe *pipe) 2703102115Srwatson{ 2704102115Srwatson int error; 2705102115Srwatson 2706104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2707104269Srwatson 2708104269Srwatson if (!mac_enforce_pipe) 2709104269Srwatson return (0); 2710104269Srwatson 2711102115Srwatson MAC_CHECK(check_pipe_read, cred, pipe, pipe->pipe_label); 2712102115Srwatson 2713102115Srwatson return (error); 2714102115Srwatson} 2715102115Srwatson 2716100979Srwatsonstatic int 2717100979Srwatsonmac_check_pipe_relabel(struct ucred *cred, struct pipe *pipe, 2718100979Srwatson struct label *newlabel) 2719100979Srwatson{ 2720100979Srwatson int error; 2721100979Srwatson 2722104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2723104269Srwatson 2724104269Srwatson if (!mac_enforce_pipe) 2725104269Srwatson return (0); 2726104269Srwatson 2727100979Srwatson MAC_CHECK(check_pipe_relabel, cred, pipe, pipe->pipe_label, newlabel); 2728100979Srwatson 2729100979Srwatson return (error); 2730100979Srwatson} 2731100979Srwatson 2732100979Srwatsonint 2733102115Srwatsonmac_check_pipe_stat(struct ucred *cred, struct pipe *pipe) 2734102115Srwatson{ 2735102115Srwatson int error; 2736102115Srwatson 2737104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2738104269Srwatson 2739104269Srwatson if (!mac_enforce_pipe) 2740104269Srwatson return (0); 2741104269Srwatson 2742102115Srwatson MAC_CHECK(check_pipe_stat, cred, pipe, pipe->pipe_label); 2743102115Srwatson 2744102115Srwatson return (error); 2745102115Srwatson} 2746102115Srwatson 2747102115Srwatsonint 2748102115Srwatsonmac_check_pipe_write(struct ucred *cred, struct pipe *pipe) 2749102115Srwatson{ 2750102115Srwatson int error; 2751102115Srwatson 2752104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 2753104269Srwatson 2754104269Srwatson if (!mac_enforce_pipe) 2755104269Srwatson return (0); 2756104269Srwatson 2757102115Srwatson MAC_CHECK(check_pipe_write, cred, pipe, pipe->pipe_label); 2758102115Srwatson 2759102115Srwatson return (error); 2760102115Srwatson} 2761102115Srwatson 2762102115Srwatsonint 2763100979Srwatsonmac_check_proc_debug(struct ucred *cred, struct proc *proc) 2764100979Srwatson{ 2765100979Srwatson int error; 2766100979Srwatson 2767102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2768102103Srwatson 2769100979Srwatson if (!mac_enforce_process) 2770100979Srwatson return (0); 2771100979Srwatson 2772100979Srwatson MAC_CHECK(check_proc_debug, cred, proc); 2773100979Srwatson 2774100979Srwatson return (error); 2775100979Srwatson} 2776100979Srwatson 2777100979Srwatsonint 2778100979Srwatsonmac_check_proc_sched(struct ucred *cred, struct proc *proc) 2779100979Srwatson{ 2780100979Srwatson int error; 2781100979Srwatson 2782102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2783102103Srwatson 2784100979Srwatson if (!mac_enforce_process) 2785100979Srwatson return (0); 2786100979Srwatson 2787100979Srwatson MAC_CHECK(check_proc_sched, cred, proc); 2788100979Srwatson 2789100979Srwatson return (error); 2790100979Srwatson} 2791100979Srwatson 2792100979Srwatsonint 2793100979Srwatsonmac_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 2794100979Srwatson{ 2795100979Srwatson int error; 2796100979Srwatson 2797102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2798102103Srwatson 2799100979Srwatson if (!mac_enforce_process) 2800100979Srwatson return (0); 2801100979Srwatson 2802100979Srwatson MAC_CHECK(check_proc_signal, cred, proc, signum); 2803100979Srwatson 2804100979Srwatson return (error); 2805100979Srwatson} 2806100979Srwatson 