mac_pipe.c revision 104268
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_pipe.c 104268 2002-10-01 03:24:20Z 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"); 100100979Srwatson#ifndef MAC_MAX_POLICIES 101100979Srwatson#define MAC_MAX_POLICIES 8 102100979Srwatson#endif 103100979Srwatson#if MAC_MAX_POLICIES > 32 104100979Srwatson#error "MAC_MAX_POLICIES too large" 105100979Srwatson#endif 106100979Srwatsonstatic unsigned int mac_max_policies = MAC_MAX_POLICIES; 107100979Srwatsonstatic unsigned int mac_policy_offsets_free = (1 << MAC_MAX_POLICIES) - 1; 108100979SrwatsonSYSCTL_UINT(_security_mac, OID_AUTO, max_policies, CTLFLAG_RD, 109100979Srwatson &mac_max_policies, 0, ""); 110100979Srwatson 111100979Srwatsonstatic int mac_late = 0; 112100979Srwatson 113100979Srwatsonstatic int mac_enforce_fs = 1; 114100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_fs, CTLFLAG_RW, 115100979Srwatson &mac_enforce_fs, 0, "Enforce MAC policy on file system objects"); 116100979SrwatsonTUNABLE_INT("security.mac.enforce_fs", &mac_enforce_fs); 117100979Srwatson 118100979Srwatsonstatic int mac_enforce_network = 1; 119100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_network, CTLFLAG_RW, 120100979Srwatson &mac_enforce_network, 0, "Enforce MAC policy on network packets"); 121100979SrwatsonTUNABLE_INT("security.mac.enforce_network", &mac_enforce_network); 122100979Srwatson 123103513Srwatsonstatic int mac_enforce_pipe = 1; 124103513SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_pipe, CTLFLAG_RW, 125103513Srwatson &mac_enforce_pipe, 0, "Enforce MAC policy on pipe operations"); 126104236SrwatsonTUNABLE_INT("security.mac.enforce_pipe", &mac_enforce_pipe); 127103513Srwatson 128100979Srwatsonstatic int mac_enforce_process = 1; 129100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_process, CTLFLAG_RW, 130100979Srwatson &mac_enforce_process, 0, "Enforce MAC policy on inter-process operations"); 131100979SrwatsonTUNABLE_INT("security.mac.enforce_process", &mac_enforce_process); 132100979Srwatson 133100979Srwatsonstatic int mac_enforce_socket = 1; 134100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_socket, CTLFLAG_RW, 135100979Srwatson &mac_enforce_socket, 0, "Enforce MAC policy on socket operations"); 136100979SrwatsonTUNABLE_INT("security.mac.enforce_socket", &mac_enforce_socket); 137100979Srwatson 138103514Srwatsonstatic int mac_enforce_vm = 1; 139103514SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_vm, CTLFLAG_RW, 140103514Srwatson &mac_enforce_vm, 0, "Enforce MAC policy on vm operations"); 141104236SrwatsonTUNABLE_INT("security.mac.enforce_vm", &mac_enforce_vm); 142103514Srwatson 143100979Srwatsonstatic int mac_label_size = sizeof(struct mac); 144100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, label_size, CTLFLAG_RD, 145100979Srwatson &mac_label_size, 0, "Pre-compiled MAC label size"); 146100979Srwatson 147100979Srwatsonstatic int mac_cache_fslabel_in_vnode = 1; 148100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, cache_fslabel_in_vnode, CTLFLAG_RW, 149100979Srwatson &mac_cache_fslabel_in_vnode, 0, "Cache mount fslabel in vnode"); 150100979SrwatsonTUNABLE_INT("security.mac.cache_fslabel_in_vnode", 151100979Srwatson &mac_cache_fslabel_in_vnode); 152100979Srwatson 153100979Srwatsonstatic int mac_vnode_label_cache_hits = 0; 154100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD, 155100979Srwatson &mac_vnode_label_cache_hits, 0, "Cache hits on vnode labels"); 