mac_syscalls.c revision 103135
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_syscalls.c 103135 2002-09-09 17:10:16Z rwatson $ 40100894Srwatson */ 41100894Srwatson/* 42100894Srwatson * Developed by the TrustedBSD Project. 43100894Srwatson * 44100894Srwatson * Framework for extensible kernel access control. Kernel and userland 45100894Srwatson * interface to the framework, policy registration and composition. 46100894Srwatson */ 47100894Srwatson 48100894Srwatson#include "opt_mac.h" 49101173Srwatson 50100894Srwatson#include <sys/param.h> 51100979Srwatson#include <sys/extattr.h> 52100979Srwatson#include <sys/kernel.h> 53100979Srwatson#include <sys/lock.h> 54102949Sbde#include <sys/malloc.h> 55100979Srwatson#include <sys/mutex.h> 56100979Srwatson#include <sys/mac.h> 57101712Srwatson#include <sys/module.h> 58100979Srwatson#include <sys/proc.h> 59100979Srwatson#include <sys/systm.h> 60100894Srwatson#include <sys/sysproto.h> 61100894Srwatson#include <sys/sysent.h> 62100979Srwatson#include <sys/vnode.h> 63100979Srwatson#include <sys/mount.h> 64100979Srwatson#include <sys/file.h> 65100979Srwatson#include <sys/namei.h> 66100979Srwatson#include <sys/socket.h> 67100979Srwatson#include <sys/pipe.h> 68100979Srwatson#include <sys/socketvar.h> 69100979Srwatson#include <sys/sysctl.h> 70100894Srwatson 71100979Srwatson#include <vm/vm.h> 72100979Srwatson#include <vm/pmap.h> 73100979Srwatson#include <vm/vm_map.h> 74100979Srwatson#include <vm/vm_object.h> 75100979Srwatson 76100979Srwatson#include <sys/mac_policy.h> 77100979Srwatson 78100979Srwatson#include <fs/devfs/devfs.h> 79100979Srwatson 80100979Srwatson#include <net/bpfdesc.h> 81100979Srwatson#include <net/if.h> 82100979Srwatson#include <net/if_var.h> 83100979Srwatson 84100979Srwatson#include <netinet/in.h> 85100979Srwatson#include <netinet/ip_var.h> 86100979Srwatson 87100979Srwatson#ifdef MAC 88100979Srwatson 89101712Srwatson/* 90101712Srwatson * Declare that the kernel provides MAC support, version 1. This permits 91101712Srwatson * modules to refuse to be loaded if the necessary support isn't present, 92101712Srwatson * even if it's pre-boot. 93101712Srwatson */ 94101712SrwatsonMODULE_VERSION(kernel_mac_support, 1); 95101712Srwatson 96100979SrwatsonSYSCTL_DECL(_security); 97100979Srwatson 98100979SrwatsonSYSCTL_NODE(_security, OID_AUTO, mac, CTLFLAG_RW, 0, 99100979Srwatson "TrustedBSD MAC policy controls"); 100100979SrwatsonSYSCTL_NODE(_security_mac, OID_AUTO, debug, CTLFLAG_RW, 0, 101100979Srwatson "TrustedBSD MAC debug info"); 102100979Srwatson 103100979Srwatsonstatic int mac_debug_label_fallback = 0; 104100979SrwatsonSYSCTL_INT(_security_mac_debug, OID_AUTO, label_fallback, CTLFLAG_RW, 105100979Srwatson &mac_debug_label_fallback, 0, "Filesystems should fall back to fs label" 106100979Srwatson "when label is corrupted."); 107100979SrwatsonTUNABLE_INT("security.mac.debug_label_fallback", 108100979Srwatson &mac_debug_label_fallback); 109100979Srwatson 110100979Srwatson#ifndef MAC_MAX_POLICIES 111100979Srwatson#define MAC_MAX_POLICIES 8 112100979Srwatson#endif 113100979Srwatson#if MAC_MAX_POLICIES > 32 114100979Srwatson#error "MAC_MAX_POLICIES too large" 115100979Srwatson#endif 116100979Srwatsonstatic unsigned int mac_max_policies = MAC_MAX_POLICIES; 117100979Srwatsonstatic unsigned int mac_policy_offsets_free = (1 << MAC_MAX_POLICIES) - 1; 118100979SrwatsonSYSCTL_UINT(_security_mac, OID_AUTO, max_policies, CTLFLAG_RD, 119100979Srwatson &mac_max_policies, 0, ""); 120100979Srwatson 121100979Srwatsonstatic int mac_late = 0; 122100979Srwatson 123100979Srwatsonstatic int mac_enforce_fs = 1; 124100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_fs, CTLFLAG_RW, 125100979Srwatson &mac_enforce_fs, 0, "Enforce MAC policy on file system objects"); 126100979SrwatsonTUNABLE_INT("security.mac.enforce_fs", &mac_enforce_fs); 127100979Srwatson 128100979Srwatsonstatic int mac_enforce_network = 1; 129100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_network, CTLFLAG_RW, 130100979Srwatson &mac_enforce_network, 0, "Enforce MAC policy on network packets"); 131100979SrwatsonTUNABLE_INT("security.mac.enforce_network", &mac_enforce_network); 132100979Srwatson 133100979Srwatsonstatic int mac_enforce_process = 1; 134100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_process, CTLFLAG_RW, 135100979Srwatson &mac_enforce_process, 0, "Enforce MAC policy on inter-process operations"); 136100979SrwatsonTUNABLE_INT("security.mac.enforce_process", &mac_enforce_process); 137100979Srwatson 138100979Srwatsonstatic int mac_enforce_socket = 1; 139100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_socket, CTLFLAG_RW, 140100979Srwatson &mac_enforce_socket, 0, "Enforce MAC policy on socket operations"); 141100979SrwatsonTUNABLE_INT("security.mac.enforce_socket", &mac_enforce_socket); 142100979Srwatson 143100979Srwatsonstatic int mac_enforce_pipe = 1; 144100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_pipe, CTLFLAG_RW, 145100979Srwatson &mac_enforce_pipe, 0, "Enforce MAC policy on pipe operations"); 146100979Srwatson 147100979Srwatsonstatic int mac_label_size = sizeof(struct mac); 148100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, label_size, CTLFLAG_RD, 149100979Srwatson &mac_label_size, 0, "Pre-compiled MAC label size"); 150100979Srwatson 151100979Srwatsonstatic int mac_cache_fslabel_in_vnode = 1; 152100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, cache_fslabel_in_vnode, CTLFLAG_RW, 153100979Srwatson &mac_cache_fslabel_in_vnode, 0, "Cache mount fslabel in vnode"); 154100979SrwatsonTUNABLE_INT("security.mac.cache_fslabel_in_vnode", 155100979Srwatson &mac_cache_fslabel_in_vnode); 156100979Srwatson 157100979Srwatsonstatic int mac_vnode_label_cache_hits = 0; 158100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD, 159100979Srwatson &mac_vnode_label_cache_hits, 0, "Cache hits on vnode labels"); 160100979Srwatsonstatic int mac_vnode_label_cache_misses = 0; 161100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD, 162100979Srwatson &mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels"); 163101892Srwatsonstatic int mac_mmap_revocation_via_cow = 0; 164100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW, 165100979Srwatson &mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via " 166100979Srwatson "copy-on-write semantics, or by removing all write access"); 167100979Srwatson 168101988Srwatson#ifdef MAC_DEBUG 169100979Srwatsonstatic unsigned int nmacmbufs, nmaccreds, nmacifnets, nmacbpfdescs, 170100979Srwatson nmacsockets, nmacmounts, nmactemp, nmacvnodes, nmacdevfsdirents, 171100979Srwatson nmacipqs, nmacpipes; 172100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, mbufs, CTLFLAG_RD, 173100979Srwatson &nmacmbufs, 0, "number of mbufs in use"); 174100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, creds, CTLFLAG_RD, 175100979Srwatson &nmaccreds, 0, "number of ucreds in use"); 176100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, ifnets, CTLFLAG_RD, 177100979Srwatson &nmacifnets, 0, "number of ifnets in use"); 178100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, ipqs, CTLFLAG_RD, 179100979Srwatson &nmacipqs, 0, "number of ipqs in use"); 180100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, bpfdescs, CTLFLAG_RD, 181100979Srwatson &nmacbpfdescs, 0, "number of bpfdescs in use"); 182100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, sockets, CTLFLAG_RD, 183100979Srwatson &nmacsockets, 0, "number of sockets in use"); 184100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, pipes, CTLFLAG_RD, 185100979Srwatson &nmacpipes, 0, "number of pipes in use"); 186100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, mounts, CTLFLAG_RD, 187100979Srwatson &nmacmounts, 0, "number of mounts in use"); 188100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, temp, CTLFLAG_RD, 189100979Srwatson &nmactemp, 0, "number of temporary labels in use"); 190100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, vnodes, CTLFLAG_RD, 191100979Srwatson &nmacvnodes, 0, "number of vnodes in use"); 192100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, devfsdirents, CTLFLAG_RD, 193100979Srwatson &nmacdevfsdirents, 0, "number of devfs dirents inuse"); 194101988Srwatson#endif 195100979Srwatson 196100979Srwatsonstatic int error_select(int error1, int error2); 197100979Srwatsonstatic int mac_externalize(struct label *label, struct mac *mac); 198100979Srwatsonstatic int mac_policy_register(struct mac_policy_conf *mpc); 199100979Srwatsonstatic int mac_policy_unregister(struct mac_policy_conf *mpc); 200100979Srwatson 201100979Srwatsonstatic int mac_stdcreatevnode_ea(struct vnode *vp); 202100979Srwatsonstatic void mac_cred_mmapped_drop_perms(struct thread *td, 203100979Srwatson struct ucred *cred); 204100979Srwatsonstatic void mac_cred_mmapped_drop_perms_recurse(struct thread *td, 205100979Srwatson struct ucred *cred, struct vm_map *map); 206100979Srwatson 207100979SrwatsonMALLOC_DEFINE(M_MACOPVEC, "macopvec", "MAC policy operation vector"); 208100979SrwatsonMALLOC_DEFINE(M_MACPIPELABEL, "macpipelabel", "MAC labels for pipes"); 209100979Srwatson 210100979Srwatson/* 211100979Srwatson * mac_policy_list_lock protects the consistency of 'mac_policy_list', 212100979Srwatson * the linked list of attached policy modules. Read-only consumers of 213100979Srwatson * the list must acquire a shared lock for the duration of their use; 214100979Srwatson * writers must acquire an exclusive lock. Note that for compound 215100979Srwatson * operations, locks should be held for the entire compound operation, 216100979Srwatson * and that this is not yet done for relabel requests. 217100979Srwatson */ 218100979Srwatsonstatic struct mtx mac_policy_list_lock; 219100979Srwatsonstatic LIST_HEAD(, mac_policy_conf) mac_policy_list; 220100979Srwatsonstatic int mac_policy_list_busy; 221100979Srwatson#define MAC_POLICY_LIST_LOCKINIT() mtx_init(&mac_policy_list_lock, \ 222100979Srwatson "mac_policy_list_lock", NULL, MTX_DEF); 223100979Srwatson#define MAC_POLICY_LIST_LOCK() mtx_lock(&mac_policy_list_lock); 224100979Srwatson#define MAC_POLICY_LIST_UNLOCK() mtx_unlock(&mac_policy_list_lock); 225100979Srwatson 226100979Srwatson#define MAC_POLICY_LIST_BUSY() do { \ 227100979Srwatson MAC_POLICY_LIST_LOCK(); \ 228100979Srwatson mac_policy_list_busy++; \ 229100979Srwatson MAC_POLICY_LIST_UNLOCK(); \ 230100979Srwatson} while (0) 231100979Srwatson 232100979Srwatson#define MAC_POLICY_LIST_UNBUSY() do { \ 233100979Srwatson MAC_POLICY_LIST_LOCK(); \ 234100979Srwatson mac_policy_list_busy--; \ 235100979Srwatson if (mac_policy_list_busy < 0) \ 236100979Srwatson panic("Extra mac_policy_list_busy--"); \ 237100979Srwatson MAC_POLICY_LIST_UNLOCK(); \ 238100979Srwatson} while (0) 239100979Srwatson 240100979Srwatson/* 241100979Srwatson * MAC_CHECK performs the designated check by walking the policy 242100979Srwatson * module list and checking with each as to how it feels about the 243100979Srwatson * request. Note that it returns its value via 'error' in the scope 244100979Srwatson * of the caller. 245100979Srwatson */ 246100979Srwatson#define MAC_CHECK(check, args...) do { \ 247100979Srwatson struct mac_policy_conf *mpc; \ 248100979Srwatson \ 249100979Srwatson error = 0; \ 250100979Srwatson MAC_POLICY_LIST_BUSY(); \ 251100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 252100979Srwatson if (mpc->mpc_ops->mpo_ ## check != NULL) \ 253100979Srwatson error = error_select( \ 254100979Srwatson mpc->mpc_ops->mpo_ ## check (args), \ 255100979Srwatson error); \ 256100979Srwatson } \ 257100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 258100979Srwatson} while (0) 259100979Srwatson 260100979Srwatson/* 261100979Srwatson * MAC_BOOLEAN performs the designated boolean composition by walking 262100979Srwatson * the module list, invoking each instance of the operation, and 263100979Srwatson * combining the results using the passed C operator. Note that it 264100979Srwatson * returns its value via 'result' in the scope of the caller, which 265100979Srwatson * should be initialized by the caller in a meaningful way to get 266100979Srwatson * a meaningful result. 267100979Srwatson */ 268100979Srwatson#define MAC_BOOLEAN(operation, composition, args...) do { \ 269100979Srwatson struct mac_policy_conf *mpc; \ 270100979Srwatson \ 271100979Srwatson MAC_POLICY_LIST_BUSY(); \ 272100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 273100979Srwatson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 274100979Srwatson result = result composition \ 275100979Srwatson mpc->mpc_ops->mpo_ ## operation (args); \ 276100979Srwatson } \ 277100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 278100979Srwatson} while (0) 279100979Srwatson 280100979Srwatson/* 281100979Srwatson * MAC_PERFORM performs the designated operation by walking the policy 282100979Srwatson * module list and invoking that operation for each policy. 283100979Srwatson */ 284100979Srwatson#define MAC_PERFORM(operation, args...) do { \ 285100979Srwatson struct mac_policy_conf *mpc; \ 286100979Srwatson \ 287100979Srwatson MAC_POLICY_LIST_BUSY(); \ 288100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 289100979Srwatson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 290100979Srwatson mpc->mpc_ops->mpo_ ## operation (args); \ 291100979Srwatson } \ 292100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 293100979Srwatson} while (0) 294100979Srwatson 295100979Srwatson/* 296100979Srwatson * Initialize the MAC subsystem, including appropriate SMP locks. 297100979Srwatson */ 298100979Srwatsonstatic void 299100979Srwatsonmac_init(void) 300100979Srwatson{ 301100979Srwatson 302100979Srwatson LIST_INIT(&mac_policy_list); 303100979Srwatson MAC_POLICY_LIST_LOCKINIT(); 304100979Srwatson} 305100979Srwatson 306100979Srwatson/* 307100979Srwatson * For the purposes of modules that want to know if they were loaded 308100979Srwatson * "early", set the mac_late flag once we've processed modules either 309100979Srwatson * linked into the kernel, or loaded before the kernel startup. 310100979Srwatson */ 311100979Srwatsonstatic void 312100979Srwatsonmac_late_init(void) 313100979Srwatson{ 314100979Srwatson 315100979Srwatson mac_late = 1; 316100979Srwatson} 317100979Srwatson 318100979Srwatson/* 319100979Srwatson * Allow MAC policy modules to register during boot, etc. 320100979Srwatson */ 321100894Srwatsonint 322100979Srwatsonmac_policy_modevent(module_t mod, int type, void *data) 323100979Srwatson{ 324100979Srwatson struct mac_policy_conf *mpc; 325100979Srwatson int error; 326100979Srwatson 327100979Srwatson error = 0; 328100979Srwatson mpc = (struct mac_policy_conf *) data; 329100979Srwatson 330100979Srwatson switch (type) { 331100979Srwatson case MOD_LOAD: 332100979Srwatson if (mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_NOTLATE && 333100979Srwatson mac_late) { 334100979Srwatson printf("mac_policy_modevent: can't load %s policy " 335100979Srwatson "after booting\n", mpc->mpc_name); 336100979Srwatson error = EBUSY; 337100979Srwatson break; 338100979Srwatson } 339100979Srwatson error = mac_policy_register(mpc); 340100979Srwatson break; 341100979Srwatson case MOD_UNLOAD: 342100979Srwatson /* Don't unregister the module if it was never registered. */ 343100979Srwatson if ((mpc->mpc_runtime_flags & MPC_RUNTIME_FLAG_REGISTERED) 344100979Srwatson != 0) 345100979Srwatson error = mac_policy_unregister(mpc); 346100979Srwatson else 347100979Srwatson error = 0; 348100979Srwatson break; 349100979Srwatson default: 350100979Srwatson break; 351100979Srwatson } 352100979Srwatson 353100979Srwatson return (error); 354100979Srwatson} 355100979Srwatson 356100979Srwatsonstatic int 357100979Srwatsonmac_policy_register(struct mac_policy_conf *mpc) 358100979Srwatson{ 359100979Srwatson struct mac_policy_conf *tmpc; 360100979Srwatson struct mac_policy_ops *ops; 361100979Srwatson struct mac_policy_op_entry *mpe; 362100979Srwatson int slot; 363100979Srwatson 364100979Srwatson MALLOC(mpc->mpc_ops, struct mac_policy_ops *, sizeof(*ops), M_MACOPVEC, 365100979Srwatson M_WAITOK | M_ZERO); 366100979Srwatson for (mpe = mpc->mpc_entries; mpe->mpe_constant != MAC_OP_LAST; mpe++) { 367100979Srwatson switch (mpe->mpe_constant) { 368100979Srwatson case MAC_OP_LAST: 369100979Srwatson /* 370100979Srwatson * Doesn't actually happen, but this allows checking 371100979Srwatson * that all enumerated values are handled. 