2807100979Srwatsonint 2808100979Srwatsonmac_check_socket_bind(struct ucred *ucred, struct socket *socket, 2809100979Srwatson struct sockaddr *sockaddr) 2810100979Srwatson{ 2811100979Srwatson int error; 2812100979Srwatson 2813100979Srwatson if (!mac_enforce_socket) 2814100979Srwatson return (0); 2815100979Srwatson 2816100979Srwatson MAC_CHECK(check_socket_bind, ucred, socket, &socket->so_label, 2817100979Srwatson sockaddr); 2818100979Srwatson 2819100979Srwatson return (error); 2820100979Srwatson} 2821100979Srwatson 2822100979Srwatsonint 2823100979Srwatsonmac_check_socket_connect(struct ucred *cred, struct socket *socket, 2824100979Srwatson struct sockaddr *sockaddr) 2825100979Srwatson{ 2826100979Srwatson int error; 2827100979Srwatson 2828100979Srwatson if (!mac_enforce_socket) 2829100979Srwatson return (0); 2830100979Srwatson 2831100979Srwatson MAC_CHECK(check_socket_connect, cred, socket, &socket->so_label, 2832100979Srwatson sockaddr); 2833100979Srwatson 2834100979Srwatson return (error); 2835100979Srwatson} 2836100979Srwatson 2837100979Srwatsonint 2838101933Srwatsonmac_check_socket_deliver(struct socket *socket, struct mbuf *mbuf) 2839100979Srwatson{ 2840100979Srwatson int error; 2841100979Srwatson 2842100979Srwatson if (!mac_enforce_socket) 2843100979Srwatson return (0); 2844100979Srwatson 2845101933Srwatson MAC_CHECK(check_socket_deliver, socket, &socket->so_label, mbuf, 2846101933Srwatson &mbuf->m_pkthdr.label); 2847101933Srwatson 2848100979Srwatson return (error); 2849100979Srwatson} 2850100979Srwatson 2851100979Srwatsonint 2852101933Srwatsonmac_check_socket_listen(struct ucred *cred, struct socket *socket) 2853100979Srwatson{ 2854100979Srwatson int error; 2855100979Srwatson 2856100979Srwatson if (!mac_enforce_socket) 2857100979Srwatson return (0); 2858100979Srwatson 2859101933Srwatson MAC_CHECK(check_socket_listen, cred, socket, &socket->so_label); 2860100979Srwatson return (error); 2861100979Srwatson} 2862100979Srwatson 2863100979Srwatsonstatic int 2864100979Srwatsonmac_check_socket_relabel(struct ucred *cred, struct socket *socket, 2865100979Srwatson struct label *newlabel) 2866100979Srwatson{ 2867100979Srwatson int error; 2868100979Srwatson 2869100979Srwatson MAC_CHECK(check_socket_relabel, cred, socket, &socket->so_label, 2870100979Srwatson newlabel); 2871100979Srwatson 2872100979Srwatson return (error); 2873100979Srwatson} 2874100979Srwatson 2875100979Srwatsonint 2876100979Srwatsonmac_check_socket_visible(struct ucred *cred, struct socket *socket) 2877100979Srwatson{ 2878100979Srwatson int error; 2879100979Srwatson 2880100979Srwatson if (!mac_enforce_socket) 2881100979Srwatson return (0); 2882100979Srwatson 2883100979Srwatson MAC_CHECK(check_socket_visible, cred, socket, &socket->so_label); 2884100979Srwatson 2885100979Srwatson return (error); 2886100979Srwatson} 2887100979Srwatson 2888100979Srwatsonint 2889100979Srwatsonmac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, 2890100979Srwatson struct ifnet *ifnet) 2891100979Srwatson{ 2892100979Srwatson struct mac label; 2893100979Srwatson int error; 2894100979Srwatson 2895100979Srwatson error = mac_externalize(&ifnet->if_label, &label); 2896100979Srwatson if (error) 2897100979Srwatson return (error); 2898100979Srwatson 2899100979Srwatson return (copyout(&label, ifr->ifr_ifru.ifru_data, sizeof(label))); 2900100979Srwatson} 2901100979Srwatson 2902100979Srwatsonint 2903100979Srwatsonmac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, 2904100979Srwatson struct ifnet *ifnet) 