156100979Srwatsonstatic int mac_vnode_label_cache_misses = 0; 157100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD, 158100979Srwatson &mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels"); 159103136Srwatson 160103136Srwatsonstatic int mac_mmap_revocation = 1; 161103136SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation, CTLFLAG_RW, 162103136Srwatson &mac_mmap_revocation, 0, "Revoke mmap access to files on subject " 163103136Srwatson "relabel"); 164101892Srwatsonstatic int mac_mmap_revocation_via_cow = 0; 165100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW, 166100979Srwatson &mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via " 167100979Srwatson "copy-on-write semantics, or by removing all write access"); 168100979Srwatson 169101988Srwatson#ifdef MAC_DEBUG 170104268SrwatsonSYSCTL_NODE(_security_mac, OID_AUTO, debug, CTLFLAG_RW, 0, 171104268Srwatson "TrustedBSD MAC debug info"); 172104268Srwatson 173104268Srwatsonstatic int mac_debug_label_fallback = 0; 174104268SrwatsonSYSCTL_INT(_security_mac_debug, OID_AUTO, label_fallback, CTLFLAG_RW, 175104268Srwatson &mac_debug_label_fallback, 0, "Filesystems should fall back to fs label" 176104268Srwatson "when label is corrupted."); 177104268SrwatsonTUNABLE_INT("security.mac.debug_label_fallback", 178104268Srwatson &mac_debug_label_fallback); 179104268Srwatson 180100979Srwatsonstatic unsigned int nmacmbufs, nmaccreds, nmacifnets, nmacbpfdescs, 181100979Srwatson nmacsockets, nmacmounts, nmactemp, nmacvnodes, nmacdevfsdirents, 182100979Srwatson nmacipqs, nmacpipes; 183100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, mbufs, CTLFLAG_RD, 184100979Srwatson &nmacmbufs, 0, "number of mbufs in use"); 185100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, creds, CTLFLAG_RD, 186100979Srwatson &nmaccreds, 0, "number of ucreds in use"); 187100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, ifnets, CTLFLAG_RD, 188100979Srwatson &nmacifnets, 0, "number of ifnets in use"); 189100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, ipqs, CTLFLAG_RD, 190100979Srwatson &nmacipqs, 0, "number of ipqs in use"); 191100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, bpfdescs, CTLFLAG_RD, 192100979Srwatson &nmacbpfdescs, 0, "number of bpfdescs in use"); 193100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, sockets, CTLFLAG_RD, 194100979Srwatson &nmacsockets, 0, "number of sockets in use"); 195100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, pipes, CTLFLAG_RD, 196100979Srwatson &nmacpipes, 0, "number of pipes in use"); 197100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, mounts, CTLFLAG_RD, 198100979Srwatson &nmacmounts, 0, "number of mounts in use"); 199100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, temp, CTLFLAG_RD, 200100979Srwatson &nmactemp, 0, "number of temporary labels in use"); 201100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, vnodes, CTLFLAG_RD, 202100979Srwatson &nmacvnodes, 0, "number of vnodes in use"); 203100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, devfsdirents, CTLFLAG_RD, 204100979Srwatson &nmacdevfsdirents, 0, "number of devfs dirents inuse"); 205101988Srwatson#endif 206100979Srwatson 207100979Srwatsonstatic int error_select(int error1, int error2); 208100979Srwatsonstatic int mac_externalize(struct label *label, struct mac *mac); 209100979Srwatsonstatic int mac_policy_register(struct mac_policy_conf *mpc); 210100979Srwatsonstatic int