372100979Srwatson */ 373100979Srwatson break; 374100979Srwatson case MAC_DESTROY: 375100979Srwatson mpc->mpc_ops->mpo_destroy = 376100979Srwatson mpe->mpe_function; 377100979Srwatson break; 378100979Srwatson case MAC_INIT: 379100979Srwatson mpc->mpc_ops->mpo_init = 380100979Srwatson mpe->mpe_function; 381100979Srwatson break; 382102123Srwatson case MAC_SYSCALL: 383102123Srwatson mpc->mpc_ops->mpo_syscall = 384102123Srwatson mpe->mpe_function; 385102123Srwatson break; 386100979Srwatson case MAC_INIT_BPFDESC: 387100979Srwatson mpc->mpc_ops->mpo_init_bpfdesc = 388100979Srwatson mpe->mpe_function; 389100979Srwatson break; 390100979Srwatson case MAC_INIT_CRED: 391100979Srwatson mpc->mpc_ops->mpo_init_cred = 392100979Srwatson mpe->mpe_function; 393100979Srwatson break; 394100979Srwatson case MAC_INIT_DEVFSDIRENT: 395100979Srwatson mpc->mpc_ops->mpo_init_devfsdirent = 396100979Srwatson mpe->mpe_function; 397100979Srwatson break; 398100979Srwatson case MAC_INIT_IFNET: 399100979Srwatson mpc->mpc_ops->mpo_init_ifnet = 400100979Srwatson mpe->mpe_function; 401100979Srwatson break; 402100979Srwatson case MAC_INIT_IPQ: 403100979Srwatson mpc->mpc_ops->mpo_init_ipq = 404100979Srwatson mpe->mpe_function; 405100979Srwatson break; 406100979Srwatson case MAC_INIT_MBUF: 407100979Srwatson mpc->mpc_ops->mpo_init_mbuf = 408100979Srwatson mpe->mpe_function; 409100979Srwatson break; 410100979Srwatson case MAC_INIT_MOUNT: 411100979Srwatson mpc->mpc_ops->mpo_init_mount = 412100979Srwatson mpe->mpe_function; 413100979Srwatson break; 414100979Srwatson case MAC_INIT_PIPE: 415100979Srwatson mpc->mpc_ops->mpo_init_pipe = 416100979Srwatson mpe->mpe_function; 417100979Srwatson break; 418100979Srwatson case MAC_INIT_SOCKET: 419100979Srwatson mpc->mpc_ops->mpo_init_socket = 420100979Srwatson mpe->mpe_function; 421100979Srwatson break; 422100979Srwatson case MAC_INIT_TEMP: 423100979Srwatson mpc->mpc_ops->mpo_init_temp = 424100979Srwatson mpe->mpe_function; 425100979Srwatson break; 426100979Srwatson case MAC_INIT_VNODE: 427100979Srwatson mpc->mpc_ops->mpo_init_vnode = 428100979Srwatson mpe->mpe_function; 429100979Srwatson break; 430100979Srwatson case MAC_DESTROY_BPFDESC: 431100979Srwatson mpc->mpc_ops->mpo_destroy_bpfdesc = 432100979Srwatson mpe->mpe_function; 433100979Srwatson break; 434100979Srwatson case MAC_DESTROY_CRED: 435100979Srwatson mpc->mpc_ops->mpo_destroy_cred = 436100979Srwatson mpe->mpe_function; 437100979Srwatson break; 438100979Srwatson case MAC_DESTROY_DEVFSDIRENT: 439100979Srwatson mpc->mpc_ops->mpo_destroy_devfsdirent = 440100979Srwatson mpe->mpe_function; 441100979Srwatson break; 442100979Srwatson case MAC_DESTROY_IFNET: 443100979Srwatson mpc->mpc_ops->mpo_destroy_ifnet = 444100979Srwatson mpe->mpe_function; 445100979Srwatson break; 446100979Srwatson case MAC_DESTROY_IPQ: 447100979Srwatson mpc->mpc_ops->mpo_destroy_ipq = 448100979Srwatson mpe->mpe_function; 449100979Srwatson break; 450100979Srwatson case MAC_DESTROY_MBUF: 451100979Srwatson mpc->mpc_ops->mpo_destroy_mbuf = 452100979Srwatson mpe->mpe_function; 453100979Srwatson break; 454100979Srwatson case MAC_DESTROY_MOUNT: 455100979Srwatson mpc->mpc_ops->mpo_destroy_mount = 456100979Srwatson mpe->mpe_function; 457100979Srwatson break; 458100979Srwatson case MAC_DESTROY_PIPE: 459100979Srwatson mpc->mpc_ops->mpo_destroy_pipe = 460100979Srwatson mpe->mpe_function; 461100979Srwatson break; 462100979Srwatson case MAC_DESTROY_SOCKET: 463100979Srwatson mpc->mpc_ops->mpo_destroy_socket = 464100979Srwatson mpe->mpe_function; 465100979Srwatson break; 466100979Srwatson case MAC_DESTROY_TEMP: 467100979Srwatson mpc->mpc_ops->mpo_destroy_temp = 468100979Srwatson mpe->mpe_function; 469100979Srwatson break; 470100979Srwatson case MAC_DESTROY_VNODE: 471100979Srwatson mpc->mpc_ops->mpo_destroy_vnode = 472100979Srwatson mpe->mpe_function; 473100979Srwatson break; 474100979Srwatson case MAC_EXTERNALIZE: 475100979Srwatson mpc->mpc_ops->mpo_externalize = 476100979Srwatson mpe->mpe_function; 477100979Srwatson break; 478100979Srwatson case MAC_INTERNALIZE: 479100979Srwatson mpc->mpc_ops->mpo_internalize = 480100979Srwatson mpe->mpe_function; 481100979Srwatson break; 482100979Srwatson case MAC_CREATE_DEVFS_DEVICE: 483100979Srwatson mpc->mpc_ops->mpo_create_devfs_device = 484100979Srwatson mpe->mpe_function; 485100979Srwatson break; 486100979Srwatson case MAC_CREATE_DEVFS_DIRECTORY: 487100979Srwatson mpc->mpc_ops->mpo_create_devfs_directory = 488100979Srwatson mpe->mpe_function; 489100979Srwatson break; 490100979Srwatson case MAC_CREATE_DEVFS_VNODE: 491100979Srwatson mpc->mpc_ops->mpo_create_devfs_vnode = 492100979Srwatson mpe->mpe_function; 493100979Srwatson break; 494100979Srwatson case MAC_STDCREATEVNODE_EA: 495100979Srwatson mpc->mpc_ops->mpo_stdcreatevnode_ea = 496100979Srwatson mpe->mpe_function; 497100979Srwatson break; 498100979Srwatson case MAC_CREATE_VNODE: 499100979Srwatson mpc->mpc_ops->mpo_create_vnode = 500100979Srwatson mpe->mpe_function; 501100979Srwatson break; 502100979Srwatson case MAC_CREATE_MOUNT: 503100979Srwatson mpc->mpc_ops->mpo_create_mount = 504100979Srwatson mpe->mpe_function; 505100979Srwatson break; 506100979Srwatson case MAC_CREATE_ROOT_MOUNT: 507100979Srwatson mpc->mpc_ops->mpo_create_root_mount = 508100979Srwatson mpe->mpe_function; 509100979Srwatson break; 510100979Srwatson case MAC_RELABEL_VNODE: 511100979Srwatson mpc->mpc_ops->mpo_relabel_vnode = 512100979Srwatson mpe->mpe_function; 513100979Srwatson break; 514100979Srwatson case MAC_UPDATE_DEVFSDIRENT: 515100979Srwatson mpc->mpc_ops->mpo_update_devfsdirent = 516100979Srwatson mpe->mpe_function; 517100979Srwatson break; 518100979Srwatson case MAC_UPDATE_PROCFSVNODE: 519100979Srwatson mpc->mpc_ops->mpo_update_procfsvnode = 520100979Srwatson mpe->mpe_function; 521100979Srwatson break; 522100979Srwatson case MAC_UPDATE_VNODE_FROM_EXTATTR: 523100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_extattr = 524100979Srwatson mpe->mpe_function; 525100979Srwatson break; 526100979Srwatson case MAC_UPDATE_VNODE_FROM_EXTERNALIZED: 527100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_externalized = 528100979Srwatson mpe->mpe_function; 529100979Srwatson break; 530100979Srwatson case MAC_UPDATE_VNODE_FROM_MOUNT: 531100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_mount = 532100979Srwatson mpe->mpe_function; 533100979Srwatson break; 534100979Srwatson case MAC_CREATE_MBUF_FROM_SOCKET: 535100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_socket = 536100979Srwatson mpe->mpe_function; 537100979Srwatson break; 538100979Srwatson case MAC_CREATE_PIPE: 539100979Srwatson mpc->mpc_ops->mpo_create_pipe = 540100979Srwatson mpe->mpe_function; 541100979Srwatson break; 542100979Srwatson case MAC_CREATE_SOCKET: 543100979Srwatson mpc->mpc_ops->mpo_create_socket = 544100979Srwatson mpe->mpe_function; 545100979Srwatson break; 546100979Srwatson case MAC_CREATE_SOCKET_FROM_SOCKET: 547100979Srwatson mpc->mpc_ops->mpo_create_socket_from_socket = 548100979Srwatson mpe->mpe_function; 549100979Srwatson break; 550100979Srwatson case MAC_RELABEL_PIPE: 551100979Srwatson mpc->mpc_ops->mpo_relabel_pipe = 552100979Srwatson mpe->mpe_function; 553100979Srwatson break; 554100979Srwatson case MAC_RELABEL_SOCKET: 555100979Srwatson mpc->mpc_ops->mpo_relabel_socket = 556100979Srwatson mpe->mpe_function; 557100979Srwatson break; 558100979Srwatson case MAC_SET_SOCKET_PEER_FROM_MBUF: 559100979Srwatson mpc->mpc_ops->mpo_set_socket_peer_from_mbuf = 560100979Srwatson mpe->mpe_function; 561100979Srwatson break; 562100979Srwatson case MAC_SET_SOCKET_PEER_FROM_SOCKET: 563100979Srwatson mpc->mpc_ops->mpo_set_socket_peer_from_socket = 564100979Srwatson mpe->mpe_function; 565100979Srwatson break; 566100979Srwatson case MAC_CREATE_BPFDESC: 567100979Srwatson mpc->mpc_ops->mpo_create_bpfdesc = 568100979Srwatson mpe->mpe_function; 569100979Srwatson break; 570100979Srwatson case MAC_CREATE_DATAGRAM_FROM_IPQ: 571100979Srwatson mpc->mpc_ops->mpo_create_datagram_from_ipq = 572100979Srwatson mpe->mpe_function; 573100979Srwatson break; 574100979Srwatson case MAC_CREATE_FRAGMENT: 575100979Srwatson mpc->mpc_ops->mpo_create_fragment = 576100979Srwatson mpe->mpe_function; 577100979Srwatson break; 578100979Srwatson case MAC_CREATE_IFNET: 579100979Srwatson mpc->mpc_ops->mpo_create_ifnet = 580100979Srwatson mpe->mpe_function; 581100979Srwatson break; 582100979Srwatson case MAC_CREATE_IPQ: 583100979Srwatson mpc->mpc_ops->mpo_create_ipq = 584100979Srwatson mpe->mpe_function; 585100979Srwatson break; 586100979Srwatson case MAC_CREATE_MBUF_FROM_MBUF: 587100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_mbuf = 588100979Srwatson mpe->mpe_function; 589100979Srwatson break; 590100979Srwatson case MAC_CREATE_MBUF_LINKLAYER: 591100979Srwatson mpc->mpc_ops->mpo_create_mbuf_linklayer = 592100979Srwatson mpe->mpe_function; 593100979Srwatson break; 594100979Srwatson case MAC_CREATE_MBUF_FROM_BPFDESC: 595100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_bpfdesc = 596100979Srwatson mpe->mpe_function; 597100979Srwatson break; 598100979Srwatson case MAC_CREATE_MBUF_FROM_IFNET: 599100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_ifnet = 600100979Srwatson mpe->mpe_function; 601100979Srwatson break; 602100979Srwatson case MAC_CREATE_MBUF_MULTICAST_ENCAP: 603100979Srwatson mpc->mpc_ops->mpo_create_mbuf_multicast_encap = 604100979Srwatson mpe->mpe_function; 605100979Srwatson break; 606100979Srwatson case MAC_CREATE_MBUF_NETLAYER: 607100979Srwatson mpc->mpc_ops->mpo_create_mbuf_netlayer = 608100979Srwatson mpe->mpe_function; 609100979Srwatson break; 610100979Srwatson case MAC_FRAGMENT_MATCH: 611100979Srwatson mpc->mpc_ops->mpo_fragment_match = 612100979Srwatson mpe->mpe_function; 613100979Srwatson break; 614100979Srwatson case MAC_RELABEL_IFNET: 615100979Srwatson mpc->mpc_ops->mpo_relabel_ifnet = 616100979Srwatson mpe->mpe_function; 617100979Srwatson break; 618100979Srwatson case MAC_UPDATE_IPQ: 619100979Srwatson mpc->mpc_ops->mpo_update_ipq = 620100979Srwatson mpe->mpe_function; 621100979Srwatson break; 622100979Srwatson case MAC_CREATE_CRED: 623100979Srwatson mpc->mpc_ops->mpo_create_cred = 624100979Srwatson mpe->mpe_function; 625100979Srwatson break; 626100979Srwatson case MAC_EXECVE_TRANSITION: 627100979Srwatson mpc->mpc_ops->mpo_execve_transition = 628100979Srwatson mpe->mpe_function; 629100979Srwatson break; 630100979Srwatson case MAC_EXECVE_WILL_TRANSITION: 631100979Srwatson mpc->mpc_ops->mpo_execve_will_transition = 632100979Srwatson mpe->mpe_function; 633100979Srwatson break; 634100979Srwatson case MAC_CREATE_PROC0: 635100979Srwatson mpc->mpc_ops->mpo_create_proc0 = mpe->mpe_function; 636100979Srwatson break; 637100979Srwatson case MAC_CREATE_PROC1: 638100979Srwatson mpc->mpc_ops->mpo_create_proc1 = mpe->mpe_function; 639100979Srwatson break; 640100979Srwatson case MAC_RELABEL_CRED: 641100979Srwatson mpc->mpc_ops->mpo_relabel_cred = 642100979Srwatson mpe->mpe_function; 643100979Srwatson break; 644100979Srwatson case MAC_CHECK_BPFDESC_RECEIVE: 645100979Srwatson mpc->mpc_ops->mpo_check_bpfdesc_receive = 646100979Srwatson mpe->mpe_function; 647100979Srwatson break; 648100979Srwatson case MAC_CHECK_CRED_RELABEL: 649100979Srwatson mpc->mpc_ops->mpo_check_cred_relabel = 650100979Srwatson mpe->mpe_function; 651100979Srwatson break; 652100979Srwatson case MAC_CHECK_CRED_VISIBLE: 653100979Srwatson mpc->mpc_ops->mpo_check_cred_visible = 654100979Srwatson mpe->mpe_function; 655100979Srwatson break; 656100979Srwatson case MAC_CHECK_IFNET_RELABEL: 657100979Srwatson mpc->mpc_ops->mpo_check_ifnet_relabel = 658100979Srwatson mpe->mpe_function; 659100979Srwatson break; 660100979Srwatson case MAC_CHECK_IFNET_TRANSMIT: 661100979Srwatson mpc->mpc_ops->mpo_check_ifnet_transmit = 662100979Srwatson mpe->mpe_function; 663100979Srwatson break; 664100979Srwatson case MAC_CHECK_MOUNT_STAT: 665100979Srwatson mpc->mpc_ops->mpo_check_mount_stat = 666100979Srwatson mpe->mpe_function; 667100979Srwatson break; 668100979Srwatson case MAC_CHECK_PIPE_IOCTL: 669100979Srwatson mpc->mpc_ops->mpo_check_pipe_ioctl = 670100979Srwatson mpe->mpe_function; 671100979Srwatson break; 672102115Srwatson case MAC_CHECK_PIPE_POLL: 673102115Srwatson mpc->mpc_ops->mpo_check_pipe_poll = 674100979Srwatson mpe->mpe_function; 675100979Srwatson break; 676102115Srwatson case MAC_CHECK_PIPE_READ: 677102115Srwatson mpc->mpc_ops->mpo_check_pipe_read = 678102115Srwatson mpe->mpe_function; 679102115Srwatson break; 680100979Srwatson case MAC_CHECK_PIPE_RELABEL: 681100979Srwatson mpc->mpc_ops->mpo_check_pipe_relabel = 682100979Srwatson mpe->mpe_function; 683100979Srwatson break; 684102115Srwatson case MAC_CHECK_PIPE_STAT: 685102115Srwatson mpc->mpc_ops->mpo_check_pipe_stat = 686102115Srwatson mpe->mpe_function; 687102115Srwatson break; 688102115Srwatson case MAC_CHECK_PIPE_WRITE: 689102115Srwatson mpc->mpc_ops->mpo_check_pipe_write = 690102115Srwatson mpe->mpe_function; 691102115Srwatson break; 692100979Srwatson case MAC_CHECK_PROC_DEBUG: 693100979Srwatson mpc->mpc_ops->mpo_check_proc_debug = 694100979Srwatson mpe->mpe_function; 695100979Srwatson break; 696100979Srwatson case MAC_CHECK_PROC_SCHED: 697100979Srwatson mpc->mpc_ops->mpo_check_proc_sched = 698100979Srwatson mpe->mpe_function; 699100979Srwatson break; 700100979Srwatson case MAC_CHECK_PROC_SIGNAL: 701100979Srwatson mpc->mpc_ops->mpo_check_proc_signal = 702100979Srwatson mpe->mpe_function; 703100979Srwatson break; 704100979Srwatson case MAC_CHECK_SOCKET_BIND: 705100979Srwatson mpc->mpc_ops->mpo_check_socket_bind = 706100979Srwatson mpe->mpe_function; 707100979Srwatson break; 708100979Srwatson case MAC_CHECK_SOCKET_CONNECT: 709100979Srwatson mpc->mpc_ops->mpo_check_socket_connect = 710100979Srwatson mpe->mpe_function; 711100979Srwatson break; 712101933Srwatson case MAC_CHECK_SOCKET_DELIVER: 713101933Srwatson mpc->mpc_ops->mpo_check_socket_deliver = 714101933Srwatson mpe->mpe_function; 715101933Srwatson break; 716100979Srwatson case MAC_CHECK_SOCKET_LISTEN: 717100979Srwatson mpc->mpc_ops->mpo_check_socket_listen = 718100979Srwatson mpe->mpe_function; 719100979Srwatson break; 720100979Srwatson case MAC_CHECK_SOCKET_RELABEL: 721100979Srwatson mpc->mpc_ops->mpo_check_socket_relabel = 722100979Srwatson mpe->mpe_function; 723100979Srwatson break; 724100979Srwatson case MAC_CHECK_SOCKET_VISIBLE: 725100979Srwatson mpc->mpc_ops->mpo_check_socket_visible = 726100979Srwatson mpe->mpe_function; 727100979Srwatson break; 728100979Srwatson case MAC_CHECK_VNODE_ACCESS: 729100979Srwatson mpc->mpc_ops->mpo_check_vnode_access = 730100979Srwatson mpe->mpe_function; 731100979Srwatson break; 732100979Srwatson case MAC_CHECK_VNODE_CHDIR: 733100979Srwatson mpc->mpc_ops->mpo_check_vnode_chdir = 734100979Srwatson mpe->mpe_function; 735100979Srwatson break; 736100979Srwatson case MAC_CHECK_VNODE_CHROOT: 737100979Srwatson mpc->mpc_ops->mpo_check_vnode_chroot = 738100979Srwatson mpe->mpe_function; 739100979Srwatson break; 740100979Srwatson case MAC_CHECK_VNODE_CREATE: 741100979Srwatson mpc->mpc_ops->mpo_check_vnode_create = 742100979Srwatson mpe->mpe_function; 743100979Srwatson break; 744100979Srwatson case MAC_CHECK_VNODE_DELETE: 745100979Srwatson mpc->mpc_ops->mpo_check_vnode_delete = 746100979Srwatson mpe->mpe_function; 747100979Srwatson break; 748100979Srwatson case MAC_CHECK_VNODE_DELETEACL: 749100979Srwatson mpc->mpc_ops->mpo_check_vnode_deleteacl = 750100979Srwatson mpe->mpe_function; 751100979Srwatson break; 752100979Srwatson case MAC_CHECK_VNODE_EXEC: 753100979Srwatson mpc->mpc_ops->mpo_check_vnode_exec = 754100979Srwatson mpe->mpe_function; 755100979Srwatson break; 756100979Srwatson case MAC_CHECK_VNODE_GETACL: 757100979Srwatson mpc->mpc_ops->mpo_check_vnode_getacl = 758100979Srwatson mpe->mpe_function; 759100979Srwatson break; 760100979Srwatson case MAC_CHECK_VNODE_GETEXTATTR: 761100979Srwatson mpc->mpc_ops->mpo_check_vnode_getextattr = 762100979Srwatson mpe->mpe_function; 763100979Srwatson break; 764100979Srwatson case