2905100979Srwatson{ 2906100979Srwatson struct mac newlabel; 2907100979Srwatson struct label intlabel; 2908100979Srwatson int error; 2909100979Srwatson 2910100979Srwatson error = copyin(ifr->ifr_ifru.ifru_data, &newlabel, sizeof(newlabel)); 2911100979Srwatson if (error) 2912100979Srwatson return (error); 2913100979Srwatson 2914100979Srwatson error = mac_internalize(&intlabel, &newlabel); 2915100979Srwatson if (error) 2916100979Srwatson return (error); 2917100979Srwatson 2918100979Srwatson /* 2919100979Srwatson * XXX: Note that this is a redundant privilege check, since 2920100979Srwatson * policies impose this check themselves if required by the 2921100979Srwatson * policy. Eventually, this should go away. 2922100979Srwatson */ 2923100979Srwatson error = suser_cred(cred, 0); 2924100979Srwatson if (error) 2925100979Srwatson goto out; 2926100979Srwatson 2927100979Srwatson MAC_CHECK(check_ifnet_relabel, cred, ifnet, &ifnet->if_label, 2928100979Srwatson &intlabel); 2929100979Srwatson if (error) 2930100979Srwatson goto out; 2931100979Srwatson 2932100979Srwatson MAC_PERFORM(relabel_ifnet, cred, ifnet, &ifnet->if_label, &intlabel); 2933100979Srwatson 2934100979Srwatsonout: 2935100979Srwatson mac_destroy_temp(&intlabel); 2936100979Srwatson return (error); 2937100979Srwatson} 2938100979Srwatson 2939100979Srwatsonvoid 2940100979Srwatsonmac_create_devfs_vnode(struct devfs_dirent *de, struct vnode *vp) 2941100979Srwatson{ 2942100979Srwatson 2943100979Srwatson MAC_PERFORM(create_devfs_vnode, de, &de->de_label, vp, &vp->v_label); 2944100979Srwatson} 2945100979Srwatson 2946100979Srwatsonvoid 2947100979Srwatsonmac_create_devfs_device(dev_t dev, struct devfs_dirent *de) 2948100979Srwatson{ 2949100979Srwatson 2950100979Srwatson MAC_PERFORM(create_devfs_device, dev, de, &de->de_label); 2951100979Srwatson} 2952100979Srwatson 2953104533Srwatsonvoid 2954104533Srwatsonmac_create_devfs_symlink(struct ucred *cred, struct devfs_dirent *dd, 2955104533Srwatson struct devfs_dirent *de) 2956104533Srwatson{ 2957104533Srwatson 2958104533Srwatson MAC_PERFORM(create_devfs_symlink, cred, dd, &dd->de_label, de, 2959104533Srwatson &de->de_label); 2960104533Srwatson} 2961104533Srwatson 2962100979Srwatsonstatic int 2963100979Srwatsonmac_stdcreatevnode_ea(struct vnode *vp) 2964100979Srwatson{ 2965100979Srwatson int error; 2966100979Srwatson 2967100979Srwatson MAC_CHECK(stdcreatevnode_ea, vp, &vp->v_label); 2968100979Srwatson 2969100979Srwatson return (error); 2970100979Srwatson} 2971100979Srwatson 2972100979Srwatsonvoid 2973100979Srwatsonmac_create_devfs_directory(char *dirname, int dirnamelen, 2974100979Srwatson struct devfs_dirent *de) 2975100979Srwatson{ 2976100979Srwatson 2977100979Srwatson MAC_PERFORM(create_devfs_directory, dirname, dirnamelen, de, 2978100979Srwatson &de->de_label); 2979100979Srwatson} 2980100979Srwatson 2981100979Srwatson/* 2982100979Srwatson * When a new vnode is created, this call will initialize its label. 2983100979Srwatson */ 2984100979Srwatsonvoid 2985100979Srwatsonmac_create_vnode(struct ucred *cred, struct vnode *parent, 2986100979Srwatson struct vnode *child) 2987100979Srwatson{ 2988100979Srwatson int error; 2989100979Srwatson 2990100979Srwatson ASSERT_VOP_LOCKED(parent, "mac_create_vnode"); 2991100979Srwatson ASSERT_VOP_LOCKED(child, "mac_create_vnode"); 2992100979Srwatson 2993100979Srwatson error = vn_refreshlabel(parent, cred); 2994100979Srwatson if (error) { 2995100979Srwatson printf("mac_create_vnode: vn_refreshlabel returned %d\n", 2996100979Srwatson