mac_policy_unregister(struct mac_policy_conf *mpc); 211100979Srwatson 212100979Srwatsonstatic int mac_stdcreatevnode_ea(struct vnode *vp); 213100979Srwatsonstatic void mac_cred_mmapped_drop_perms(struct thread *td, 214100979Srwatson struct ucred *cred); 215100979Srwatsonstatic void mac_cred_mmapped_drop_perms_recurse(struct thread *td, 216100979Srwatson struct ucred *cred, struct vm_map *map); 217100979Srwatson 218100979SrwatsonMALLOC_DEFINE(M_MACOPVEC, "macopvec", "MAC policy operation vector"); 219100979SrwatsonMALLOC_DEFINE(M_MACPIPELABEL, "macpipelabel", "MAC labels for pipes"); 220100979Srwatson 221100979Srwatson/* 222100979Srwatson * mac_policy_list_lock protects the consistency of 'mac_policy_list', 223100979Srwatson * the linked list of attached policy modules. Read-only consumers of 224100979Srwatson * the list must acquire a shared lock for the duration of their use; 225100979Srwatson * writers must acquire an exclusive lock. Note that for compound 226100979Srwatson * operations, locks should be held for the entire compound operation, 227100979Srwatson * and that this is not yet done for relabel requests. 228100979Srwatson */ 229100979Srwatsonstatic struct mtx mac_policy_list_lock; 230100979Srwatsonstatic LIST_HEAD(, mac_policy_conf) mac_policy_list; 231100979Srwatsonstatic int mac_policy_list_busy; 232100979Srwatson#define MAC_POLICY_LIST_LOCKINIT() mtx_init(&mac_policy_list_lock, \ 233100979Srwatson "mac_policy_list_lock", NULL, MTX_DEF); 234100979Srwatson#define MAC_POLICY_LIST_LOCK() mtx_lock(&mac_policy_list_lock); 235100979Srwatson#define MAC_POLICY_LIST_UNLOCK() mtx_unlock(&mac_policy_list_lock); 236100979Srwatson 237100979Srwatson#define MAC_POLICY_LIST_BUSY() do { \ 238100979Srwatson MAC_POLICY_LIST_LOCK(); \ 239100979Srwatson mac_policy_list_busy++; \ 240100979Srwatson MAC_POLICY_LIST_UNLOCK(); \ 241100979Srwatson} while (0) 242100979Srwatson 243100979Srwatson#define MAC_POLICY_LIST_UNBUSY() do { \ 244100979Srwatson MAC_POLICY_LIST_LOCK(); \ 245100979Srwatson mac_policy_list_busy--; \ 246100979Srwatson if (mac_policy_list_busy < 0) \ 247100979Srwatson panic("Extra mac_policy_list_busy--"); \ 248100979Srwatson MAC_POLICY_LIST_UNLOCK(); \ 249100979Srwatson} while (0) 250100979Srwatson 251100979Srwatson/* 252100979Srwatson * MAC_CHECK performs the designated check by walking the policy 253100979Srwatson * module list and checking with each as to how it feels about the 254100979Srwatson * request. Note that it returns its value via 'error' in the scope 255100979Srwatson * of the caller. 256100979Srwatson */ 257100979Srwatson#define MAC_CHECK(check, args...) do { \ 258100979Srwatson struct mac_policy_conf *mpc; \ 259100979Srwatson \ 260100979Srwatson error = 0; \ 261100979Srwatson MAC_POLICY_LIST_BUSY(); \ 262100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 263100979Srwatson if (mpc->mpc_ops->mpo_ ## check != NULL) \ 264100979Srwatson error = error_select( \ 265100979Srwatson mpc->mpc_ops->mpo_ ## check (args), \ 266100979Srwatson error); \ 267100979Srwatson } \ 268100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 269100979Srwatson} while (0) 270100979Srwatson 271100979Srwatson/* 272100979Srwatson * MAC_BOOLEAN performs the designated boolean composition by walking 273100979Srwatson * the module list, invoking each instance of the operation, and 274100979Srwatson * combining the results using the passed C operator. Note that it 275100979Srwatson * returns its value via 'result' in the scope of the caller, which 276100979Srwatson * should be initialized by the caller in a meaningful way to get 277100979Srwatson * a meaningful result. 