MAC_CHECK_VNODE_LOOKUP: 765100979Srwatson mpc->mpc_ops->mpo_check_vnode_lookup = 766100979Srwatson mpe->mpe_function; 767100979Srwatson break; 768100979Srwatson case MAC_CHECK_VNODE_MMAP_PERMS: 769100979Srwatson mpc->mpc_ops->mpo_check_vnode_mmap_perms = 770100979Srwatson mpe->mpe_function; 771100979Srwatson break; 772100979Srwatson case MAC_CHECK_VNODE_OPEN: 773100979Srwatson mpc->mpc_ops->mpo_check_vnode_open = 774100979Srwatson mpe->mpe_function; 775100979Srwatson break; 776102112Srwatson case MAC_CHECK_VNODE_POLL: 777102112Srwatson mpc->mpc_ops->mpo_check_vnode_poll = 778102112Srwatson mpe->mpe_function; 779102112Srwatson break; 780102112Srwatson case MAC_CHECK_VNODE_READ: 781102112Srwatson mpc->mpc_ops->mpo_check_vnode_read = 782102112Srwatson mpe->mpe_function; 783102112Srwatson break; 784100979Srwatson case MAC_CHECK_VNODE_READDIR: 785100979Srwatson mpc->mpc_ops->mpo_check_vnode_readdir = 786100979Srwatson mpe->mpe_function; 787100979Srwatson break; 788100979Srwatson case MAC_CHECK_VNODE_READLINK: 789100979Srwatson mpc->mpc_ops->mpo_check_vnode_readlink = 790100979Srwatson mpe->mpe_function; 791100979Srwatson break; 792100979Srwatson case MAC_CHECK_VNODE_RELABEL: 793100979Srwatson mpc->mpc_ops->mpo_check_vnode_relabel = 794100979Srwatson mpe->mpe_function; 795100979Srwatson break; 796100979Srwatson case MAC_CHECK_VNODE_RENAME_FROM: 797100979Srwatson mpc->mpc_ops->mpo_check_vnode_rename_from = 798100979Srwatson mpe->mpe_function; 799100979Srwatson break; 800100979Srwatson case MAC_CHECK_VNODE_RENAME_TO: 801100979Srwatson mpc->mpc_ops->mpo_check_vnode_rename_to = 802100979Srwatson mpe->mpe_function; 803100979Srwatson break; 804100979Srwatson case MAC_CHECK_VNODE_REVOKE: 805100979Srwatson mpc->mpc_ops->mpo_check_vnode_revoke = 806100979Srwatson mpe->mpe_function; 807100979Srwatson break; 808100979Srwatson case MAC_CHECK_VNODE_SETACL: 809100979Srwatson mpc->mpc_ops->mpo_check_vnode_setacl = 810100979Srwatson mpe->mpe_function; 811100979Srwatson break; 812100979Srwatson case MAC_CHECK_VNODE_SETEXTATTR: 813100979Srwatson mpc->mpc_ops->mpo_check_vnode_setextattr = 814100979Srwatson mpe->mpe_function; 815100979Srwatson break; 816100979Srwatson case MAC_CHECK_VNODE_SETFLAGS: 817100979Srwatson mpc->mpc_ops->mpo_check_vnode_setflags = 818100979Srwatson mpe->mpe_function; 819100979Srwatson break; 820100979Srwatson case MAC_CHECK_VNODE_SETMODE: 821100979Srwatson mpc->mpc_ops->mpo_check_vnode_setmode = 822100979Srwatson mpe->mpe_function; 823100979Srwatson break; 824100979Srwatson case MAC_CHECK_VNODE_SETOWNER: 825100979Srwatson mpc->mpc_ops->mpo_check_vnode_setowner = 826100979Srwatson mpe->mpe_function; 827100979Srwatson break; 828100979Srwatson case MAC_CHECK_VNODE_SETUTIMES: 829100979Srwatson mpc->mpc_ops->mpo_check_vnode_setutimes = 830100979Srwatson mpe->mpe_function; 831100979Srwatson break; 832100979Srwatson case MAC_CHECK_VNODE_STAT: 833100979Srwatson mpc->mpc_ops->mpo_check_vnode_stat = 834100979Srwatson mpe->mpe_function; 835100979Srwatson break; 836102112Srwatson case MAC_CHECK_VNODE_WRITE: 837102112Srwatson mpc->mpc_ops->mpo_check_vnode_write = 838102112Srwatson mpe->mpe_function; 839102112Srwatson break; 840100979Srwatson/* 841100979Srwatson default: 842100979Srwatson printf("MAC policy `%s': unknown operation %d\n", 843100979Srwatson mpc->mpc_name, mpe->mpe_constant); 844100979Srwatson return (EINVAL); 845100979Srwatson*/ 846100979Srwatson } 847100979Srwatson } 848100979Srwatson MAC_POLICY_LIST_LOCK(); 849100979Srwatson if (mac_policy_list_busy > 0) { 850100979Srwatson MAC_POLICY_LIST_UNLOCK(); 851100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 852100979Srwatson mpc->mpc_ops = NULL; 853100979Srwatson return (EBUSY); 854100979Srwatson } 855100979Srwatson LIST_FOREACH(tmpc, &mac_policy_list, mpc_list) { 856100979Srwatson if (strcmp(tmpc->mpc_name, mpc->mpc_name) == 0) { 857100979Srwatson MAC_POLICY_LIST_UNLOCK(); 858100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 859100979Srwatson mpc->mpc_ops = NULL; 860100979Srwatson return (EEXIST); 861100979Srwatson } 862100979Srwatson } 863100979Srwatson if (mpc->mpc_field_off != NULL) { 864100979Srwatson slot = ffs(mac_policy_offsets_free); 865100979Srwatson if (slot == 0) { 866100979Srwatson MAC_POLICY_LIST_UNLOCK(); 867100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 868100979Srwatson mpc->mpc_ops = NULL; 869100979Srwatson return (ENOMEM); 870100979Srwatson } 871100979Srwatson slot--; 872100979Srwatson mac_policy_offsets_free &= ~(1 << slot); 873100979Srwatson *mpc->mpc_field_off = slot; 874100979Srwatson } 875100979Srwatson mpc->mpc_runtime_flags |= MPC_RUNTIME_FLAG_REGISTERED; 876100979Srwatson LIST_INSERT_HEAD(&mac_policy_list, mpc, mpc_list); 877100979Srwatson 878100979Srwatson /* Per-policy initialization. */ 879100979Srwatson if (mpc->mpc_ops->mpo_init != NULL) 880100979Srwatson (*(mpc->mpc_ops->mpo_init))(mpc); 881100979Srwatson MAC_POLICY_LIST_UNLOCK(); 882100979Srwatson 883100979Srwatson printf("Security policy loaded: %s (%s)\n", mpc->mpc_fullname, 884100979Srwatson mpc->mpc_name); 885100979Srwatson 886100979Srwatson return (0); 887100979Srwatson} 888100979Srwatson 889100979Srwatsonstatic int 890100979Srwatsonmac_policy_unregister(struct mac_policy_conf *mpc) 891100979Srwatson{ 892100979Srwatson 893100979Srwatson#if 0 894100979Srwatson /* 895100979Srwatson * Don't allow unloading modules with private data. 896100979Srwatson */ 897100979Srwatson if (mpc->mpc_field_off != NULL) 898100979Srwatson return (EBUSY); 899100979Srwatson#endif 900100979Srwatson if ((mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_UNLOADOK) == 0) 901100979Srwatson return (EBUSY); 902100979Srwatson MAC_POLICY_LIST_LOCK(); 903100979Srwatson if (mac_policy_list_busy > 0) { 904100979Srwatson MAC_POLICY_LIST_UNLOCK(); 905100979Srwatson return (EBUSY); 906100979Srwatson } 907100979Srwatson if (mpc->mpc_ops->mpo_destroy != NULL) 908100979Srwatson (*(mpc->mpc_ops->mpo_destroy))(mpc); 909100979Srwatson 910100979Srwatson LIST_REMOVE(mpc, mpc_list); 911100979Srwatson MAC_POLICY_LIST_UNLOCK(); 912100979Srwatson 913100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 914100979Srwatson mpc->mpc_ops = NULL; 915100979Srwatson 916100979Srwatson printf("Security policy unload: %s (%s)\n", mpc->mpc_fullname, 917100979Srwatson mpc->mpc_name); 918100979Srwatson 919100979Srwatson return (0); 920100979Srwatson} 921100979Srwatson 922100979Srwatson/* 923100979Srwatson * Define an error value precedence, and given two arguments, selects the 924100979Srwatson * value with the higher precedence. 925100979Srwatson */ 926100979Srwatsonstatic int 927100979Srwatsonerror_select(int error1, int error2) 928100979Srwatson{ 929100979Srwatson 930100979Srwatson /* Certain decision-making errors take top priority. */ 931100979Srwatson if (error1 == EDEADLK || error2 == EDEADLK) 932100979Srwatson return (EDEADLK); 933100979Srwatson 934100979Srwatson /* Invalid arguments should be reported where possible. */ 935100979Srwatson if (error1 == EINVAL || error2 == EINVAL) 936100979Srwatson return (EINVAL); 937100979Srwatson 938100979Srwatson /* Precedence goes to "visibility", with both process and file. */ 939100979Srwatson if (error1 == ESRCH || error2 == ESRCH) 940100979Srwatson return (ESRCH); 941100979Srwatson 942100979Srwatson if (error1 == ENOENT || error2 == ENOENT) 943100979Srwatson return (ENOENT); 944100979Srwatson 945100979Srwatson /* Precedence goes to DAC/MAC protections. */ 946100979Srwatson if (error1 == EACCES || error2 == EACCES) 947100979Srwatson return (EACCES); 948100979Srwatson 949100979Srwatson /* Precedence goes to privilege. */ 950100979Srwatson if (error1 == EPERM || error2 == EPERM) 951100979Srwatson return (EPERM); 952100979Srwatson 953100979Srwatson /* Precedence goes to error over success; otherwise, arbitrary. */ 954100979Srwatson if (error1 != 0) 955100979Srwatson return (error1); 956100979Srwatson return (error2); 957100979Srwatson} 958100979Srwatson 959100979Srwatsonvoid 960100979Srwatsonmac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp) 961100979Srwatson{ 962100979Srwatson 963100979Srwatson MAC_PERFORM(update_devfsdirent, de, &de->de_label, vp, &vp->v_label); 964100979Srwatson} 965100979Srwatson 966100979Srwatsonvoid 967100979Srwatsonmac_update_procfsvnode(struct vnode *vp, struct ucred *cred) 968100979Srwatson{ 969100979Srwatson 970100979Srwatson MAC_PERFORM(update_procfsvnode, vp, &vp->v_label, cred); 971100979Srwatson} 972100979Srwatson 973100979Srwatson/* 974100979Srwatson * Support callout for policies that manage their own externalization 975100979Srwatson * using extended attributes. 976100979Srwatson */ 977100979Srwatsonstatic int 978100979Srwatsonmac_update_vnode_from_extattr(struct vnode *vp, struct mount *mp) 979100979Srwatson{ 980100979Srwatson int error; 981100979Srwatson 982100979Srwatson MAC_CHECK(update_vnode_from_extattr, vp, &vp->v_label, mp, 983100979Srwatson &mp->mnt_fslabel); 984100979Srwatson 985100979Srwatson return (error); 986100979Srwatson} 987100979Srwatson 988100979Srwatson/* 989100979Srwatson * Given an externalized mac label, internalize it and stamp it on a 990100979Srwatson * vnode. 991100979Srwatson */ 992100979Srwatsonstatic int 993100979Srwatsonmac_update_vnode_from_externalized(struct vnode *vp, struct mac *extmac) 994100979Srwatson{ 995100979Srwatson int error; 996100979Srwatson 997100979Srwatson MAC_CHECK(update_vnode_from_externalized, vp, &vp->v_label, extmac); 998100979Srwatson 999100979Srwatson return (error); 1000100979Srwatson} 1001100979Srwatson 1002100979Srwatson/* 1003100979Srwatson * Call out to individual policies to update the label in a vnode from 1004100979Srwatson * the mountpoint. 1005100979Srwatson */ 1006100979Srwatsonvoid 1007100979Srwatsonmac_update_vnode_from_mount(struct vnode *vp, struct mount *mp) 1008100979Srwatson{ 1009100979Srwatson 1010100979Srwatson MAC_PERFORM(update_vnode_from_mount, vp, &vp->v_label, mp, 1011100979Srwatson &mp->mnt_fslabel); 1012100979Srwatson 1013101308Sjeff ASSERT_VOP_LOCKED(vp, "mac_update_vnode_from_mount"); 1014100979Srwatson if (mac_cache_fslabel_in_vnode) 1015101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1016100979Srwatson} 1017100979Srwatson 1018100979Srwatson/* 1019100979Srwatson * Implementation of VOP_REFRESHLABEL() that relies on extended attributes 1020100979Srwatson * to store label data. Can be referenced by filesystems supporting 1021100979Srwatson * extended attributes. 1022100979Srwatson */ 1023100979Srwatsonint 1024100979Srwatsonvop_stdrefreshlabel_ea(struct vop_refreshlabel_args *ap) 1025100979Srwatson{ 1026100979Srwatson struct vnode *vp = ap->a_vp; 1027100979Srwatson struct mac extmac; 1028100979Srwatson int buflen, error; 1029100979Srwatson 1030100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdrefreshlabel_ea"); 1031100979Srwatson 1032100979Srwatson /* 1033100979Srwatson * Call out to external policies first. Order doesn't really 1034100979Srwatson * matter, as long as failure of one assures failure of all. 1035100979Srwatson */ 1036100979Srwatson error = mac_update_vnode_from_extattr(vp, vp->v_mount); 1037100979Srwatson if (error) 1038100979Srwatson return (error); 1039100979Srwatson 1040100979Srwatson buflen = sizeof(extmac); 1041100979Srwatson error = vn_extattr_get(vp, IO_NODELOCKED, 1042100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, &buflen, 1043100979Srwatson (char *)&extmac, curthread); 1044100979Srwatson switch (error) { 1045100979Srwatson case 0: 1046100979Srwatson /* Got it */ 1047100979Srwatson break; 1048100979Srwatson 1049100979Srwatson case ENOATTR: 1050100979Srwatson /* 1051100979Srwatson * Use the label from the mount point. 1052100979Srwatson */ 1053100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1054100979Srwatson return (0); 1055100979Srwatson 1056100979Srwatson case EOPNOTSUPP: 1057100979Srwatson default: 1058100979Srwatson /* Fail horribly. */ 1059100979Srwatson return (error); 1060100979Srwatson } 1061100979Srwatson 1062100979Srwatson if (buflen != sizeof(extmac)) 1063100979Srwatson error = EPERM; /* Fail very closed. */ 1064100979Srwatson if (error == 0) 1065100979Srwatson error = mac_update_vnode_from_externalized(vp, &extmac); 1066100979Srwatson if (error == 0) 1067101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1068100979Srwatson else { 1069100979Srwatson struct vattr va; 1070100979Srwatson 1071100979Srwatson printf("Corrupted label on %s", 1072100979Srwatson vp->v_mount->mnt_stat.f_mntonname); 1073100979Srwatson if (VOP_GETATTR(vp, &va, curthread->td_ucred, curthread) == 0) 1074100979Srwatson printf(" inum %ld", va.va_fileid); 1075100979Srwatson if (mac_debug_label_fallback) { 1076100979Srwatson printf(", falling back.\n"); 1077100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1078100979Srwatson error = 0; 1079100979Srwatson } else { 1080100979Srwatson printf(".\n"); 1081100979Srwatson error = EPERM; 1082100979Srwatson } 1083100979Srwatson } 1084100979Srwatson 1085100979Srwatson return (error); 1086100979Srwatson} 1087100979Srwatson 1088100979Srwatson/* 1089100979Srwatson * Make sure the vnode label is up-to-date. If EOPNOTSUPP, then we handle 1090100979Srwatson * the labeling activity outselves. Filesystems should be careful not 1091100979Srwatson * to change their minds regarding whether they support vop_refreshlabel() 1092100979Srwatson * for a vnode or not. Don't cache the vnode here, allow the file 1093100979Srwatson * system code to determine if it's safe to cache. If we update from 1094100979Srwatson * the mount, don't cache since a change to the mount label should affect 1095100979Srwatson * all vnodes. 1096100979Srwatson */ 1097100979Srwatsonstatic int 1098100979Srwatsonvn_refreshlabel(struct vnode *vp, struct ucred *cred) 1099100979Srwatson{ 1100100979Srwatson int error; 1101100979Srwatson 1102100979Srwatson ASSERT_VOP_LOCKED(vp, "vn_refreshlabel"); 1103100979Srwatson 1104100979Srwatson if (vp->v_mount == NULL) { 1105100979Srwatson/* 1106100979Srwatson Eventually, we probably want to special-case refreshing 1107100979Srwatson of deadfs vnodes, and if there's a lock-free race somewhere, 1108100979Srwatson that case might be handled here. 1109100979Srwatson 1110100979Srwatson mac_update_vnode_deadfs(vp); 1111100979Srwatson return (0); 1112100979Srwatson */ 1113100979Srwatson /* printf("vn_refreshlabel: null v_mount\n"); */ 1114100979Srwatson if (vp->v_tag != VT_NON) 1115100979Srwatson printf( 1116100979Srwatson "vn_refreshlabel: null v_mount with non-VT_NON\n"); 1117100979Srwatson return (EBADF); 1118100979Srwatson } 1119100979Srwatson 1120101308Sjeff if (vp->v_vflag & VV_CACHEDLABEL) { 1121100979Srwatson mac_vnode_label_cache_hits++; 1122100979Srwatson return (0); 1123100979Srwatson } else 1124100979Srwatson mac_vnode_label_cache_misses++; 1125100979Srwatson 1126100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1127100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1128100979Srwatson return (0); 1129100979Srwatson } 1130100979Srwatson 1131100979Srwatson error = VOP_REFRESHLABEL(vp, cred, curthread); 1132100979Srwatson switch (error) { 1133100979Srwatson case EOPNOTSUPP: 1134100979Srwatson /* 1135100979Srwatson * If labels are not supported on this vnode, fall back to 1136100979Srwatson * the label in the mount and propagate it to the vnode. 1137100979Srwatson * There should probably be some sort of policy/flag/decision 1138100979Srwatson * about doing this. 1139100979Srwatson */ 1140100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1141100979Srwatson error = 0; 1142100979Srwatson default: 1143100979Srwatson return (error); 1144100979Srwatson } 1145100979Srwatson} 1146100979Srwatson 1147100979Srwatson/* 1148100979Srwatson * Helper function for file systems using the vop_std*_ea() calls. This 1149100979Srwatson * function must be called after EA service is available for the vnode, 1150100979Srwatson * but before it's hooked up to the namespace so that the node persists 1151100979Srwatson * if there's a crash, or before it can be accessed. On successful 1152100979Srwatson * commit of the label to disk (etc), do cache the label. 