error); 2997100979Srwatson printf("mac_create_vnode: using old vnode label\n"); 2998100979Srwatson } 2999100979Srwatson 3000100979Srwatson MAC_PERFORM(create_vnode, cred, parent, &parent->v_label, child, 3001100979Srwatson &child->v_label); 3002100979Srwatson} 3003100979Srwatson 3004100979Srwatsonint 3005100979Srwatsonmac_setsockopt_label_set(struct ucred *cred, struct socket *so, 3006100979Srwatson struct mac *extmac) 3007100979Srwatson{ 3008100979Srwatson struct label intlabel; 3009100979Srwatson int error; 3010100979Srwatson 3011100979Srwatson error = mac_internalize(&intlabel, extmac); 3012100979Srwatson if (error) 3013100979Srwatson return (error); 3014100979Srwatson 3015100979Srwatson mac_check_socket_relabel(cred, so, &intlabel); 3016100979Srwatson if (error) { 3017100979Srwatson mac_destroy_temp(&intlabel); 3018100979Srwatson return (error); 3019100979Srwatson } 3020100979Srwatson 3021100979Srwatson mac_relabel_socket(cred, so, &intlabel); 3022100979Srwatson 3023100979Srwatson mac_destroy_temp(&intlabel); 3024100979Srwatson return (0); 3025100979Srwatson} 3026100979Srwatson 3027100979Srwatsonint 3028100979Srwatsonmac_pipe_label_set(struct ucred *cred, struct pipe *pipe, struct label *label) 3029100979Srwatson{ 3030100979Srwatson int error; 3031100979Srwatson 3032104269Srwatson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 3033104269Srwatson 3034100979Srwatson error = mac_check_pipe_relabel(cred, pipe, label); 3035100979Srwatson if (error) 3036100979Srwatson return (error); 3037100979Srwatson 3038100979Srwatson mac_relabel_pipe(cred, pipe, label); 3039100979Srwatson 3040100979Srwatson return (0); 3041100979Srwatson} 3042100979Srwatson 3043100979Srwatsonint 3044100979Srwatsonmac_getsockopt_label_get(struct ucred *cred, struct socket *so, 3045100979Srwatson struct mac *extmac) 3046100979Srwatson{ 3047100979Srwatson 3048100979Srwatson return (mac_externalize(&so->so_label, extmac)); 3049100979Srwatson} 3050100979Srwatson 3051100979Srwatsonint 3052100979Srwatsonmac_getsockopt_peerlabel_get(struct ucred *cred, struct socket *so, 3053100979Srwatson struct mac *extmac) 3054100979Srwatson{ 3055100979Srwatson 3056100979Srwatson return (mac_externalize(&so->so_peerlabel, extmac)); 3057100979Srwatson} 3058100979Srwatson 3059100979Srwatson/* 3060100979Srwatson * Implementation of VOP_SETLABEL() that relies on extended attributes 3061100979Srwatson * to store label data. Can be referenced by filesystems supporting 3062100979Srwatson * extended attributes. 3063100979Srwatson */ 3064100979Srwatsonint 3065100979Srwatsonvop_stdsetlabel_ea(struct vop_setlabel_args *ap) 3066100979Srwatson{ 3067100979Srwatson struct vnode *vp = ap->a_vp; 3068100979Srwatson struct label *intlabel = ap->a_label; 3069100979Srwatson struct mac extmac; 3070100979Srwatson int error; 3071100979Srwatson 3072100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdsetlabel_ea"); 3073100979Srwatson 3074100979Srwatson /* 3075100979Srwatson * XXX: Eventually call out to EA check/set calls here. 3076100979Srwatson * Be particularly careful to avoid race conditions, 3077100979Srwatson * consistency problems, and stability problems when 3078100979Srwatson * dealing with multiple EAs. In particular, we require 3079100979Srwatson * the ability to write multiple EAs on the same file in 3080100979Srwatson * a single transaction, which the current EA interface 3081100979Srwatson * does not provide. 