278100979Srwatson */ 279100979Srwatson#define MAC_BOOLEAN(operation, composition, args...) do { \ 280100979Srwatson struct mac_policy_conf *mpc; \ 281100979Srwatson \ 282100979Srwatson MAC_POLICY_LIST_BUSY(); \ 283100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 284100979Srwatson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 285100979Srwatson result = result composition \ 286100979Srwatson mpc->mpc_ops->mpo_ ## operation (args); \ 287100979Srwatson } \ 288100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 289100979Srwatson} while (0) 290100979Srwatson 291100979Srwatson/* 292100979Srwatson * MAC_PERFORM performs the designated operation by walking the policy 293100979Srwatson * module list and invoking that operation for each policy. 294100979Srwatson */ 295100979Srwatson#define MAC_PERFORM(operation, args...) do { \ 296100979Srwatson struct mac_policy_conf *mpc; \ 297100979Srwatson \ 298100979Srwatson MAC_POLICY_LIST_BUSY(); \ 299100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 300100979Srwatson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 301100979Srwatson mpc->mpc_ops->mpo_ ## operation (args); \ 302100979Srwatson } \ 303100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 304100979Srwatson} while (0) 305100979Srwatson 306100979Srwatson/* 307100979Srwatson * Initialize the MAC subsystem, including appropriate SMP locks. 308100979Srwatson */ 309100979Srwatsonstatic void 310100979Srwatsonmac_init(void) 311100979Srwatson{ 312100979Srwatson 313100979Srwatson LIST_INIT(&mac_policy_list); 314100979Srwatson MAC_POLICY_LIST_LOCKINIT(); 315100979Srwatson} 316100979Srwatson 317100979Srwatson/* 318100979Srwatson * For the purposes of modules that want to know if they were loaded 319100979Srwatson * "early", set the mac_late flag once we've processed modules either 320100979Srwatson * linked into the kernel, or loaded before the kernel startup. 321100979Srwatson */ 322100979Srwatsonstatic void 323100979Srwatsonmac_late_init(void) 324100979Srwatson{ 325100979Srwatson 326100979Srwatson mac_late = 1; 327100979Srwatson} 328100979Srwatson 329100979Srwatson/* 330100979Srwatson * Allow MAC policy modules to register during boot, etc. 331100979Srwatson */ 332100894Srwatsonint 333100979Srwatsonmac_policy_modevent(module_t mod, int type, void *data) 334100979Srwatson{ 335100979Srwatson struct mac_policy_conf *mpc; 336100979Srwatson int error; 337100979Srwatson 338100979Srwatson error = 0; 339100979Srwatson mpc = (struct mac_policy_conf *) data; 340100979Srwatson 341100979Srwatson switch (type) { 342100979Srwatson case MOD_LOAD: 343100979Srwatson if (mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_NOTLATE && 344100979Srwatson mac_late) { 345100979Srwatson printf("mac_policy_modevent: can't load %s policy " 346100979Srwatson "after booting\n", mpc->mpc_name); 347100979Srwatson error = EBUSY; 348100979Srwatson break; 349100979Srwatson } 350100979Srwatson error = mac_policy_register(mpc); 351100979Srwatson break; 352100979Srwatson case MOD_UNLOAD: 353100979Srwatson /* Don't unregister the module if it was never registered. */ 354100979Srwatson if ((mpc->mpc_runtime_flags & MPC_RUNTIME_FLAG_REGISTERED) 355100979Srwatson != 0) 356100979Srwatson error = mac_policy_unregister(mpc); 357100979Srwatson else 