1153100979Srwatson */ 1154100979Srwatsonint 1155100979Srwatsonvop_stdcreatevnode_ea(struct vnode *dvp, struct vnode *tvp, struct ucred *cred) 1156100979Srwatson{ 1157100979Srwatson struct mac extmac; 1158100979Srwatson int error; 1159100979Srwatson 1160101308Sjeff ASSERT_VOP_LOCKED(tvp, "vop_stdcreatevnode_ea"); 1161100979Srwatson if ((dvp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1162100979Srwatson mac_update_vnode_from_mount(tvp, tvp->v_mount); 1163100979Srwatson } else { 1164100979Srwatson error = vn_refreshlabel(dvp, cred); 1165100979Srwatson if (error) 1166100979Srwatson return (error); 1167100979Srwatson 1168100979Srwatson /* 1169100979Srwatson * Stick the label in the vnode. Then try to write to 1170100979Srwatson * disk. If we fail, return a failure to abort the 1171100979Srwatson * create operation. Really, this failure shouldn't 1172100979Srwatson * happen except in fairly unusual circumstances (out 1173100979Srwatson * of disk, etc). 1174100979Srwatson */ 1175100979Srwatson mac_create_vnode(cred, dvp, tvp); 1176100979Srwatson 1177100979Srwatson error = mac_stdcreatevnode_ea(tvp); 1178100979Srwatson if (error) 1179100979Srwatson return (error); 1180100979Srwatson 1181100979Srwatson /* 1182100979Srwatson * XXX: Eventually this will go away and all policies will 1183100979Srwatson * directly manage their extended attributes. 1184100979Srwatson */ 1185100979Srwatson error = mac_externalize(&tvp->v_label, &extmac); 1186100979Srwatson if (error) 1187100979Srwatson return (error); 1188100979Srwatson 1189100979Srwatson error = vn_extattr_set(tvp, IO_NODELOCKED, 1190100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 1191100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 1192100979Srwatson if (error == 0) 1193101308Sjeff tvp->v_vflag |= VV_CACHEDLABEL; 1194100979Srwatson else { 1195100979Srwatson#if 0 1196100979Srwatson /* 1197100979Srwatson * In theory, we could have fall-back behavior here. 1198100979Srwatson * It would probably be incorrect. 1199100979Srwatson */ 1200100979Srwatson#endif 1201100979Srwatson return (error); 1202100979Srwatson } 1203100979Srwatson } 1204100979Srwatson 1205100979Srwatson return (0); 1206100979Srwatson} 1207100979Srwatson 1208100979Srwatsonvoid 1209100979Srwatsonmac_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp) 1210100979Srwatson{ 1211100979Srwatson int error; 1212100979Srwatson 1213100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_execve_transition"); 1214100979Srwatson 1215100979Srwatson error = vn_refreshlabel(vp, old); 1216100979Srwatson if (error) { 1217100979Srwatson printf("mac_execve_transition: vn_refreshlabel returned %d\n", 1218100979Srwatson error); 1219100979Srwatson printf("mac_execve_transition: using old vnode label\n"); 1220100979Srwatson } 1221100979Srwatson 1222100979Srwatson MAC_PERFORM(execve_transition, old, new, vp, &vp->v_label); 1223100979Srwatson} 1224100979Srwatson 1225100979Srwatsonint 1226100979Srwatsonmac_execve_will_transition(struct ucred *old, struct vnode *vp) 1227100979Srwatson{ 1228100979Srwatson int error, result; 1229100979Srwatson 1230100979Srwatson error = vn_refreshlabel(vp, old); 1231100979Srwatson if (error) 1232100979Srwatson return (error); 1233100979Srwatson 1234100979Srwatson result = 0; 1235100979Srwatson MAC_BOOLEAN(execve_will_transition, ||, old, vp, &vp->v_label); 1236100979Srwatson 1237100979Srwatson return (result); 1238100979Srwatson} 1239100979Srwatson 1240100979Srwatsonstatic void 1241100979Srwatsonmac_init_label(struct label *label) 1242100979Srwatson{ 1243100979Srwatson 1244100979Srwatson bzero(label, sizeof(*label)); 1245100979Srwatson label->l_flags = MAC_FLAG_INITIALIZED; 1246100979Srwatson} 1247100979Srwatson 1248100979Srwatsonstatic void 1249100979Srwatsonmac_init_structmac(struct mac *mac) 1250100979Srwatson{ 1251100979Srwatson 1252100979Srwatson bzero(mac, sizeof(*mac)); 1253100979Srwatson mac->m_macflags = MAC_FLAG_INITIALIZED; 1254100979Srwatson} 1255100979Srwatson 1256100979Srwatsonstatic void 1257100979Srwatsonmac_destroy_label(struct label *label) 1258100979Srwatson{ 1259100979Srwatson 1260100979Srwatson KASSERT(label->l_flags & MAC_FLAG_INITIALIZED, 1261100979Srwatson ("destroying uninitialized label")); 1262100979Srwatson 1263100979Srwatson bzero(label, sizeof(*label)); 1264100979Srwatson /* implicit: label->l_flags &= ~MAC_FLAG_INITIALIZED; */ 1265100979Srwatson} 1266100979Srwatson 1267100979Srwatsonint 1268100979Srwatsonmac_init_mbuf(struct mbuf *m, int how) 1269100979Srwatson{ 1270100979Srwatson KASSERT(m->m_flags & M_PKTHDR, ("mac_init_mbuf on non-header mbuf")); 1271100979Srwatson 1272100979Srwatson /* "how" is one of M_(TRY|DONT)WAIT */ 1273100979Srwatson mac_init_label(&m->m_pkthdr.label); 1274100979Srwatson MAC_PERFORM(init_mbuf, m, how, &m->m_pkthdr.label); 1275101988Srwatson#ifdef MAC_DEBUG 1276100979Srwatson atomic_add_int(&nmacmbufs, 1); 1277101988Srwatson#endif 1278100979Srwatson return (0); 1279100979Srwatson} 1280100979Srwatson 1281100979Srwatsonvoid 1282100979Srwatsonmac_destroy_mbuf(struct mbuf *m) 1283100979Srwatson{ 1284100979Srwatson 1285100979Srwatson MAC_PERFORM(destroy_mbuf, m, &m->m_pkthdr.label); 1286100979Srwatson mac_destroy_label(&m->m_pkthdr.label); 1287101988Srwatson#ifdef MAC_DEBUG 1288100979Srwatson atomic_subtract_int(&nmacmbufs, 1); 1289101988Srwatson#endif 1290100979Srwatson} 1291100979Srwatson 1292100979Srwatsonvoid 1293100979Srwatsonmac_init_cred(struct ucred *cr) 1294100979Srwatson{ 1295100979Srwatson 1296100979Srwatson mac_init_label(&cr->cr_label); 1297100979Srwatson MAC_PERFORM(init_cred, cr, &cr->cr_label); 1298101988Srwatson#ifdef MAC_DEBUG 1299100979Srwatson atomic_add_int(&nmaccreds, 1); 1300101988Srwatson#endif 1301100979Srwatson} 1302100979Srwatson 1303100979Srwatsonvoid 1304100979Srwatsonmac_destroy_cred(struct ucred *cr) 1305100979Srwatson{ 1306100979Srwatson 1307100979Srwatson MAC_PERFORM(destroy_cred, cr, &cr->cr_label); 1308100979Srwatson mac_destroy_label(&cr->cr_label); 1309101988Srwatson#ifdef MAC_DEBUG 1310100979Srwatson atomic_subtract_int(&nmaccreds, 1); 1311101988Srwatson#endif 1312100979Srwatson} 1313100979Srwatson 1314100979Srwatsonvoid 1315100979Srwatsonmac_init_ifnet(struct ifnet *ifp) 1316100979Srwatson{ 1317100979Srwatson 1318100979Srwatson mac_init_label(&ifp->if_label); 1319100979Srwatson MAC_PERFORM(init_ifnet, ifp, &ifp->if_label); 1320101988Srwatson#ifdef MAC_DEBUG 1321100979Srwatson atomic_add_int(&nmacifnets, 1); 1322101988Srwatson#endif 1323100979Srwatson} 1324100979Srwatson 1325100979Srwatsonvoid 1326100979Srwatsonmac_destroy_ifnet(struct ifnet *ifp) 1327100979Srwatson{ 1328100979Srwatson 1329100979Srwatson MAC_PERFORM(destroy_ifnet, ifp, &ifp->if_label); 1330100979Srwatson mac_destroy_label(&ifp->if_label); 1331101988Srwatson#ifdef MAC_DEBUG 1332100979Srwatson atomic_subtract_int(&nmacifnets, 1); 1333101988Srwatson#endif 1334100979Srwatson} 1335100979Srwatson 1336100979Srwatsonvoid 1337100979Srwatsonmac_init_ipq(struct ipq *ipq) 1338100979Srwatson{ 1339100979Srwatson 1340100979Srwatson mac_init_label(&ipq->ipq_label); 1341100979Srwatson MAC_PERFORM(init_ipq, ipq, &ipq->ipq_label); 1342101988Srwatson#ifdef MAC_DEBUG 1343100979Srwatson atomic_add_int(&nmacipqs, 1); 1344101988Srwatson#endif 1345100979Srwatson} 1346100979Srwatson 1347100979Srwatsonvoid 1348100979Srwatsonmac_destroy_ipq(struct ipq *ipq) 1349100979Srwatson{ 1350100979Srwatson 1351100979Srwatson MAC_PERFORM(destroy_ipq, ipq, &ipq->ipq_label); 1352100979Srwatson mac_destroy_label(&ipq->ipq_label); 1353101988Srwatson#ifdef MAC_DEBUG 1354100979Srwatson atomic_subtract_int(&nmacipqs, 1); 1355101988Srwatson#endif 1356100979Srwatson} 1357100979Srwatson 1358100979Srwatsonvoid 1359100979Srwatsonmac_init_socket(struct socket *socket) 1360100979Srwatson{ 1361100979Srwatson 1362100979Srwatson mac_init_label(&socket->so_label); 1363100979Srwatson mac_init_label(&socket->so_peerlabel); 1364100979Srwatson MAC_PERFORM(init_socket, socket, &socket->so_label, 1365100979Srwatson &socket->so_peerlabel); 1366101988Srwatson#ifdef MAC_DEBUG 1367100979Srwatson atomic_add_int(&nmacsockets, 1); 1368101988Srwatson#endif 1369100979Srwatson} 1370100979Srwatson 1371100979Srwatsonvoid 1372100979Srwatsonmac_destroy_socket(struct socket *socket) 1373100979Srwatson{ 1374100979Srwatson 1375100979Srwatson MAC_PERFORM(destroy_socket, socket, &socket->so_label, 1376100979Srwatson &socket->so_peerlabel); 1377100979Srwatson mac_destroy_label(&socket->so_label); 1378100979Srwatson mac_destroy_label(&socket->so_peerlabel); 1379101988Srwatson#ifdef MAC_DEBUG 1380100979Srwatson atomic_subtract_int(&nmacsockets, 1); 1381101988Srwatson#endif 1382100979Srwatson} 1383100979Srwatson 1384100979Srwatsonvoid 1385100979Srwatsonmac_init_pipe(struct pipe *pipe) 1386100979Srwatson{ 1387100979Srwatson struct label *label; 1388100979Srwatson 1389100979Srwatson label = malloc(sizeof(struct label), M_MACPIPELABEL, M_ZERO|M_WAITOK); 1390100979Srwatson mac_init_label(label); 1391100979Srwatson pipe->pipe_label = label; 1392100979Srwatson pipe->pipe_peer->pipe_label = label; 1393100979Srwatson MAC_PERFORM(init_pipe, pipe, pipe->pipe_label); 1394101988Srwatson#ifdef MAC_DEBUG 1395100979Srwatson atomic_add_int(&nmacpipes, 1); 1396101988Srwatson#endif 1397100979Srwatson} 1398100979Srwatson 1399100979Srwatsonvoid 1400100979Srwatsonmac_destroy_pipe(struct pipe *pipe) 1401100979Srwatson{ 1402100979Srwatson 1403100979Srwatson MAC_PERFORM(destroy_pipe, pipe, pipe->pipe_label); 1404100979Srwatson mac_destroy_label(pipe->pipe_label); 1405100979Srwatson free(pipe->pipe_label, M_MACPIPELABEL); 1406101988Srwatson#ifdef MAC_DEBUG 1407100979Srwatson atomic_subtract_int(&nmacpipes, 1); 1408101988Srwatson#endif 1409100979Srwatson} 1410100979Srwatson 1411100979Srwatsonvoid 1412100979Srwatsonmac_init_bpfdesc(struct bpf_d *bpf_d) 1413100979Srwatson{ 1414100979Srwatson 1415100979Srwatson mac_init_label(&bpf_d->bd_label); 1416100979Srwatson MAC_PERFORM(init_bpfdesc, bpf_d, &bpf_d->bd_label); 1417101988Srwatson#ifdef MAC_DEBUG 1418100979Srwatson atomic_add_int(&nmacbpfdescs, 1); 1419101988Srwatson#endif 1420100979Srwatson} 1421100979Srwatson 1422100979Srwatsonvoid 1423100979Srwatsonmac_destroy_bpfdesc(struct bpf_d *bpf_d) 1424100979Srwatson{ 1425100979Srwatson 1426100979Srwatson MAC_PERFORM(destroy_bpfdesc, bpf_d, &bpf_d->bd_label); 1427100979Srwatson mac_destroy_label(&bpf_d->bd_label); 1428101988Srwatson#ifdef MAC_DEBUG 1429100979Srwatson atomic_subtract_int(&nmacbpfdescs, 1); 1430101988Srwatson#endif 1431100979Srwatson} 1432100979Srwatson 1433100979Srwatsonvoid 1434100979Srwatsonmac_init_mount(struct mount *mp) 1435100979Srwatson{ 1436100979Srwatson 1437100979Srwatson mac_init_label(&mp->mnt_mntlabel); 1438100979Srwatson mac_init_label(&mp->mnt_fslabel); 1439100979Srwatson MAC_PERFORM(init_mount, mp, &mp->mnt_mntlabel, &mp->mnt_fslabel); 1440101988Srwatson#ifdef MAC_DEBUG 1441100979Srwatson atomic_add_int(&nmacmounts, 1); 1442101988Srwatson#endif 1443100979Srwatson} 1444100979Srwatson 1445100979Srwatsonvoid 1446100979Srwatsonmac_destroy_mount(struct mount *mp) 1447100979Srwatson{ 1448100979Srwatson 1449100979Srwatson MAC_PERFORM(destroy_mount, mp, &mp->mnt_mntlabel, &mp->mnt_fslabel); 1450100979Srwatson mac_destroy_label(&mp->mnt_fslabel); 1451100979Srwatson mac_destroy_label(&mp->mnt_mntlabel); 1452101988Srwatson#ifdef MAC_DEBUG 1453100979Srwatson atomic_subtract_int(&nmacmounts, 1); 1454101988Srwatson#endif 1455100979Srwatson} 1456100979Srwatson 1457100979Srwatsonstatic void 1458100979Srwatsonmac_init_temp(struct label *label) 1459100979Srwatson{ 1460100979Srwatson 1461100979Srwatson mac_init_label(label); 1462100979Srwatson MAC_PERFORM(init_temp, label); 1463101988Srwatson#ifdef MAC_DEBUG 1464100979Srwatson atomic_add_int(&nmactemp, 1); 1465101988Srwatson#endif 1466100979Srwatson} 1467100979Srwatson 1468100979Srwatsonstatic void 1469100979Srwatsonmac_destroy_temp(struct label *label) 1470100979Srwatson{ 1471100979Srwatson 1472100979Srwatson MAC_PERFORM(destroy_temp, label); 1473100979Srwatson mac_destroy_label(label); 1474101988Srwatson#ifdef MAC_DEBUG 1475100979Srwatson atomic_subtract_int(&nmactemp, 1); 1476101988Srwatson#endif 1477100979Srwatson} 1478100979Srwatson 1479100979Srwatsonvoid 1480100979Srwatsonmac_init_vnode(struct vnode *vp) 1481100979Srwatson{ 1482100979Srwatson 1483100979Srwatson mac_init_label(&vp->v_label); 1484100979Srwatson MAC_PERFORM(init_vnode, vp, &vp->v_label); 1485101988Srwatson#ifdef MAC_DEBUG 1486100979Srwatson atomic_add_int(&nmacvnodes, 1); 1487101988Srwatson#endif 1488100979Srwatson} 1489100979Srwatson 1490100979Srwatsonvoid 1491100979Srwatsonmac_destroy_vnode(struct vnode *vp) 1492100979Srwatson{ 1493100979Srwatson 1494100979Srwatson MAC_PERFORM(destroy_vnode, vp, &vp->v_label); 1495100979Srwatson mac_destroy_label(&vp->v_label); 1496101988Srwatson#ifdef MAC_DEBUG 1497100979Srwatson atomic_subtract_int(&nmacvnodes, 1); 1498101988Srwatson#endif 1499100979Srwatson} 1500100979Srwatson 1501100979Srwatsonvoid 1502100979Srwatsonmac_init_devfsdirent(struct devfs_dirent *de) 1503100979Srwatson{ 1504100979Srwatson 1505100979Srwatson mac_init_label(&de->de_label); 1506100979Srwatson MAC_PERFORM(init_devfsdirent, de, &de->de_label); 1507101988Srwatson#ifdef MAC_DEBUG 1508100979Srwatson atomic_add_int(&nmacdevfsdirents, 1); 1509101988Srwatson#endif 1510100979Srwatson} 1511100979Srwatson 1512100979Srwatsonvoid 1513100979Srwatsonmac_destroy_devfsdirent(struct devfs_dirent *de) 1514100979Srwatson{ 1515100979Srwatson 1516100979Srwatson MAC_PERFORM(destroy_devfsdirent, de, &de->de_label); 1517100979Srwatson mac_destroy_label(&de->de_label); 1518101988Srwatson#ifdef MAC_DEBUG 1519100979Srwatson atomic_subtract_int(&nmacdevfsdirents, 1); 1520101988Srwatson#endif 1521100979Srwatson} 1522100979Srwatson 1523100979Srwatsonstatic int 1524100979Srwatsonmac_externalize(struct label *label, struct mac *mac) 1525100979Srwatson{ 1526100979Srwatson int error; 1527100979Srwatson 1528100979Srwatson mac_init_structmac(mac); 1529100979Srwatson MAC_CHECK(externalize, label, mac); 1530100979Srwatson 1531100979Srwatson return (error); 1532100979Srwatson} 1533100979Srwatson 1534100979Srwatsonstatic int 1535100979Srwatsonmac_internalize(struct label *label, struct mac *mac) 1536100979Srwatson{ 1537100979Srwatson int error; 1538100979Srwatson 1539100979Srwatson mac_init_temp(label); 1540100979Srwatson MAC_CHECK(internalize, label, mac); 1541100979Srwatson if (error) 1542100979Srwatson mac_destroy_temp(label); 1543100979Srwatson 1544100979Srwatson return (error); 1545100979Srwatson} 1546100979Srwatson 1547100979Srwatson/* 1548100979Srwatson * Initialize MAC label for the first kernel process, from which other 1549100979Srwatson * kernel processes and threads are spawned. 1550100979Srwatson */ 1551100979Srwatsonvoid 1552100979Srwatsonmac_create_proc0(struct ucred *cred) 1553100979Srwatson{ 1554100979Srwatson 1555100979Srwatson MAC_PERFORM(create_proc0, cred); 1556100979Srwatson} 1557100979Srwatson 1558100979Srwatson/* 1559100979Srwatson * Initialize MAC label for the first userland process, from which other 1560100979Srwatson * userland processes and threads are spawned. 1561100979Srwatson */ 1562100979Srwatsonvoid 1563100979Srwatsonmac_create_proc1(struct ucred *cred) 1564100979Srwatson{ 1565100979Srwatson 1566100979Srwatson MAC_PERFORM(create_proc1, cred); 1567100979Srwatson} 1568100979Srwatson 1569100979Srwatson/* 1570100979Srwatson * When a new process is created, its label must be initialized. Generally, 1571100979Srwatson * this involves inheritence from the parent process, modulo possible 1572100979Srwatson * deltas. This function allows that processing to take place. 