3082100979Srwatson */ 3083100979Srwatson 3084100979Srwatson error = mac_externalize(intlabel, &extmac); 3085100979Srwatson if (error) 3086100979Srwatson return (error); 3087100979Srwatson 3088100979Srwatson error = vn_extattr_set(vp, IO_NODELOCKED, 3089100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 3090100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 3091100979Srwatson if (error) 3092100979Srwatson return (error); 3093100979Srwatson 3094100979Srwatson mac_relabel_vnode(ap->a_cred, vp, intlabel); 3095100979Srwatson 3096101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 3097100979Srwatson 3098100979Srwatson return (0); 3099100979Srwatson} 3100100979Srwatson 3101100979Srwatsonstatic int 3102100979Srwatsonvn_setlabel(struct vnode *vp, struct label *intlabel, struct ucred *cred) 3103100979Srwatson{ 3104100979Srwatson int error; 3105100979Srwatson 3106100979Srwatson if (vp->v_mount == NULL) { 3107100979Srwatson /* printf("vn_setlabel: null v_mount\n"); */ 3108103314Snjl if (vp->v_type != VNON) 3109103314Snjl printf("vn_setlabel: null v_mount with non-VNON\n"); 3110100979Srwatson return (EBADF); 3111100979Srwatson } 3112100979Srwatson 3113100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) 3114100979Srwatson return (EOPNOTSUPP); 3115100979Srwatson 3116100979Srwatson /* 3117100979Srwatson * Multi-phase commit. First check the policies to confirm the 3118100979Srwatson * change is OK. Then commit via the filesystem. Finally, 3119100979Srwatson * update the actual vnode label. Question: maybe the filesystem 3120100979Srwatson * should update the vnode at the end as part of VOP_SETLABEL()? 3121100979Srwatson */ 3122100979Srwatson error = mac_check_vnode_relabel(cred, vp, intlabel); 3123100979Srwatson if (error) 3124100979Srwatson return (error); 3125100979Srwatson 3126100979Srwatson /* 3127100979Srwatson * VADMIN provides the opportunity for the filesystem to make 3128100979Srwatson * decisions about who is and is not able to modify labels 3129100979Srwatson * and protections on files. This might not be right. We can't 3130100979Srwatson * assume VOP_SETLABEL() will do it, because we might implement 3131100979Srwatson * that as part of vop_stdsetlabel_ea(). 3132100979Srwatson */ 3133100979Srwatson error = VOP_ACCESS(vp, VADMIN, cred, curthread); 3134100979Srwatson if (error) 3135100979Srwatson return (error); 3136100979Srwatson 3137100979Srwatson error = VOP_SETLABEL(vp, intlabel, cred, curthread); 3138100979Srwatson if (error) 3139100979Srwatson return (error); 3140100979Srwatson 3141100979Srwatson return (0); 3142100979Srwatson} 3143100979Srwatson 3144100979Srwatson/* 3145100979Srwatson * MPSAFE 3146100979Srwatson */ 3147100979Srwatsonint 3148100894Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 3149100894Srwatson{ 3150100979Srwatson struct mac extmac; 3151100979Srwatson int error; 3152100894Srwatson 3153100979Srwatson error = mac_externalize(&td->td_ucred->cr_label, &extmac); 3154100979Srwatson if (error == 0) 3155100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3156100979Srwatson 3157100979Srwatson return (error); 3158100979Srwatson} 3159100979Srwatson 3160100979Srwatson/* 3161100979Srwatson * MPSAFE 3162100979Srwatson */ 3163100979Srwatsonint 3164100979Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3165100979Srwatson{ 3166100979Srwatson struct ucred *newcred, *oldcred; 3167100979Srwatson struct proc *p; 3168100979Srwatson struct mac extmac; 3169100979Srwatson struct label intlabel; 3170100979Srwatson int error; 3171100979Srwatson 3172100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3173100979Srwatson if (error) 3174100979Srwatson return (error); 3175100979Srwatson 3176100979Srwatson error = mac_internalize(&intlabel, &extmac); 3177100979Srwatson if (error) 3178100979Srwatson return (error); 3179100979Srwatson 3180100979Srwatson newcred = crget(); 3181100979Srwatson 3182100979Srwatson p = td->td_proc; 3183100979Srwatson PROC_LOCK(p); 3184100979Srwatson oldcred = p->p_ucred; 3185100979Srwatson 3186100979Srwatson error = mac_check_cred_relabel(oldcred, &intlabel); 3187100979Srwatson if (error) { 3188100979Srwatson PROC_UNLOCK(p); 3189100979Srwatson mac_destroy_temp(&intlabel); 3190100979Srwatson crfree(newcred); 3191100979Srwatson return (error); 3192100979Srwatson } 3193100979Srwatson 3194100979Srwatson setsugid(p); 3195100979Srwatson crcopy(newcred, oldcred); 3196100979Srwatson mac_relabel_cred(newcred, &intlabel); 3197102136Srwatson p->p_ucred = newcred; 3198100979Srwatson 3199102136Srwatson /* 3200102136Srwatson * Grab additional reference for use while revoking mmaps, prior 3201102136Srwatson * to releasing the proc lock and sharing the cred. 3202102136Srwatson */ 3203102136Srwatson crhold(newcred); 3204100979Srwatson PROC_UNLOCK(p); 3205102136Srwatson 3206103135Srwatson mtx_lock(&Giant); 3207102136Srwatson mac_cred_mmapped_drop_perms(td, newcred); 3208103135Srwatson mtx_unlock(&Giant); 3209102136Srwatson 3210102136Srwatson crfree(newcred); /* Free revocation reference. */ 3211100979Srwatson crfree(oldcred); 3212100979Srwatson mac_destroy_temp(&intlabel); 3213100979Srwatson return (0); 3214100979Srwatson} 3215100979Srwatson 3216100979Srwatson/* 3217100979Srwatson * MPSAFE 3218100979Srwatson */ 3219100979Srwatsonint 3220100979Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3221100979Srwatson{ 3222100979Srwatson struct file *fp; 3223100979Srwatson struct mac extmac; 3224100979Srwatson struct vnode *vp; 3225100979Srwatson struct pipe *pipe; 3226100979Srwatson int error; 3227100979Srwatson 3228100979Srwatson mtx_lock(&Giant); 3229100979Srwatson 3230100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3231100979Srwatson if (error) 3232100979Srwatson goto out; 3233100979Srwatson 3234100979Srwatson switch (fp->f_type) { 3235100979Srwatson case DTYPE_FIFO: 3236100979Srwatson case DTYPE_VNODE: 3237100979Srwatson vp = (struct vnode *)fp->f_data; 3238100979Srwatson 3239100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3240100979Srwatson error = vn_refreshlabel(vp, td->td_ucred); 3241100979Srwatson if (error == 0) 3242100979Srwatson error = mac_externalize(&vp->v_label, &extmac); 3243100979Srwatson VOP_UNLOCK(vp, 0, td); 3244100979Srwatson break; 3245100979Srwatson case DTYPE_PIPE: 3246100979Srwatson pipe = (struct pipe *)fp->f_data; 3247100979Srwatson error = mac_externalize(pipe->pipe_label, &extmac); 3248100979Srwatson break; 3249100979Srwatson default: 3250100979Srwatson error = EINVAL; 3251100979Srwatson } 3252100979Srwatson 3253100979Srwatson if (error == 0) 3254100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3255100979Srwatson 3256100979Srwatson fdrop(fp, td); 3257100979Srwatson 3258100979Srwatsonout: 3259100979Srwatson mtx_unlock(&Giant); 3260100979Srwatson return (error); 3261100979Srwatson} 3262100979Srwatson 3263100979Srwatson/* 3264100979Srwatson * MPSAFE 3265100979Srwatson */ 3266100979Srwatsonint 3267100979Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3268100979Srwatson{ 3269100979Srwatson struct nameidata nd; 3270100979Srwatson struct mac extmac; 3271100979Srwatson int error; 