1573100979Srwatson */ 1574100979Srwatsonvoid 1575100979Srwatsonmac_create_cred(struct ucred *parent_cred, struct ucred *child_cred) 1576100979Srwatson{ 1577100979Srwatson 1578100979Srwatson MAC_PERFORM(create_cred, parent_cred, child_cred); 1579100979Srwatson} 1580100979Srwatson 1581100979Srwatsonint 1582100979Srwatsonmac_check_vnode_access(struct ucred *cred, struct vnode *vp, int flags) 1583100979Srwatson{ 1584100979Srwatson int error; 1585100979Srwatson 1586100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_access"); 1587100979Srwatson 1588100979Srwatson if (!mac_enforce_fs) 1589100979Srwatson return (0); 1590100979Srwatson 1591100979Srwatson error = vn_refreshlabel(vp, cred); 1592100979Srwatson if (error) 1593100979Srwatson return (error); 1594100979Srwatson 1595100979Srwatson MAC_CHECK(check_vnode_access, cred, vp, &vp->v_label, flags); 1596100979Srwatson return (error); 1597100979Srwatson} 1598100979Srwatson 1599100979Srwatsonint 1600100979Srwatsonmac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp) 1601100979Srwatson{ 1602100979Srwatson int error; 1603100979Srwatson 1604100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chdir"); 1605100979Srwatson 1606100979Srwatson if (!mac_enforce_fs) 1607100979Srwatson return (0); 1608100979Srwatson 1609100979Srwatson error = vn_refreshlabel(dvp, cred); 1610100979Srwatson if (error) 1611100979Srwatson return (error); 1612100979Srwatson 1613100979Srwatson MAC_CHECK(check_vnode_chdir, cred, dvp, &dvp->v_label); 1614100979Srwatson return (error); 1615100979Srwatson} 1616100979Srwatson 1617100979Srwatsonint 1618100979Srwatsonmac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp) 1619100979Srwatson{ 1620100979Srwatson int error; 1621100979Srwatson 1622100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chroot"); 1623100979Srwatson 1624100979Srwatson if (!mac_enforce_fs) 1625100979Srwatson return (0); 1626100979Srwatson 1627100979Srwatson error = vn_refreshlabel(dvp, cred); 1628100979Srwatson if (error) 1629100979Srwatson return (error); 1630100979Srwatson 1631100979Srwatson MAC_CHECK(check_vnode_chroot, cred, dvp, &dvp->v_label); 1632100979Srwatson return (error); 1633100979Srwatson} 1634100979Srwatson 1635100979Srwatsonint 1636100979Srwatsonmac_check_vnode_create(struct ucred *cred, struct vnode *dvp, 1637100979Srwatson struct componentname *cnp, struct vattr *vap) 1638100979Srwatson{ 1639100979Srwatson int error; 1640100979Srwatson 1641100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_create"); 1642100979Srwatson 1643100979Srwatson if (!mac_enforce_fs) 1644100979Srwatson return (0); 1645100979Srwatson 1646100979Srwatson error = vn_refreshlabel(dvp, cred); 1647100979Srwatson if (error) 1648100979Srwatson return (error); 1649100979Srwatson 1650100979Srwatson MAC_CHECK(check_vnode_create, cred, dvp, &dvp->v_label, cnp, vap); 1651100979Srwatson return (error); 1652100979Srwatson} 1653100979Srwatson 1654100979Srwatsonint 1655100979Srwatsonmac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, struct vnode *vp, 1656100979Srwatson struct componentname *cnp) 1657100979Srwatson{ 1658100979Srwatson int error; 1659100979Srwatson 1660100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_delete"); 1661100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_delete"); 1662100979Srwatson 1663100979Srwatson if (!mac_enforce_fs) 1664100979Srwatson return (0); 1665100979Srwatson 1666100979Srwatson error = vn_refreshlabel(dvp, cred); 1667100979Srwatson if (error) 1668100979Srwatson return (error); 1669100979Srwatson error = vn_refreshlabel(vp, cred); 1670100979Srwatson if (error) 1671100979Srwatson return (error); 1672100979Srwatson 1673100979Srwatson MAC_CHECK(check_vnode_delete, cred, dvp, &dvp->v_label, vp, 1674100979Srwatson &vp->v_label, cnp); 1675100979Srwatson return (error); 1676100979Srwatson} 1677100979Srwatson 1678100979Srwatsonint 1679100979Srwatsonmac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 1680100979Srwatson acl_type_t type) 1681100979Srwatson{ 1682100979Srwatson int error; 1683100979Srwatson 1684100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_deleteacl"); 1685100979Srwatson 1686100979Srwatson if (!mac_enforce_fs) 1687100979Srwatson return (0); 1688100979Srwatson 1689100979Srwatson error = vn_refreshlabel(vp, cred); 1690100979Srwatson if (error) 1691100979Srwatson return (error); 1692100979Srwatson 1693100979Srwatson MAC_CHECK(check_vnode_deleteacl, cred, vp, &vp->v_label, type); 1694100979Srwatson return (error); 1695100979Srwatson} 1696100979Srwatson 1697100979Srwatsonint 1698100979Srwatsonmac_check_vnode_exec(struct ucred *cred, struct vnode *vp) 1699100979Srwatson{ 1700100979Srwatson int error; 1701100979Srwatson 1702102102Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_exec"); 1703102102Srwatson 1704100979Srwatson if (!mac_enforce_process && !mac_enforce_fs) 1705100979Srwatson return (0); 1706100979Srwatson 1707100979Srwatson error = vn_refreshlabel(vp, cred); 1708100979Srwatson if (error) 1709100979Srwatson return (error); 1710100979Srwatson MAC_CHECK(check_vnode_exec, cred, vp, &vp->v_label); 1711100979Srwatson 1712100979Srwatson return (error); 1713100979Srwatson} 1714100979Srwatson 1715100979Srwatsonint 1716100979Srwatsonmac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, acl_type_t type) 1717100979Srwatson{ 1718100979Srwatson int error; 1719100979Srwatson 1720100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getacl"); 1721100979Srwatson 1722100979Srwatson if (!mac_enforce_fs) 1723100979Srwatson return (0); 1724100979Srwatson 1725100979Srwatson error = vn_refreshlabel(vp, cred); 1726100979Srwatson if (error) 1727100979Srwatson return (error); 1728100979Srwatson 1729100979Srwatson MAC_CHECK(check_vnode_getacl, cred, vp, &vp->v_label, type); 1730100979Srwatson return (error); 1731100979Srwatson} 1732100979Srwatson 1733100979Srwatsonint 1734100979Srwatsonmac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 1735100979Srwatson int attrnamespace, const char *name, struct uio *uio) 1736100979Srwatson{ 1737100979Srwatson int error; 1738100979Srwatson 1739100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getextattr"); 1740100979Srwatson 1741100979Srwatson if (!mac_enforce_fs) 1742100979Srwatson return (0); 1743100979Srwatson 1744100979Srwatson error = vn_refreshlabel(vp, cred); 1745100979Srwatson if (error) 1746100979Srwatson return (error); 1747100979Srwatson 1748100979Srwatson MAC_CHECK(check_vnode_getextattr, cred, vp, &vp->v_label, 1749100979Srwatson attrnamespace, name, uio); 1750100979Srwatson return (error); 1751100979Srwatson} 1752100979Srwatson 1753100979Srwatsonint 1754100979Srwatsonmac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 1755100979Srwatson struct componentname *cnp) 1756100979Srwatson{ 1757100979Srwatson int error; 1758100979Srwatson 1759100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_lookup"); 1760100979Srwatson 1761100979Srwatson if (!mac_enforce_fs) 1762100979Srwatson return (0); 1763100979Srwatson 1764100979Srwatson error = vn_refreshlabel(dvp, cred); 1765100979Srwatson if (error) 1766100979Srwatson return (error); 1767100979Srwatson 1768100979Srwatson MAC_CHECK(check_vnode_lookup, cred, dvp, &dvp->v_label, cnp); 1769100979Srwatson return (error); 1770100979Srwatson} 1771100979Srwatson 1772100979Srwatsonvm_prot_t 1773100979Srwatsonmac_check_vnode_mmap_prot(struct ucred *cred, struct vnode *vp, int newmapping) 1774100979Srwatson{ 1775100979Srwatson vm_prot_t result = VM_PROT_ALL; 1776100979Srwatson 1777100979Srwatson /* 1778100979Srwatson * This should be some sort of MAC_BITWISE, maybe :) 1779100979Srwatson */ 1780100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_mmap_perms"); 1781100979Srwatson MAC_BOOLEAN(check_vnode_mmap_perms, &, cred, vp, &vp->v_label, 1782100979Srwatson newmapping); 1783100979Srwatson return (result); 1784100979Srwatson} 1785100979Srwatson 1786100979Srwatsonint 1787102112Srwatsonmac_check_vnode_open(struct ucred *cred, struct vnode *vp, mode_t acc_mode) 1788100979Srwatson{ 1789100979Srwatson int error; 1790100979Srwatson 1791102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_open"); 1792102112Srwatson 1793100979Srwatson if (!mac_enforce_fs) 1794100979Srwatson return (0); 1795100979Srwatson 1796102112Srwatson error = vn_refreshlabel(vp, cred); 1797102112Srwatson if (error) 1798102112Srwatson return (error); 1799100979Srwatson 1800102112Srwatson MAC_CHECK(check_vnode_open, cred, vp, &vp->v_label, acc_mode); 1801102112Srwatson return (error); 1802102112Srwatson} 1803102112Srwatson 1804102112Srwatsonint 1805102129Srwatsonmac_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 1806102129Srwatson struct vnode *vp) 1807102112Srwatson{ 1808102112Srwatson int error; 1809102112Srwatson 1810102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_poll"); 1811102112Srwatson 1812102112Srwatson if (!mac_enforce_fs) 1813102112Srwatson return (0); 1814102112Srwatson 1815102129Srwatson error = vn_refreshlabel(vp, active_cred); 1816100979Srwatson if (error) 1817100979Srwatson return (error); 1818100979Srwatson 1819102129Srwatson MAC_CHECK(check_vnode_poll, active_cred, file_cred, vp, 1820102129Srwatson &vp->v_label); 1821100979Srwatson 1822100979Srwatson return (error); 1823100979Srwatson} 1824100979Srwatson 1825100979Srwatsonint 1826102129Srwatsonmac_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 1827102129Srwatson struct vnode *vp) 1828100979Srwatson{ 1829100979Srwatson int error; 1830100979Srwatson 1831102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_read"); 1832100979Srwatson 1833100979Srwatson if (!mac_enforce_fs) 1834100979Srwatson return (0); 1835100979Srwatson 1836102129Srwatson error = vn_refreshlabel(vp, active_cred); 1837100979Srwatson if (error) 1838100979Srwatson return (error); 1839100979Srwatson 1840102129Srwatson MAC_CHECK(check_vnode_read, active_cred, file_cred, vp, 1841102129Srwatson &vp->v_label); 1842102112Srwatson 1843100979Srwatson return (error); 1844100979Srwatson} 1845100979Srwatson 1846100979Srwatsonint 1847100979Srwatsonmac_check_vnode_readdir(struct ucred *cred, struct vnode *dvp) 1848100979Srwatson{ 1849100979Srwatson int error; 1850100979Srwatson 1851100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_readdir"); 1852100979Srwatson 1853100979Srwatson if (!mac_enforce_fs) 1854100979Srwatson return (0); 1855100979Srwatson 1856100979Srwatson error = vn_refreshlabel(dvp, cred); 1857100979Srwatson if (error) 1858100979Srwatson return (error); 1859100979Srwatson 1860100979Srwatson MAC_CHECK(check_vnode_readdir, cred, dvp, &dvp->v_label); 1861100979Srwatson return (error); 1862100979Srwatson} 1863100979Srwatson 1864100979Srwatsonint 1865100979Srwatsonmac_check_vnode_readlink(struct ucred *cred, struct vnode *vp) 1866100979Srwatson{ 1867100979Srwatson int error; 1868100979Srwatson 1869100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_readlink"); 1870100979Srwatson 1871100979Srwatson if (!mac_enforce_fs) 1872100979Srwatson return (0); 1873100979Srwatson 1874100979Srwatson error = vn_refreshlabel(vp, cred); 1875100979Srwatson if (error) 1876100979Srwatson return (error); 1877100979Srwatson 1878100979Srwatson MAC_CHECK(check_vnode_readlink, cred, vp, &vp->v_label); 1879100979Srwatson return (error); 1880100979Srwatson} 1881100979Srwatson 1882100979Srwatsonstatic int 1883100979Srwatsonmac_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 1884100979Srwatson struct label *newlabel) 1885100979Srwatson{ 1886100979Srwatson int error; 1887100979Srwatson 1888100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_relabel"); 1889100979Srwatson 1890100979Srwatson error = vn_refreshlabel(vp, cred); 1891100979Srwatson if (error) 1892100979Srwatson return (error); 1893100979Srwatson 1894100979Srwatson MAC_CHECK(check_vnode_relabel, cred, vp, &vp->v_label, newlabel); 1895100979Srwatson 1896100979Srwatson return (error); 1897100979Srwatson} 1898100979Srwatson 1899100979Srwatsonint 1900100979Srwatsonmac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 1901100979Srwatson struct vnode *vp, struct componentname *cnp) 1902100979Srwatson{ 1903100979Srwatson int error; 1904100979Srwatson 1905100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_from"); 1906100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_from"); 1907100979Srwatson 1908100979Srwatson if (!mac_enforce_fs) 1909100979Srwatson return (0); 1910100979Srwatson 1911100979Srwatson error = vn_refreshlabel(dvp, cred); 1912100979Srwatson if (error) 1913100979Srwatson return (error); 1914100979Srwatson error = vn_refreshlabel(vp, cred); 1915100979Srwatson if (error) 1916100979Srwatson return (error); 1917100979Srwatson 1918100979Srwatson MAC_CHECK(check_vnode_rename_from, cred, dvp, &dvp->v_label, vp, 1919100979Srwatson &vp->v_label, cnp); 1920100979Srwatson return (error); 1921100979Srwatson} 1922100979Srwatson 1923100979Srwatsonint 1924100979Srwatsonmac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 1925100979Srwatson struct vnode *vp, int samedir, struct componentname *cnp) 1926100979Srwatson{ 1927100979Srwatson int error; 1928100979Srwatson 1929100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_to"); 1930100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_to"); 1931100979Srwatson 1932100979Srwatson if (!mac_enforce_fs) 1933100979Srwatson return (0); 1934100979Srwatson 1935100979Srwatson error = vn_refreshlabel(dvp, cred); 1936100979Srwatson if (error) 1937100979Srwatson return (error); 1938100979Srwatson if (vp != NULL) { 1939100979Srwatson error = vn_refreshlabel(vp, cred); 1940100979Srwatson if (error) 1941100979Srwatson return (error); 1942100979Srwatson } 1943100979Srwatson MAC_CHECK(check_vnode_rename_to, cred, dvp, &dvp->v_label, vp, 1944100979Srwatson vp != NULL ? &vp->v_label : NULL, samedir, cnp); 1945100979Srwatson return (error); 1946100979Srwatson} 1947100979Srwatson 1948100979Srwatsonint 1949100979Srwatsonmac_check_vnode_revoke(struct ucred *cred, struct vnode *vp) 1950100979Srwatson{ 1951100979Srwatson int error; 1952100979Srwatson 1953100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_revoke"); 1954100979Srwatson 1955100979Srwatson if (!mac_enforce_fs) 1956100979Srwatson return (0); 1957100979Srwatson 1958100979Srwatson error = vn_refreshlabel(vp, cred); 1959100979Srwatson if (error) 1960100979Srwatson return (error); 1961100979Srwatson 1962100979Srwatson MAC_CHECK(check_vnode_revoke, cred, vp, &vp->v_label); 1963100979Srwatson return (error); 1964100979Srwatson} 1965100979Srwatson 1966100979Srwatsonint 1967100979Srwatsonmac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, acl_type_t type, 1968100979Srwatson struct acl *acl) 1969100979Srwatson{ 1970100979Srwatson int error; 1971100979Srwatson 1972100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setacl"); 1973100979Srwatson 1974100979Srwatson if (!mac_enforce_fs) 1975100979Srwatson return (0); 1976100979Srwatson 1977100979Srwatson error = vn_refreshlabel(vp, cred); 1978100979Srwatson if (error) 1979100979Srwatson return (error); 1980100979Srwatson 1981100979Srwatson MAC_CHECK(check_vnode_setacl, cred, vp, &vp->v_label, type, acl); 1982100979Srwatson return (error); 1983100979Srwatson} 1984100979Srwatson 1985100979Srwatsonint 1986100979Srwatsonmac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 1987100979Srwatson int attrnamespace, const char *name, struct uio *uio) 1988100979Srwatson{ 1989100979Srwatson int error; 1990100979Srwatson 1991100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setextattr"); 1992100979Srwatson 1993100979Srwatson if (!mac_enforce_fs) 1994100979Srwatson return (0); 1995100979Srwatson 1996100979Srwatson error = vn_refreshlabel(vp, cred); 1997100979Srwatson if (error) 1998100979Srwatson return (error); 1999100979Srwatson 2000100979Srwatson MAC_CHECK(check_vnode_setextattr, cred, vp, &vp->v_label, 2001100979Srwatson attrnamespace, name, uio); 2002100979Srwatson return (error); 2003100979Srwatson} 2004100979Srwatson 2005100979Srwatsonint 2006100979Srwatsonmac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, u_long flags) 2007100979Srwatson{ 2008100979Srwatson int error; 2009100979Srwatson 2010100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setflags"); 2011100979Srwatson 2012100979Srwatson if (!mac_enforce_fs) 2013100979Srwatson return (0); 2014100979Srwatson 2015100979Srwatson error = vn_refreshlabel(vp, cred); 2016100979Srwatson if (error) 2017100979Srwatson return (error); 2018100979Srwatson 2019100979Srwatson MAC_CHECK(check_vnode_setflags, cred, vp, &vp->v_label, flags); 2020100979Srwatson return (error); 2021100979Srwatson} 2022100979Srwatson 2023100979Srwatsonint 2024100979Srwatsonmac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, mode_t mode) 2025100979Srwatson{ 