3272100979Srwatson 3273100979Srwatson mtx_lock(&Giant); 3274100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3275100979Srwatson SCARG(uap, path_p), td); 3276100979Srwatson error = namei(&nd); 3277100979Srwatson if (error) 3278100979Srwatson goto out; 3279100979Srwatson 3280100979Srwatson error = vn_refreshlabel(nd.ni_vp, td->td_ucred); 3281100979Srwatson if (error == 0) 3282100979Srwatson error = mac_externalize(&nd.ni_vp->v_label, &extmac); 3283100979Srwatson NDFREE(&nd, 0); 3284100979Srwatson if (error) 3285100979Srwatson goto out; 3286100979Srwatson 3287100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3288100979Srwatson 3289100979Srwatsonout: 3290100979Srwatson mtx_unlock(&Giant); 3291100979Srwatson return (error); 3292100979Srwatson} 3293100979Srwatson 3294100979Srwatson/* 3295100979Srwatson * MPSAFE 3296100979Srwatson */ 3297100979Srwatsonint 3298100979Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3299100979Srwatson{ 3300100979Srwatson struct file *fp; 3301100979Srwatson struct mac extmac; 3302100979Srwatson struct label intlabel; 3303100979Srwatson struct mount *mp; 3304100979Srwatson struct vnode *vp; 3305100979Srwatson struct pipe *pipe; 3306100979Srwatson int error; 3307100979Srwatson 3308100979Srwatson mtx_lock(&Giant); 3309100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3310100979Srwatson if (error) 3311100979Srwatson goto out1; 3312100979Srwatson 3313100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3314100979Srwatson if (error) 3315100979Srwatson goto out2; 3316100979Srwatson 3317100979Srwatson error = mac_internalize(&intlabel, &extmac); 3318100979Srwatson if (error) 3319100979Srwatson goto out2; 3320100979Srwatson 3321100979Srwatson switch (fp->f_type) { 3322100979Srwatson case DTYPE_FIFO: 3323100979Srwatson case DTYPE_VNODE: 3324100979Srwatson vp = (struct vnode *)fp->f_data; 3325100979Srwatson error = vn_start_write(vp, &mp, V_WAIT | PCATCH); 3326100979Srwatson if (error != 0) 3327100979Srwatson break; 3328100979Srwatson 3329100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3330100979Srwatson error = vn_setlabel(vp, &intlabel, td->td_ucred); 3331100979Srwatson VOP_UNLOCK(vp, 0, td); 3332100979Srwatson vn_finished_write(mp); 3333100979Srwatson mac_destroy_temp(&intlabel); 3334100979Srwatson break; 3335100979Srwatson case DTYPE_PIPE: 3336100979Srwatson pipe = (struct pipe *)fp->f_data; 3337104269Srwatson PIPE_LOCK(pipe); 3338100979Srwatson error = mac_pipe_label_set(td->td_ucred, pipe, &intlabel); 3339104269Srwatson PIPE_UNLOCK(pipe); 3340100979Srwatson break; 3341100979Srwatson default: 3342100979Srwatson error = EINVAL; 3343100979Srwatson } 3344100979Srwatson 3345100979Srwatsonout2: 3346100979Srwatson fdrop(fp, td); 3347100979Srwatsonout1: 3348100979Srwatson mtx_unlock(&Giant); 3349100979Srwatson return (error); 3350100979Srwatson} 3351100979Srwatson 3352100979Srwatson/* 3353100979Srwatson * MPSAFE 3354100979Srwatson */ 3355100979Srwatsonint 3356100979Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3357100979Srwatson{ 3358100979Srwatson struct nameidata nd; 3359100979Srwatson struct mac extmac; 3360100979Srwatson struct label intlabel; 3361100979Srwatson struct mount *mp; 3362100979Srwatson int error; 3363100979Srwatson 3364100979Srwatson mtx_lock(&Giant); 3365100979Srwatson 3366100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3367100979Srwatson if (error) 3368100979Srwatson goto out; 3369100979Srwatson 3370100979Srwatson error = mac_internalize(&intlabel, &extmac); 3371100979Srwatson