2026100979Srwatson int error; 2027100979Srwatson 2028100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setmode"); 2029100979Srwatson 2030100979Srwatson if (!mac_enforce_fs) 2031100979Srwatson return (0); 2032100979Srwatson 2033100979Srwatson error = vn_refreshlabel(vp, cred); 2034100979Srwatson if (error) 2035100979Srwatson return (error); 2036100979Srwatson 2037100979Srwatson MAC_CHECK(check_vnode_setmode, cred, vp, &vp->v_label, mode); 2038100979Srwatson return (error); 2039100979Srwatson} 2040100979Srwatson 2041100979Srwatsonint 2042100979Srwatsonmac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, uid_t uid, 2043100979Srwatson gid_t gid) 2044100979Srwatson{ 2045100979Srwatson int error; 2046100979Srwatson 2047100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setowner"); 2048100979Srwatson 2049100979Srwatson if (!mac_enforce_fs) 2050100979Srwatson return (0); 2051100979Srwatson 2052100979Srwatson error = vn_refreshlabel(vp, cred); 2053100979Srwatson if (error) 2054100979Srwatson return (error); 2055100979Srwatson 2056100979Srwatson MAC_CHECK(check_vnode_setowner, cred, vp, &vp->v_label, uid, gid); 2057100979Srwatson return (error); 2058100979Srwatson} 2059100979Srwatson 2060100979Srwatsonint 2061100979Srwatsonmac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 2062100979Srwatson struct timespec atime, struct timespec mtime) 2063100979Srwatson{ 2064100979Srwatson int error; 2065100979Srwatson 2066100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setutimes"); 2067100979Srwatson 2068100979Srwatson if (!mac_enforce_fs) 2069100979Srwatson return (0); 2070100979Srwatson 2071100979Srwatson error = vn_refreshlabel(vp, cred); 2072100979Srwatson if (error) 2073100979Srwatson return (error); 2074100979Srwatson 2075100979Srwatson MAC_CHECK(check_vnode_setutimes, cred, vp, &vp->v_label, atime, 2076100979Srwatson mtime); 2077100979Srwatson return (error); 2078100979Srwatson} 2079100979Srwatson 2080100979Srwatsonint 2081102129Srwatsonmac_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 2082102129Srwatson struct vnode *vp) 2083100979Srwatson{ 2084100979Srwatson int error; 2085100979Srwatson 2086100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_stat"); 2087100979Srwatson 2088100979Srwatson if (!mac_enforce_fs) 2089100979Srwatson return (0); 2090100979Srwatson 2091102129Srwatson error = vn_refreshlabel(vp, active_cred); 2092100979Srwatson if (error) 2093100979Srwatson return (error); 2094100979Srwatson 2095102129Srwatson MAC_CHECK(check_vnode_stat, active_cred, file_cred, vp, 2096102129Srwatson &vp->v_label); 2097100979Srwatson return (error); 2098100979Srwatson} 2099100979Srwatson 2100102112Srwatsonint 2101102129Srwatsonmac_check_vnode_write(struct ucred *active_cred, struct ucred *file_cred, 2102102129Srwatson struct vnode *vp) 2103102112Srwatson{ 2104102112Srwatson int error; 2105102112Srwatson 2106102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_write"); 2107102112Srwatson 2108102112Srwatson if (!mac_enforce_fs) 2109102112Srwatson return (0); 2110102112Srwatson 2111102129Srwatson error = vn_refreshlabel(vp, active_cred); 2112102112Srwatson if (error) 2113102112Srwatson return (error); 2114102112Srwatson 2115102129Srwatson MAC_CHECK(check_vnode_write, active_cred, file_cred, vp, 2116102129Srwatson &vp->v_label); 2117102112Srwatson 2118102112Srwatson return (error); 2119102112Srwatson} 2120102112Srwatson 2121100979Srwatson/* 2122100979Srwatson * When relabeling a process, call out to the policies for the maximum 2123100979Srwatson * permission allowed for each object type we know about in its 2124100979Srwatson * memory space, and revoke access (in the least surprising ways we 2125100979Srwatson * know) when necessary. The process lock is not held here. 2126100979Srwatson */ 2127100979Srwatsonstatic void 2128100979Srwatsonmac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred) 2129100979Srwatson{ 2130100979Srwatson 2131100979Srwatson /* XXX freeze all other threads */ 2132100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2133100979Srwatson &td->td_proc->p_vmspace->vm_map); 2134100979Srwatson /* XXX allow other threads to continue */ 2135100979Srwatson} 2136100979Srwatson 2137100979Srwatsonstatic __inline const char * 2138100979Srwatsonprot2str(vm_prot_t prot) 2139100979Srwatson{ 2140100979Srwatson 2141100979Srwatson switch (prot & VM_PROT_ALL) { 2142100979Srwatson case VM_PROT_READ: 2143100979Srwatson return ("r--"); 2144100979Srwatson case VM_PROT_READ | VM_PROT_WRITE: 2145100979Srwatson return ("rw-"); 2146100979Srwatson case VM_PROT_READ | VM_PROT_EXECUTE: 2147100979Srwatson return ("r-x"); 2148100979Srwatson case VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE: 2149100979Srwatson return ("rwx"); 2150100979Srwatson case VM_PROT_WRITE: 2151100979Srwatson return ("-w-"); 2152100979Srwatson case VM_PROT_EXECUTE: 2153100979Srwatson return ("--x"); 2154100979Srwatson case VM_PROT_WRITE | VM_PROT_EXECUTE: 2155100979Srwatson return ("-wx"); 2156100979Srwatson default: 2157100979Srwatson return ("---"); 2158100979Srwatson } 2159100979Srwatson} 2160100979Srwatson 2161100979Srwatsonstatic void 2162100979Srwatsonmac_cred_mmapped_drop_perms_recurse(struct thread *td, struct ucred *cred, 2163100979Srwatson struct vm_map *map) 2164100979Srwatson{ 2165100979Srwatson struct vm_map_entry *vme; 2166100979Srwatson vm_prot_t result, revokeperms; 2167100979Srwatson vm_object_t object; 2168100979Srwatson vm_ooffset_t offset; 2169100979Srwatson struct vnode *vp; 2170100979Srwatson 2171100979Srwatson vm_map_lock_read(map); 2172100979Srwatson for (vme = map->header.next; vme != &map->header; vme = vme->next) { 2173100979Srwatson if (vme->eflags & MAP_ENTRY_IS_SUB_MAP) { 2174100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2175100979Srwatson vme->object.sub_map); 2176100979Srwatson continue; 2177100979Srwatson } 2178100979Srwatson /* 2179100979Srwatson * Skip over entries that obviously are not shared. 2180100979Srwatson */ 2181100979Srwatson if (vme->eflags & (MAP_ENTRY_COW | MAP_ENTRY_NOSYNC) || 2182100979Srwatson !vme->max_protection) 2183100979Srwatson continue; 2184100979Srwatson /* 2185100979Srwatson * Drill down to the deepest backing object. 2186100979Srwatson */ 2187100979Srwatson offset = vme->offset; 2188100979Srwatson object = vme->object.vm_object; 2189100979Srwatson if (object == NULL) 2190100979Srwatson continue; 2191100979Srwatson while (object->backing_object != NULL) { 2192100979Srwatson object = object->backing_object; 2193100979Srwatson offset += object->backing_object_offset; 2194100979Srwatson } 2195100979Srwatson /* 2196100979Srwatson * At the moment, vm_maps and objects aren't considered 2197100979Srwatson * by the MAC system, so only things with backing by a 2198100979Srwatson * normal object (read: vnodes) are checked. 2199100979Srwatson */ 2200100979Srwatson if (object->type != OBJT_VNODE) 2201100979Srwatson continue; 2202100979Srwatson vp = (struct vnode *)object->handle; 2203100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2204100979Srwatson result = mac_check_vnode_mmap_prot(cred, vp, 0); 2205100979Srwatson VOP_UNLOCK(vp, 0, td); 2206100979Srwatson /* 2207100979Srwatson * Find out what maximum protection we may be allowing 2208100979Srwatson * now but a policy needs to get removed. 2209100979Srwatson */ 2210100979Srwatson revokeperms = vme->max_protection & ~result; 2211100979Srwatson if (!revokeperms) 2212100979Srwatson continue; 2213102949Sbde printf("pid %ld: revoking %s perms from %#lx:%ld " 2214102949Sbde "(max %s/cur %s)\n", (long)td->td_proc->p_pid, 2215102949Sbde prot2str(revokeperms), (u_long)vme->start, 2216102949Sbde (long)(vme->end - vme->start), 2217100979Srwatson prot2str(vme->max_protection), prot2str(vme->protection)); 2218100979Srwatson vm_map_lock_upgrade(map); 2219100979Srwatson /* 2220100979Srwatson * This is the really simple case: if a map has more 2221100979Srwatson * max_protection than is allowed, but it's not being 2222100979Srwatson * actually used (that is, the current protection is 2223100979Srwatson * still allowed), we can just wipe it out and do 2224100979Srwatson * nothing more. 2225100979Srwatson */ 2226100979Srwatson if ((vme->protection & revokeperms) == 0) { 2227100979Srwatson vme->max_protection -= revokeperms; 2228100979Srwatson } else { 2229100979Srwatson if (revokeperms & VM_PROT_WRITE) { 2230100979Srwatson /* 2231100979Srwatson * In the more complicated case, flush out all 2232100979Srwatson * pending changes to the object then turn it 2233100979Srwatson * copy-on-write. 2234100979Srwatson */ 2235100979Srwatson vm_object_reference(object); 2236100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2237100979Srwatson vm_object_page_clean(object, 2238100979Srwatson OFF_TO_IDX(offset), 2239100979Srwatson OFF_TO_IDX(offset + vme->end - vme->start + 2240100979Srwatson PAGE_MASK), 2241100979Srwatson OBJPC_SYNC); 2242100979Srwatson VOP_UNLOCK(vp, 0, td); 2243100979Srwatson vm_object_deallocate(object); 2244100979Srwatson /* 2245100979Srwatson * Why bother if there's no read permissions 2246100979Srwatson * anymore? For the rest, we need to leave 2247100979Srwatson * the write permissions on for COW, or 2248100979Srwatson * remove them entirely if configured to. 2249100979Srwatson */ 2250100979Srwatson if (!mac_mmap_revocation_via_cow) { 2251100979Srwatson vme->max_protection &= ~VM_PROT_WRITE; 2252100979Srwatson vme->protection &= ~VM_PROT_WRITE; 2253100979Srwatson } if ((revokeperms & VM_PROT_READ) == 0) 2254100979Srwatson vme->eflags |= MAP_ENTRY_COW | 2255100979Srwatson MAP_ENTRY_NEEDS_COPY; 2256100979Srwatson } 2257100979Srwatson if (revokeperms & VM_PROT_EXECUTE) { 2258100979Srwatson vme->max_protection &= ~VM_PROT_EXECUTE; 2259100979Srwatson vme->protection &= ~VM_PROT_EXECUTE; 2260100979Srwatson } 2261100979Srwatson if (revokeperms & VM_PROT_READ) { 2262100979Srwatson vme->max_protection = 0; 2263100979Srwatson vme->protection = 0; 2264100979Srwatson } 2265100979Srwatson pmap_protect(map->pmap, vme->start, vme->end, 2266100979Srwatson vme->protection & ~revokeperms); 2267100979Srwatson vm_map_simplify_entry(map, vme); 2268100979Srwatson } 2269100979Srwatson vm_map_lock_downgrade(map); 2270100979Srwatson } 2271100979Srwatson vm_map_unlock_read(map); 2272100979Srwatson} 2273100979Srwatson 2274100979Srwatson/* 2275100979Srwatson * When the subject's label changes, it may require revocation of privilege 2276100979Srwatson * to mapped objects. This can't be done on-the-fly later with a unified 2277100979Srwatson * buffer cache. 2278100979Srwatson */ 2279100979Srwatsonstatic void 2280100979Srwatsonmac_relabel_cred(struct ucred *cred, struct label *newlabel) 2281100979Srwatson{ 2282100979Srwatson 2283100979Srwatson MAC_PERFORM(relabel_cred, cred, newlabel); 2284100979Srwatson} 2285100979Srwatson 2286100979Srwatsonvoid 2287100979Srwatsonmac_relabel_vnode(struct ucred *cred, struct vnode *vp, struct label *newlabel) 2288100979Srwatson{ 2289100979Srwatson 2290100979Srwatson MAC_PERFORM(relabel_vnode, cred, vp, &vp->v_label, newlabel); 2291100979Srwatson} 2292100979Srwatson 2293100979Srwatsonvoid 2294100979Srwatsonmac_create_ifnet(struct ifnet *ifnet) 2295100979Srwatson{ 2296100979Srwatson 2297100979Srwatson MAC_PERFORM(create_ifnet, ifnet, &ifnet->if_label); 2298100979Srwatson} 2299100979Srwatson 2300100979Srwatsonvoid 2301100979Srwatsonmac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d) 2302100979Srwatson{ 2303100979Srwatson 2304100979Srwatson MAC_PERFORM(create_bpfdesc, cred, bpf_d, &bpf_d->bd_label); 2305100979Srwatson} 2306100979Srwatson 2307100979Srwatsonvoid 2308100979Srwatsonmac_create_socket(struct ucred *cred, struct socket *socket) 2309100979Srwatson{ 2310100979Srwatson 2311100979Srwatson MAC_PERFORM(create_socket, cred, socket, &socket->so_label); 2312100979Srwatson} 2313100979Srwatson 2314100979Srwatsonvoid 2315100979Srwatsonmac_create_pipe(struct ucred *cred, struct pipe *pipe) 2316100979Srwatson{ 2317100979Srwatson 2318100979Srwatson MAC_PERFORM(create_pipe, cred, pipe, pipe->pipe_label); 2319100979Srwatson} 2320100979Srwatson 2321100979Srwatsonvoid 2322100979Srwatsonmac_create_socket_from_socket(struct socket *oldsocket, 2323100979Srwatson struct socket *newsocket) 2324100979Srwatson{ 2325100979Srwatson 2326100979Srwatson MAC_PERFORM(create_socket_from_socket, oldsocket, &oldsocket->so_label, 2327100979Srwatson newsocket, &newsocket->so_label); 2328100979Srwatson} 2329100979Srwatson 2330100979Srwatsonstatic void 2331100979Srwatsonmac_relabel_socket(struct ucred *cred, struct socket *socket, 2332100979Srwatson struct label *newlabel) 2333100979Srwatson{ 2334100979Srwatson 2335100979Srwatson MAC_PERFORM(relabel_socket, cred, socket, &socket->so_label, newlabel); 2336100979Srwatson} 2337100979Srwatson 2338100979Srwatsonstatic void 2339100979Srwatsonmac_relabel_pipe(struct ucred *cred, struct pipe *pipe, struct label *newlabel) 2340100979Srwatson{ 2341100979Srwatson 2342100979Srwatson MAC_PERFORM(relabel_pipe, cred, pipe, pipe->pipe_label, newlabel); 2343100979Srwatson} 2344100979Srwatson 2345100979Srwatsonvoid 2346100979Srwatsonmac_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct socket *socket) 2347100979Srwatson{ 2348100979Srwatson 2349100979Srwatson MAC_PERFORM(set_socket_peer_from_mbuf, mbuf, &mbuf->m_pkthdr.label, 2350100979Srwatson socket, &socket->so_peerlabel); 2351100979Srwatson} 2352100979Srwatson 2353100979Srwatsonvoid 2354100979Srwatsonmac_set_socket_peer_from_socket(struct socket *oldsocket, 2355100979Srwatson struct socket *newsocket) 2356100979Srwatson{ 2357100979Srwatson 2358100979Srwatson MAC_PERFORM(set_socket_peer_from_socket, oldsocket, 2359100979Srwatson &oldsocket->so_label, newsocket, &newsocket->so_peerlabel); 2360100979Srwatson} 2361100979Srwatson 2362100979Srwatsonvoid 2363100979Srwatsonmac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram) 2364100979Srwatson{ 2365100979Srwatson 2366100979Srwatson MAC_PERFORM(create_datagram_from_ipq, ipq, &ipq->ipq_label, 2367100979Srwatson datagram, &datagram->m_pkthdr.label); 2368100979Srwatson} 2369100979Srwatson 2370100979Srwatsonvoid 2371100979Srwatsonmac_create_fragment(struct mbuf *datagram, struct mbuf *fragment) 2372100979Srwatson{ 2373100979Srwatson 2374100979Srwatson MAC_PERFORM(create_fragment, datagram, &datagram->m_pkthdr.label, 2375100979Srwatson fragment, &fragment->m_pkthdr.label); 2376100979Srwatson} 2377100979Srwatson 2378100979Srwatsonvoid 2379100979Srwatsonmac_create_ipq(struct mbuf *fragment, struct ipq *ipq) 2380100979Srwatson{ 2381100979Srwatson 2382100979Srwatson MAC_PERFORM(create_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2383100979Srwatson &ipq->ipq_label); 2384100979Srwatson} 2385100979Srwatson 2386100979Srwatsonvoid 2387100979Srwatsonmac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2388100979Srwatson{ 2389100979Srwatson 2390100979Srwatson MAC_PERFORM(create_mbuf_from_mbuf, oldmbuf, &oldmbuf->m_pkthdr.label, 2391100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2392100979Srwatson} 2393100979Srwatson 2394100979Srwatsonvoid 2395100979Srwatsonmac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *mbuf) 2396100979Srwatson{ 2397100979Srwatson 2398100979Srwatson MAC_PERFORM(create_mbuf_from_bpfdesc, bpf_d, &bpf_d->bd_label, mbuf, 2399100979Srwatson &mbuf->m_pkthdr.label); 2400100979Srwatson} 2401100979Srwatson 2402100979Srwatsonvoid 2403100979Srwatsonmac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *mbuf) 2404100979Srwatson{ 2405100979Srwatson 2406100979Srwatson MAC_PERFORM(create_mbuf_linklayer, ifnet, &ifnet->if_label, mbuf, 2407100979Srwatson &mbuf->m_pkthdr.label); 2408100979Srwatson} 2409100979Srwatson 2410100979Srwatsonvoid 2411100979Srwatsonmac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *mbuf) 2412100979Srwatson{ 2413100979Srwatson 2414100979Srwatson MAC_PERFORM(create_mbuf_from_ifnet, ifnet, &ifnet->if_label, mbuf, 2415100979Srwatson &mbuf->m_pkthdr.label); 2416100979Srwatson} 2417100979Srwatson 2418100979Srwatsonvoid 2419100979Srwatsonmac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, struct ifnet *ifnet, 2420100979Srwatson struct mbuf *newmbuf) 2421100979Srwatson{ 2422100979Srwatson 2423100979Srwatson MAC_PERFORM(create_mbuf_multicast_encap, oldmbuf, 2424100979Srwatson &oldmbuf->m_pkthdr.label, ifnet, &ifnet->if_label, newmbuf, 2425100979Srwatson &newmbuf->m_pkthdr.label); 2426100979Srwatson} 2427100979Srwatson 2428100979Srwatsonvoid 2429100979Srwatsonmac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2430100979Srwatson{ 2431100979Srwatson 2432100979Srwatson MAC_PERFORM(create_mbuf_netlayer, oldmbuf, &oldmbuf->m_pkthdr.label, 2433100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2434100979Srwatson} 2435100979Srwatson 2436100979Srwatsonint 2437100979Srwatsonmac_fragment_match(struct mbuf *fragment, struct ipq *ipq) 2438100979Srwatson{ 2439100979Srwatson int result; 2440100979Srwatson 2441100979Srwatson result = 1; 2442100979Srwatson MAC_BOOLEAN(fragment_match, &&, fragment, &fragment->m_pkthdr.label, 2443100979Srwatson ipq, &ipq->ipq_label); 2444100979Srwatson 2445100979Srwatson return (result); 2446100979Srwatson} 2447100979Srwatson 2448100979Srwatsonvoid 2449100979Srwatsonmac_update_ipq(struct mbuf *fragment, struct ipq *ipq) 2450100979Srwatson{ 2451100979Srwatson 2452100979Srwatson MAC_PERFORM(update_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2453100979Srwatson &ipq->ipq_label); 2454100979Srwatson} 2455100979Srwatson 2456100979Srwatsonvoid 2457100979Srwatsonmac_create_mbuf_from_socket(struct socket *socket, struct mbuf *mbuf) 2458100979Srwatson{ 2459100979Srwatson 2460100979Srwatson MAC_PERFORM(create_mbuf_from_socket, socket, &socket->so_label, mbuf, 2461100979Srwatson &mbuf->m_pkthdr.label); 2462100979Srwatson} 2463100979Srwatson 2464100979Srwatsonvoid 2465100979Srwatsonmac_create_mount(struct ucred *cred, struct mount *mp) 2466100979Srwatson{ 2467100979Srwatson 2468100979Srwatson MAC_PERFORM(create_mount, cred, mp, &mp->mnt_mntlabel, 2469100979Srwatson &mp->mnt_fslabel); 2470100979Srwatson} 2471100979Srwatson 2472100979Srwatsonvoid 2473100979Srwatsonmac_create_root_mount(struct ucred *cred, struct mount *mp) 2474100979Srwatson{ 2475100979Srwatson 2476100979Srwatson MAC_PERFORM(create_root_mount, cred, mp, &mp->mnt_mntlabel, 2477100979Srwatson &mp->mnt_fslabel); 2478100979Srwatson} 2479100979Srwatson 2480100979Srwatsonint 2481100979Srwatsonmac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet) 2482100979Srwatson{ 2483100979Srwatson int error; 2484100979Srwatson 2485100979Srwatson if (!mac_enforce_network) 2486100979Srwatson return (0); 2487100979Srwatson 2488100979Srwatson MAC_CHECK(check_bpfdesc_receive, bpf_d, &bpf_d->bd_label, ifnet, 2489100979Srwatson &ifnet->if_label); 2490100979Srwatson 2491100979Srwatson return (error); 2492100979Srwatson} 2493100979Srwatson 2494100979Srwatsonstatic int 2495100979Srwatsonmac_check_cred_relabel(struct ucred *cred, struct label *newlabel) 2496100979Srwatson{ 2497100979Srwatson int error; 2498100979Srwatson 2499100979Srwatson MAC_CHECK(check_cred_relabel, cred, newlabel); 2500100979Srwatson 2501100979Srwatson return (error); 2502100979Srwatson} 2503100979Srwatson 2504100979Srwatsonint 2505100979Srwatsonmac_check_cred_visible(struct ucred *u1, struct ucred *u2) 2506100979Srwatson{ 2507100979Srwatson int error; 2508100979Srwatson 2509100979Srwatson if (!mac_enforce_process) 2510100979Srwatson return (0); 2511100979Srwatson 2512100979Srwatson MAC_CHECK(check_cred_visible, u1, u2); 2513100979Srwatson 2514100979Srwatson return (error); 2515100979Srwatson} 2516100979Srwatson 2517100979Srwatsonint 2518100979Srwatsonmac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *mbuf) 2519100979Srwatson{ 2520100979Srwatson int error; 2521100979Srwatson 2522100979Srwatson if (!mac_enforce_network) 2523100979Srwatson return (0); 2524100979Srwatson 2525100979Srwatson KASSERT(mbuf->m_flags & M_PKTHDR, ("packet has no pkthdr")); 2526100979Srwatson if (!(mbuf->m_pkthdr.label.l_flags & MAC_FLAG_INITIALIZED)) 2527100979Srwatson printf("%s%d: not initialized\n", ifnet->if_name, 2528100979Srwatson ifnet->if_unit); 2529100979Srwatson 2530100979Srwatson MAC_CHECK(check_ifnet_transmit, ifnet, &ifnet->if_label, mbuf, 2531100979Srwatson &mbuf->m_pkthdr.label); 2532100979Srwatson 2533100979Srwatson return (error); 2534100979Srwatson} 2535100979Srwatson 2536100979Srwatsonint 2537100979Srwatsonmac_check_mount_stat(struct ucred *cred, struct mount *mount) 2538100979Srwatson{ 2539100979Srwatson int error; 2540100979Srwatson 2541100979Srwatson if (!mac_enforce_fs) 2542100979Srwatson return (0); 2543100979Srwatson 2544100979Srwatson MAC_CHECK(check_mount_stat, cred, mount, &mount->mnt_mntlabel); 2545100979Srwatson 2546100979Srwatson return (error); 2547100979Srwatson} 2548100979Srwatson 2549100979Srwatsonint 2550100979Srwatsonmac_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe, unsigned long cmd, 2551100979Srwatson void *data) 2552100979Srwatson{ 2553100979Srwatson int error; 2554100979Srwatson 2555100979Srwatson MAC_CHECK(check_pipe_ioctl, cred, pipe, pipe->pipe_label, cmd, data); 2556100979Srwatson 2557100979Srwatson return (error); 2558100979Srwatson} 2559100979Srwatson 2560100979Srwatsonint 2561102115Srwatsonmac_check_pipe_poll(struct ucred *cred, struct pipe *pipe) 2562100979Srwatson{ 2563100979Srwatson int error; 2564100979Srwatson 2565102115Srwatson MAC_CHECK(check_pipe_poll, cred, pipe, pipe->pipe_label); 2566100979Srwatson 2567100979Srwatson return (error); 2568100979Srwatson} 2569100979Srwatson 2570102115Srwatsonint 2571102115Srwatsonmac_check_pipe_read(struct ucred *cred, struct pipe *pipe) 2572102115Srwatson{ 2573102115Srwatson int error; 2574102115Srwatson 2575102115Srwatson MAC_CHECK(check_pipe_read, cred, pipe, pipe->pipe_label); 2576102115Srwatson 2577102115Srwatson return (error); 2578102115Srwatson} 2579102115Srwatson 2580100979Srwatsonstatic int 2581100979Srwatsonmac_check_pipe_relabel(struct ucred *cred, struct pipe *pipe, 2582100979Srwatson struct label *newlabel) 2583100979Srwatson{ 2584100979Srwatson int error; 2585100979Srwatson 2586100979Srwatson MAC_CHECK(check_pipe_relabel, cred, pipe, pipe->pipe_label, newlabel); 2587100979Srwatson 2588100979Srwatson return (error); 2589100979Srwatson} 2590100979Srwatson 2591100979Srwatsonint 2592102115Srwatsonmac_check_pipe_stat(struct ucred *cred, struct pipe *pipe) 2593102115Srwatson{ 2594102115Srwatson int error; 2595102115Srwatson 2596102115Srwatson MAC_CHECK(check_pipe_stat, cred, pipe, pipe->pipe_label); 2597102115Srwatson 2598102115Srwatson return (error); 2599102115Srwatson} 2600102115Srwatson 2601102115Srwatsonint 2602102115Srwatsonmac_check_pipe_write(struct ucred *cred, struct pipe *pipe) 2603102115Srwatson{ 2604102115Srwatson int error; 2605102115Srwatson 2606102115Srwatson MAC_CHECK(check_pipe_write, cred, pipe, pipe->pipe_label); 2607102115Srwatson 2608102115Srwatson return (error); 2609102115Srwatson} 2610102115Srwatson 2611102115Srwatsonint 2612100979Srwatsonmac_check_proc_debug(struct ucred *cred, struct proc *proc) 2613100979Srwatson{ 2614100979Srwatson int error; 2615100979Srwatson 2616102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2617102103Srwatson 2618100979Srwatson if (!mac_enforce_process) 2619100979Srwatson return (0); 2620100979Srwatson 2621100979Srwatson MAC_CHECK(check_proc_debug, cred, proc); 2622100979Srwatson 2623100979Srwatson return (error); 2624100979Srwatson} 2625100979Srwatson 2626100979Srwatsonint 2627100979Srwatsonmac_check_proc_sched(struct ucred *cred, struct proc *proc) 2628100979Srwatson{ 2629100979Srwatson int error; 2630100979Srwatson 2631102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2632102103Srwatson 2633100979Srwatson if (!mac_enforce_process) 2634100979Srwatson return (0); 2635100979Srwatson 2636100979Srwatson MAC_CHECK(check_proc_sched, cred, proc); 2637100979Srwatson 2638100979Srwatson return (error); 2639100979Srwatson} 2640100979Srwatson 2641100979Srwatsonint 2642100979Srwatsonmac_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 2643100979Srwatson{ 2644100979Srwatson int error; 2645100979Srwatson 2646102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2647102103Srwatson 2648100979Srwatson if (!mac_enforce_process) 2649100979Srwatson return (0); 2650100979Srwatson 2651100979Srwatson MAC_CHECK(check_proc_signal, cred, proc, signum); 2652100979Srwatson 2653100979Srwatson return (error); 2654100979Srwatson} 2655100979Srwatson 2656100979Srwatsonint 2657100979Srwatsonmac_check_socket_bind(struct ucred *ucred, struct socket *socket, 2658100979Srwatson struct sockaddr *sockaddr) 2659100979Srwatson{ 2660100979Srwatson int error; 2661100979Srwatson 2662100979Srwatson if (!mac_enforce_socket) 2663100979Srwatson return (0); 2664100979Srwatson 2665100979Srwatson MAC_CHECK(check_socket_bind, ucred, socket, &socket->so_label, 2666100979Srwatson sockaddr); 2667100979Srwatson 2668100979Srwatson return (error); 2669100979Srwatson} 2670100979Srwatson 2671100979Srwatsonint 2672100979Srwatsonmac_check_socket_connect(struct ucred *cred, struct socket *socket, 2673100979Srwatson struct sockaddr *sockaddr) 2674100979Srwatson{ 2675100979Srwatson int error; 2676100979Srwatson 2677100979Srwatson if (!mac_enforce_socket) 2678100979Srwatson return (0); 2679100979Srwatson 2680100979Srwatson MAC_CHECK(check_socket_connect, cred, socket, &socket->so_label, 2681100979Srwatson sockaddr); 2682100979Srwatson 2683100979Srwatson return (error); 2684100979Srwatson} 2685100979Srwatson 2686100979Srwatsonint 2687101933Srwatsonmac_check_socket_deliver(struct socket *socket, struct mbuf *mbuf) 2688100979Srwatson{ 2689100979Srwatson int error; 2690100979Srwatson 2691100979Srwatson if (!mac_enforce_socket) 2692100979Srwatson return (0); 2693100979Srwatson 2694101933Srwatson MAC_CHECK(check_socket_deliver, socket, &socket->so_label, mbuf, 2695101933Srwatson &mbuf->m_pkthdr.label); 2696101933Srwatson 2697100979Srwatson return (error); 2698100979Srwatson} 2699100979Srwatson 2700100979Srwatsonint 2701101933Srwatsonmac_check_socket_listen(struct ucred *cred, struct socket *socket) 2702100979Srwatson{ 2703100979Srwatson int error; 2704100979Srwatson 2705100979Srwatson if (!mac_enforce_socket) 2706100979Srwatson return (0); 2707100979Srwatson 2708101933Srwatson MAC_CHECK(check_socket_listen, cred, socket, &socket->so_label); 2709100979Srwatson return (error); 2710100979Srwatson} 2711100979Srwatson 2712100979Srwatsonstatic int 2713100979Srwatsonmac_check_socket_relabel(struct ucred *cred, struct socket *socket, 2714100979Srwatson struct label *newlabel) 2715100979Srwatson{ 2716100979Srwatson int error; 2717100979Srwatson 2718100979Srwatson MAC_CHECK(check_socket_relabel, cred, socket, &socket->so_label, 2719100979Srwatson newlabel); 2720100979Srwatson 2721100979Srwatson return (error); 2722100979Srwatson} 2723100979Srwatson 2724100979Srwatsonint 2725100979Srwatsonmac_check_socket_visible(struct ucred *cred, struct socket *socket) 2726100979Srwatson{ 2727100979Srwatson int error; 2728100979Srwatson 2729100979Srwatson if (!mac_enforce_socket) 2730100979Srwatson return (0); 2731100979Srwatson 2732100979Srwatson MAC_CHECK(check_socket_visible, cred, socket, &socket->so_label); 2733100979Srwatson 2734100979Srwatson return (error); 2735100979Srwatson} 2736100979Srwatson 2737100979Srwatsonint 2738100979Srwatsonmac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, 2739100979Srwatson struct ifnet *ifnet) 2740100979Srwatson{ 2741100979Srwatson struct mac label; 2742100979Srwatson int error; 2743100979Srwatson 2744100979Srwatson error = mac_externalize(&ifnet->if_label, &label); 2745100979Srwatson if (error) 2746100979Srwatson return (error); 2747100979Srwatson 2748100979Srwatson return (copyout(&label, ifr->ifr_ifru.ifru_data, sizeof(label))); 2749100979Srwatson} 2750100979Srwatson 2751100979Srwatsonint 2752100979Srwatsonmac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, 2753100979Srwatson struct ifnet *ifnet) 2754100979Srwatson{ 2755100979Srwatson struct mac newlabel; 2756100979Srwatson struct label intlabel; 2757100979Srwatson int error; 2758100979Srwatson 2759100979Srwatson error = copyin(ifr->ifr_ifru.ifru_data, &newlabel, sizeof(newlabel)); 2760100979Srwatson if (error) 2761100979Srwatson return (error); 2762100979Srwatson 2763100979Srwatson error = mac_internalize(&intlabel, &newlabel); 2764100979Srwatson if (error) 2765100979Srwatson return (error); 2766100979Srwatson 2767100979Srwatson /* 2768100979Srwatson * XXX: Note that this is a redundant privilege check, since 2769100979Srwatson * policies impose this check themselves if required by the 2770100979Srwatson * policy. Eventually, this should go away. 2771100979Srwatson */ 2772100979Srwatson error = suser_cred(cred, 0); 2773100979Srwatson if (error) 2774100979Srwatson goto out; 2775100979Srwatson 2776100979Srwatson MAC_CHECK(check_ifnet_relabel, cred, ifnet, &ifnet->if_label, 2777100979Srwatson &intlabel); 2778100979Srwatson if (error) 2779100979Srwatson goto out; 2780100979Srwatson 2781100979Srwatson MAC_PERFORM(relabel_ifnet, cred, ifnet, &ifnet->if_label, &intlabel); 2782100979Srwatson 2783100979Srwatsonout: 2784100979Srwatson mac_destroy_temp(&intlabel); 2785100979Srwatson return (error); 2786100979Srwatson} 2787100979Srwatson 2788100979Srwatsonvoid 2789100979Srwatsonmac_create_devfs_vnode(struct devfs_dirent *de, struct vnode *vp) 2790100979Srwatson{ 2791100979Srwatson 2792100979Srwatson MAC_PERFORM(create_devfs_vnode, de, &de->de_label, vp, &vp->v_label); 2793100979Srwatson} 2794100979Srwatson 2795100979Srwatsonvoid 2796100979Srwatsonmac_create_devfs_device(dev_t dev, struct devfs_dirent *de) 2797100979Srwatson{ 2798100979Srwatson 2799100979Srwatson MAC_PERFORM(create_devfs_device, dev, de, &de->de_label); 2800100979Srwatson} 2801100979Srwatson 2802100979Srwatsonstatic int 2803100979Srwatsonmac_stdcreatevnode_ea(struct vnode *vp) 2804100979Srwatson{ 2805100979Srwatson int error; 2806100979Srwatson 2807100979Srwatson MAC_CHECK(stdcreatevnode_ea, vp, &vp->v_label); 2808100979Srwatson 2809100979Srwatson return (error); 2810100979Srwatson} 2811100979Srwatson 2812100979Srwatsonvoid 2813100979Srwatsonmac_create_devfs_directory(char *dirname, int dirnamelen, 2814100979Srwatson struct devfs_dirent *de) 2815100979Srwatson{ 2816100979Srwatson 2817100979Srwatson MAC_PERFORM(create_devfs_directory, dirname, dirnamelen, de, 2818100979Srwatson &de->de_label); 2819100979Srwatson} 2820100979Srwatson 2821100979Srwatson/* 2822100979Srwatson * When a new vnode is created, this call will initialize its label. 2823100979Srwatson */ 2824100979Srwatsonvoid 2825100979Srwatsonmac_create_vnode(struct ucred *cred, struct vnode *parent, 2826100979Srwatson struct vnode *child) 2827100979Srwatson{ 2828100979Srwatson int error; 2829100979Srwatson 2830100979Srwatson ASSERT_VOP_LOCKED(parent, "mac_create_vnode"); 2831100979Srwatson ASSERT_VOP_LOCKED(child, "mac_create_vnode"); 2832100979Srwatson 2833100979Srwatson error = vn_refreshlabel(parent, cred); 2834100979Srwatson if (error) { 2835100979Srwatson printf("mac_create_vnode: vn_refreshlabel returned %d\n", 2836100979Srwatson error); 2837100979Srwatson printf("mac_create_vnode: using old vnode label\n"); 2838100979Srwatson } 2839100979Srwatson 2840100979Srwatson MAC_PERFORM(create_vnode, cred, parent, &parent->v_label, child, 2841100979Srwatson &child->v_label); 2842100979Srwatson} 2843100979Srwatson 2844100979Srwatsonint 2845100979Srwatsonmac_setsockopt_label_set(struct ucred *cred, struct socket *so, 2846100979Srwatson struct mac *extmac) 2847100979Srwatson{ 2848100979Srwatson struct label intlabel; 2849100979Srwatson int error; 2850100979Srwatson 2851100979Srwatson error = mac_internalize(&intlabel, extmac); 2852100979Srwatson if (error) 2853100979Srwatson return (error); 2854100979Srwatson 2855100979Srwatson mac_check_socket_relabel(cred, so, &intlabel); 2856100979Srwatson if (error) { 2857100979Srwatson mac_destroy_temp(&intlabel); 2858100979Srwatson return (error); 2859100979Srwatson } 2860100979Srwatson 2861100979Srwatson mac_relabel_socket(cred, so, &intlabel); 2862100979Srwatson 2863100979Srwatson mac_destroy_temp(&intlabel); 2864100979Srwatson return (0); 2865100979Srwatson} 2866100979Srwatson 2867100979Srwatsonint 2868100979Srwatsonmac_pipe_label_set(struct ucred *cred, struct pipe *pipe, struct label *label) 2869100979Srwatson{ 2870100979Srwatson int error; 2871100979Srwatson 2872100979Srwatson error = mac_check_pipe_relabel(cred, pipe, label); 2873100979Srwatson if (error) 2874100979Srwatson return (error); 2875100979Srwatson 2876100979Srwatson mac_relabel_pipe(cred, pipe, label); 2877100979Srwatson 2878100979Srwatson return (0); 2879100979Srwatson} 2880100979Srwatson 2881100979Srwatsonint 2882100979Srwatsonmac_getsockopt_label_get(struct ucred *cred, struct socket *so, 2883100979Srwatson struct mac *extmac) 2884100979Srwatson{ 2885100979Srwatson 2886100979Srwatson return (mac_externalize(&so->so_label, extmac)); 2887100979Srwatson} 2888100979Srwatson 2889100979Srwatsonint 2890100979Srwatsonmac_getsockopt_peerlabel_get(struct ucred *cred, struct socket *so, 2891100979Srwatson struct mac *extmac) 2892100979Srwatson{ 2893100979Srwatson 2894100979Srwatson return (mac_externalize(&so->so_peerlabel, extmac)); 2895100979Srwatson} 2896100979Srwatson 2897100979Srwatson/* 2898100979Srwatson * Implementation of VOP_SETLABEL() that relies on extended attributes 2899100979Srwatson * to store label data. Can be referenced by filesystems supporting 2900100979Srwatson * extended attributes. 