if (error) 3372100979Srwatson goto out; 3373100979Srwatson 3374100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3375100979Srwatson SCARG(uap, path_p), td); 3376100979Srwatson error = namei(&nd); 3377100979Srwatson if (error) 3378100979Srwatson goto out2; 3379100979Srwatson error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH); 3380100979Srwatson if (error) 3381100979Srwatson goto out2; 3382100979Srwatson 3383100979Srwatson error = vn_setlabel(nd.ni_vp, &intlabel, td->td_ucred); 3384100979Srwatson 3385100979Srwatson vn_finished_write(mp); 3386100979Srwatsonout2: 3387100979Srwatson mac_destroy_temp(&intlabel); 3388100979Srwatson NDFREE(&nd, 0); 3389100979Srwatsonout: 3390100979Srwatson mtx_unlock(&Giant); 3391100979Srwatson return (error); 3392100979Srwatson} 3393100979Srwatson 3394102123Srwatsonint 3395102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3396102123Srwatson{ 3397102123Srwatson struct mac_policy_conf *mpc; 3398102123Srwatson char target[MAC_MAX_POLICY_NAME]; 3399102123Srwatson int error; 3400102123Srwatson 3401102123Srwatson error = copyinstr(SCARG(uap, policy), target, sizeof(target), NULL); 3402102123Srwatson if (error) 3403102123Srwatson return (error); 3404102123Srwatson 3405102123Srwatson error = ENOSYS; 3406102123Srwatson MAC_POLICY_LIST_BUSY(); 3407102123Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { 3408102123Srwatson if (strcmp(mpc->mpc_name, target) == 0 && 3409102123Srwatson mpc->mpc_ops->mpo_syscall != NULL) { 3410102123Srwatson error = mpc->mpc_ops->mpo_syscall(td, 3411102123Srwatson SCARG(uap, call), SCARG(uap, arg)); 3412102123Srwatson goto out; 3413102123Srwatson } 3414102123Srwatson } 3415102123Srwatson 3416102123Srwatsonout: 3417102123Srwatson MAC_POLICY_LIST_UNBUSY(); 3418102123Srwatson return (error); 3419102123Srwatson} 3420102123Srwatson 3421100979SrwatsonSYSINIT(mac, SI_SUB_MAC, SI_ORDER_FIRST, mac_init, NULL); 3422100979SrwatsonSYSINIT(mac_late, SI_SUB_MAC_LATE, SI_ORDER_FIRST, mac_late_init, NULL); 3423100979Srwatson 3424100979Srwatson#else /* !MAC */ 3425100979Srwatson 3426100979Srwatsonint 3427100979Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 3428100979Srwatson{ 3429100979Srwatson 3430100894Srwatson return (ENOSYS); 3431100894Srwatson} 3432100894Srwatson 3433100894Srwatsonint 3434100894Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3435100894Srwatson{ 3436100894Srwatson 3437100894Srwatson return (ENOSYS); 3438100894Srwatson} 3439100894Srwatson 3440100894Srwatsonint 3441100894Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3442100894Srwatson{ 3443100894Srwatson 3444100894Srwatson return (ENOSYS); 3445100894Srwatson} 3446100894Srwatson 3447100894Srwatsonint 3448100894Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3449100894Srwatson{ 3450100894Srwatson 3451100894Srwatson return (ENOSYS); 3452100894Srwatson} 3453100894Srwatson 3454100894Srwatsonint 3455100894Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3456100894Srwatson{ 3457100894Srwatson 3458100894Srwatson return (ENOSYS); 3459100894Srwatson} 3460100894Srwatson 3461100894Srwatsonint 3462100894Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3463100894Srwatson{ 3464100894Srwatson 3465100894Srwatson return (ENOSYS); 3466100894Srwatson} 3467100979Srwatson 3468102123Srwatsonint 3469102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3470102123Srwatson{ 3471102123Srwatson 3472102123Srwatson return (ENOSYS); 3473102123Srwatson} 3474102123Srwatson 3475100979Srwatson#endif /* !MAC */ 3476