2901100979Srwatson */ 2902100979Srwatsonint 2903100979Srwatsonvop_stdsetlabel_ea(struct vop_setlabel_args *ap) 2904100979Srwatson{ 2905100979Srwatson struct vnode *vp = ap->a_vp; 2906100979Srwatson struct label *intlabel = ap->a_label; 2907100979Srwatson struct mac extmac; 2908100979Srwatson int error; 2909100979Srwatson 2910100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdsetlabel_ea"); 2911100979Srwatson 2912100979Srwatson /* 2913100979Srwatson * XXX: Eventually call out to EA check/set calls here. 2914100979Srwatson * Be particularly careful to avoid race conditions, 2915100979Srwatson * consistency problems, and stability problems when 2916100979Srwatson * dealing with multiple EAs. In particular, we require 2917100979Srwatson * the ability to write multiple EAs on the same file in 2918100979Srwatson * a single transaction, which the current EA interface 2919100979Srwatson * does not provide. 2920100979Srwatson */ 2921100979Srwatson 2922100979Srwatson error = mac_externalize(intlabel, &extmac); 2923100979Srwatson if (error) 2924100979Srwatson return (error); 2925100979Srwatson 2926100979Srwatson error = vn_extattr_set(vp, IO_NODELOCKED, 2927100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 2928100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 2929100979Srwatson if (error) 2930100979Srwatson return (error); 2931100979Srwatson 2932100979Srwatson mac_relabel_vnode(ap->a_cred, vp, intlabel); 2933100979Srwatson 2934101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 2935100979Srwatson 2936100979Srwatson return (0); 2937100979Srwatson} 2938100979Srwatson 2939100979Srwatsonstatic int 2940100979Srwatsonvn_setlabel(struct vnode *vp, struct label *intlabel, struct ucred *cred) 2941100979Srwatson{ 2942100979Srwatson int error; 2943100979Srwatson 2944100979Srwatson if (vp->v_mount == NULL) { 2945100979Srwatson /* printf("vn_setlabel: null v_mount\n"); */ 2946100979Srwatson if (vp->v_tag != VT_NON) 2947100979Srwatson printf("vn_setlabel: null v_mount with non-VT_NON\n"); 2948100979Srwatson return (EBADF); 2949100979Srwatson } 2950100979Srwatson 2951100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) 2952100979Srwatson return (EOPNOTSUPP); 2953100979Srwatson 2954100979Srwatson /* 2955100979Srwatson * Multi-phase commit. First check the policies to confirm the 2956100979Srwatson * change is OK. Then commit via the filesystem. Finally, 2957100979Srwatson * update the actual vnode label. Question: maybe the filesystem 2958100979Srwatson * should update the vnode at the end as part of VOP_SETLABEL()? 2959100979Srwatson */ 2960100979Srwatson error = mac_check_vnode_relabel(cred, vp, intlabel); 2961100979Srwatson if (error) 2962100979Srwatson return (error); 2963100979Srwatson 2964100979Srwatson /* 2965100979Srwatson * VADMIN provides the opportunity for the filesystem to make 2966100979Srwatson * decisions about who is and is not able to modify labels 2967100979Srwatson * and protections on files. This might not be right. We can't 2968100979Srwatson * assume VOP_SETLABEL() will do it, because we might implement 2969100979Srwatson * that as part of vop_stdsetlabel_ea(). 2970100979Srwatson */ 2971100979Srwatson error = VOP_ACCESS(vp, VADMIN, cred, curthread); 2972100979Srwatson if (error) 2973100979Srwatson return (error); 2974100979Srwatson 2975100979Srwatson error = VOP_SETLABEL(vp, intlabel, cred, curthread); 2976100979Srwatson if (error) 2977100979Srwatson return (error); 2978100979Srwatson 2979100979Srwatson return (0); 2980100979Srwatson} 2981100979Srwatson 2982100979Srwatson/* 2983100979Srwatson * MPSAFE 2984100979Srwatson */ 2985100979Srwatsonint 2986100894Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 2987100894Srwatson{ 2988100979Srwatson struct mac extmac; 2989100979Srwatson int error; 2990100894Srwatson 2991100979Srwatson error = mac_externalize(&td->td_ucred->cr_label, &extmac); 2992100979Srwatson if (error == 0) 2993100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 2994100979Srwatson 2995100979Srwatson return (error); 2996100979Srwatson} 2997100979Srwatson 2998100979Srwatson/* 2999100979Srwatson * MPSAFE 3000100979Srwatson */ 3001100979Srwatsonint 3002100979Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3003100979Srwatson{ 3004100979Srwatson struct ucred *newcred, *oldcred; 3005100979Srwatson struct proc *p; 3006100979Srwatson struct mac extmac; 3007100979Srwatson struct label intlabel; 3008100979Srwatson int error; 3009100979Srwatson 3010100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3011100979Srwatson if (error) 3012100979Srwatson return (error); 3013100979Srwatson 3014100979Srwatson error = mac_internalize(&intlabel, &extmac); 3015100979Srwatson if (error) 3016100979Srwatson return (error); 3017100979Srwatson 3018100979Srwatson newcred = crget(); 3019100979Srwatson 3020100979Srwatson p = td->td_proc; 3021100979Srwatson PROC_LOCK(p); 3022100979Srwatson oldcred = p->p_ucred; 3023100979Srwatson 3024100979Srwatson error = mac_check_cred_relabel(oldcred, &intlabel); 3025100979Srwatson if (error) { 3026100979Srwatson PROC_UNLOCK(p); 3027100979Srwatson mac_destroy_temp(&intlabel); 3028100979Srwatson crfree(newcred); 3029100979Srwatson return (error); 3030100979Srwatson } 3031100979Srwatson 3032100979Srwatson setsugid(p); 3033100979Srwatson crcopy(newcred, oldcred); 3034100979Srwatson mac_relabel_cred(newcred, &intlabel); 3035102136Srwatson p->p_ucred = newcred; 3036100979Srwatson 3037102136Srwatson /* 3038102136Srwatson * Grab additional reference for use while revoking mmaps, prior 3039102136Srwatson * to releasing the proc lock and sharing the cred. 3040102136Srwatson */ 3041102136Srwatson crhold(newcred); 3042100979Srwatson PROC_UNLOCK(p); 3043102136Srwatson 3044103135Srwatson mtx_lock(&Giant); 3045102136Srwatson mac_cred_mmapped_drop_perms(td, newcred); 3046103135Srwatson mtx_unlock(&Giant); 3047102136Srwatson 3048102136Srwatson crfree(newcred); /* Free revocation reference. */ 3049100979Srwatson crfree(oldcred); 3050100979Srwatson mac_destroy_temp(&intlabel); 3051100979Srwatson return (0); 3052100979Srwatson} 3053100979Srwatson 3054100979Srwatson/* 3055100979Srwatson * MPSAFE 3056100979Srwatson */ 3057100979Srwatsonint 3058100979Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3059100979Srwatson{ 3060100979Srwatson struct file *fp; 3061100979Srwatson struct mac extmac; 3062100979Srwatson struct vnode *vp; 3063100979Srwatson struct pipe *pipe; 3064100979Srwatson int error; 3065100979Srwatson 3066100979Srwatson mtx_lock(&Giant); 3067100979Srwatson 3068100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3069100979Srwatson if (error) 3070100979Srwatson goto out; 3071100979Srwatson 3072100979Srwatson switch (fp->f_type) { 3073100979Srwatson case DTYPE_FIFO: 3074100979Srwatson case DTYPE_VNODE: 3075100979Srwatson vp = (struct vnode *)fp->f_data; 3076100979Srwatson 3077100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3078100979Srwatson error = vn_refreshlabel(vp, td->td_ucred); 3079100979Srwatson if (error == 0) 3080100979Srwatson error = mac_externalize(&vp->v_label, &extmac); 3081100979Srwatson VOP_UNLOCK(vp, 0, td); 3082100979Srwatson break; 3083100979Srwatson case DTYPE_PIPE: 3084100979Srwatson pipe = (struct pipe *)fp->f_data; 3085100979Srwatson error = mac_externalize(pipe->pipe_label, &extmac); 3086100979Srwatson break; 3087100979Srwatson default: 3088100979Srwatson error = EINVAL; 3089100979Srwatson } 3090100979Srwatson 3091100979Srwatson if (error == 0) 3092100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3093100979Srwatson 3094100979Srwatson fdrop(fp, td); 3095100979Srwatson 3096100979Srwatsonout: 3097100979Srwatson mtx_unlock(&Giant); 3098100979Srwatson return (error); 3099100979Srwatson} 3100100979Srwatson 3101100979Srwatson/* 3102100979Srwatson * MPSAFE 3103100979Srwatson */ 3104100979Srwatsonint 3105100979Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3106100979Srwatson{ 3107100979Srwatson struct nameidata nd; 3108100979Srwatson struct mac extmac; 3109100979Srwatson int error; 3110100979Srwatson 3111100979Srwatson mtx_lock(&Giant); 3112100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3113100979Srwatson SCARG(uap, path_p), td); 3114100979Srwatson error = namei(&nd); 3115100979Srwatson if (error) 3116100979Srwatson goto out; 3117100979Srwatson 3118100979Srwatson error = vn_refreshlabel(nd.ni_vp, td->td_ucred); 3119100979Srwatson if (error == 0) 3120100979Srwatson error = mac_externalize(&nd.ni_vp->v_label, &extmac); 3121100979Srwatson NDFREE(&nd, 0); 3122100979Srwatson if (error) 3123100979Srwatson goto out; 3124100979Srwatson 3125100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3126100979Srwatson 3127100979Srwatsonout: 3128100979Srwatson mtx_unlock(&Giant); 3129100979Srwatson return (error); 3130100979Srwatson} 3131100979Srwatson 3132100979Srwatson/* 3133100979Srwatson * MPSAFE 3134100979Srwatson */ 3135100979Srwatsonint 3136100979Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3137100979Srwatson{ 3138100979Srwatson struct file *fp; 3139100979Srwatson struct mac extmac; 3140100979Srwatson struct label intlabel; 3141100979Srwatson struct mount *mp; 3142100979Srwatson struct vnode *vp; 3143100979Srwatson struct pipe *pipe; 3144100979Srwatson int error; 3145100979Srwatson 3146100979Srwatson mtx_lock(&Giant); 3147100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3148100979Srwatson if (error) 3149100979Srwatson goto out1; 3150100979Srwatson 3151100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3152100979Srwatson if (error) 3153100979Srwatson goto out2; 3154100979Srwatson 3155100979Srwatson error = mac_internalize(&intlabel, &extmac); 3156100979Srwatson if (error) 3157100979Srwatson goto out2; 3158100979Srwatson 3159100979Srwatson switch (fp->f_type) { 3160100979Srwatson case DTYPE_FIFO: 3161100979Srwatson case DTYPE_VNODE: 3162100979Srwatson vp = (struct vnode *)fp->f_data; 3163100979Srwatson error = vn_start_write(vp, &mp, V_WAIT | PCATCH); 3164100979Srwatson if (error != 0) 3165100979Srwatson break; 3166100979Srwatson 3167100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3168100979Srwatson error = vn_setlabel(vp, &intlabel, td->td_ucred); 3169100979Srwatson VOP_UNLOCK(vp, 0, td); 3170100979Srwatson vn_finished_write(mp); 3171100979Srwatson mac_destroy_temp(&intlabel); 3172100979Srwatson break; 3173100979Srwatson case DTYPE_PIPE: 3174100979Srwatson pipe = (struct pipe *)fp->f_data; 3175100979Srwatson error = mac_pipe_label_set(td->td_ucred, pipe, &intlabel); 3176100979Srwatson break; 3177100979Srwatson default: 3178100979Srwatson error = EINVAL; 3179100979Srwatson } 3180100979Srwatson 3181100979Srwatsonout2: 3182100979Srwatson fdrop(fp, td); 3183100979Srwatsonout1: 3184100979Srwatson mtx_unlock(&Giant); 3185100979Srwatson return (error); 3186100979Srwatson} 3187100979Srwatson 3188100979Srwatson/* 3189100979Srwatson * MPSAFE 3190100979Srwatson */ 3191100979Srwatsonint 3192100979Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3193100979Srwatson{ 3194100979Srwatson struct nameidata nd; 3195100979Srwatson struct mac extmac; 3196100979Srwatson struct label intlabel; 3197100979Srwatson struct mount *mp; 3198100979Srwatson int error; 3199100979Srwatson 3200100979Srwatson mtx_lock(&Giant); 3201100979Srwatson 3202100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3203100979Srwatson if (error) 3204100979Srwatson goto out; 3205100979Srwatson 3206100979Srwatson error = mac_internalize(&intlabel, &extmac); 3207100979Srwatson if (error) 3208100979Srwatson goto out; 3209100979Srwatson 3210100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3211100979Srwatson SCARG(uap, path_p), td); 3212100979Srwatson error = namei(&nd); 3213100979Srwatson if (error) 3214100979Srwatson goto out2; 3215100979Srwatson error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH); 3216100979Srwatson if (error) 3217100979Srwatson goto out2; 3218100979Srwatson 3219100979Srwatson error = vn_setlabel(nd.ni_vp, &intlabel, td->td_ucred); 3220100979Srwatson 3221100979Srwatson vn_finished_write(mp); 3222100979Srwatsonout2: 3223100979Srwatson mac_destroy_temp(&intlabel); 3224100979Srwatson NDFREE(&nd, 0); 3225100979Srwatsonout: 3226100979Srwatson mtx_unlock(&Giant); 3227100979Srwatson return (error); 3228100979Srwatson} 3229100979Srwatson 3230102123Srwatsonint 3231102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3232102123Srwatson{ 3233102123Srwatson struct mac_policy_conf *mpc; 3234102123Srwatson char target[MAC_MAX_POLICY_NAME]; 3235102123Srwatson int error; 3236102123Srwatson 3237102123Srwatson error = copyinstr(SCARG(uap, policy), target, sizeof(target), NULL); 3238102123Srwatson if (error) 3239102123Srwatson return (error); 3240102123Srwatson 3241102123Srwatson error = ENOSYS; 3242102123Srwatson MAC_POLICY_LIST_BUSY(); 3243102123Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { 3244102123Srwatson if (strcmp(mpc->mpc_name, target) == 0 && 3245102123Srwatson mpc->mpc_ops->mpo_syscall != NULL) { 3246102123Srwatson error = mpc->mpc_ops->mpo_syscall(td, 3247102123Srwatson SCARG(uap, call), SCARG(uap, arg)); 3248102123Srwatson goto out; 3249102123Srwatson } 3250102123Srwatson } 3251102123Srwatson 3252102123Srwatsonout: 3253102123Srwatson MAC_POLICY_LIST_UNBUSY(); 3254102123Srwatson return (error); 3255102123Srwatson} 3256102123Srwatson 3257100979SrwatsonSYSINIT(mac, SI_SUB_MAC, SI_ORDER_FIRST, mac_init, NULL); 3258100979SrwatsonSYSINIT(mac_late, SI_SUB_MAC_LATE, SI_ORDER_FIRST, mac_late_init, NULL); 3259100979Srwatson 3260100979Srwatson#else /* !MAC */ 3261100979Srwatson 3262100979Srwatsonint 3263100979Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 3264100979Srwatson{ 3265100979Srwatson 3266100894Srwatson return (ENOSYS); 3267100894Srwatson} 3268100894Srwatson 3269100894Srwatsonint 3270100894Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3271100894Srwatson{ 3272100894Srwatson 3273100894Srwatson return (ENOSYS); 3274100894Srwatson} 3275100894Srwatson 3276100894Srwatsonint 3277100894Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3278100894Srwatson{ 3279100894Srwatson 3280100894Srwatson return (ENOSYS); 3281100894Srwatson} 3282100894Srwatson 3283100894Srwatsonint 3284100894Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3285100894Srwatson{ 3286100894Srwatson 3287100894Srwatson return (ENOSYS); 3288100894Srwatson} 3289100894Srwatson 3290100894Srwatsonint 3291100894Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3292100894Srwatson{ 3293100894Srwatson 3294100894Srwatson return (ENOSYS); 3295100894Srwatson} 3296100894Srwatson 3297100894Srwatsonint 3298100894Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3299100894Srwatson{ 3300100894Srwatson 3301100894Srwatson return (ENOSYS); 3302100894Srwatson} 3303100979Srwatson 3304102123Srwatsonint 3305102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3306102123Srwatson{ 3307102123Srwatson 3308102123Srwatson return (ENOSYS); 3309102123Srwatson} 3310102123Srwatson 3311100979Srwatson#endif /* !MAC */ 3312