358100979Srwatson error = 0; 359100979Srwatson break; 360100979Srwatson default: 361100979Srwatson break; 362100979Srwatson } 363100979Srwatson 364100979Srwatson return (error); 365100979Srwatson} 366100979Srwatson 367100979Srwatsonstatic int 368100979Srwatsonmac_policy_register(struct mac_policy_conf *mpc) 369100979Srwatson{ 370100979Srwatson struct mac_policy_conf *tmpc; 371100979Srwatson struct mac_policy_op_entry *mpe; 372100979Srwatson int slot; 373100979Srwatson 374103570Srwatson MALLOC(mpc->mpc_ops, struct mac_policy_ops *, sizeof(*mpc->mpc_ops), 375103570Srwatson M_MACOPVEC, M_WAITOK | M_ZERO); 376100979Srwatson for (mpe = mpc->mpc_entries; mpe->mpe_constant != MAC_OP_LAST; mpe++) { 377100979Srwatson switch (mpe->mpe_constant) { 378100979Srwatson case MAC_OP_LAST: 379100979Srwatson /* 380100979Srwatson * Doesn't actually happen, but this allows checking 381100979Srwatson * that all enumerated values are handled. 382100979Srwatson */ 383100979Srwatson break; 384100979Srwatson case MAC_DESTROY: 385100979Srwatson mpc->mpc_ops->mpo_destroy = 386100979Srwatson mpe->mpe_function; 387100979Srwatson break; 388100979Srwatson case MAC_INIT: 389100979Srwatson mpc->mpc_ops->mpo_init = 390100979Srwatson mpe->mpe_function; 391100979Srwatson break; 392102123Srwatson case MAC_SYSCALL: 393102123Srwatson mpc->mpc_ops->mpo_syscall = 394102123Srwatson mpe->mpe_function; 395102123Srwatson break; 396100979Srwatson case MAC_INIT_BPFDESC: 397100979Srwatson mpc->mpc_ops->mpo_init_bpfdesc = 398100979Srwatson mpe->mpe_function; 399100979Srwatson break; 400100979Srwatson case MAC_INIT_CRED: 401100979Srwatson mpc->mpc_ops->mpo_init_cred = 402100979Srwatson mpe->mpe_function; 403100979Srwatson break; 404100979Srwatson case MAC_INIT_DEVFSDIRENT: 405100979Srwatson mpc->mpc_ops->mpo_init_devfsdirent = 406100979Srwatson mpe->mpe_function; 407100979Srwatson break; 408100979Srwatson case MAC_INIT_IFNET: 409100979Srwatson mpc->mpc_ops->mpo_init_ifnet = 410100979Srwatson mpe->mpe_function; 411100979Srwatson break; 412100979Srwatson case MAC_INIT_IPQ: 413100979Srwatson mpc->mpc_ops->mpo_init_ipq = 414100979Srwatson mpe->mpe_function; 415100979Srwatson break; 416100979Srwatson case MAC_INIT_MBUF: 417100979Srwatson mpc->mpc_ops->mpo_init_mbuf = 418100979Srwatson mpe->mpe_function; 419100979Srwatson break; 420100979Srwatson case MAC_INIT_MOUNT: 421100979Srwatson mpc->mpc_ops->mpo_init_mount = 422100979Srwatson mpe->mpe_function; 423100979Srwatson break; 424100979Srwatson case MAC_INIT_PIPE: 425100979Srwatson mpc->mpc_ops->mpo_init_pipe = 426100979Srwatson mpe->mpe_function; 427100979Srwatson break; 428100979Srwatson case MAC_INIT_SOCKET: 429100979Srwatson mpc->mpc_ops->mpo_init_socket = 430100979Srwatson mpe->mpe_function; 431100979Srwatson break; 432100979Srwatson case MAC_INIT_TEMP: 433100979Srwatson mpc->mpc_ops->mpo_init_temp = 434100979Srwatson mpe->mpe_function; 435100979Srwatson break; 436100979Srwatson case MAC_INIT_VNODE: 437100979Srwatson mpc->mpc_ops->mpo_init_vnode = 438100979Srwatson mpe->mpe_function; 439100979Srwatson break; 440100979Srwatson case MAC_DESTROY_BPFDESC: 441100979Srwatson mpc->mpc_ops->mpo_destroy_bpfdesc = 442100979Srwatson mpe->mpe_function; 443100979Srwatson break; 444100979Srwatson case MAC_DESTROY_CRED: 445100979Srwatson mpc->mpc_ops->mpo_destroy_cred = 446100979Srwatson mpe->mpe_function; 447100979Srwatson break; 448100979Srwatson case MAC_DESTROY_DEVFSDIRENT: 449100979Srwatson mpc->mpc_ops->mpo_destroy_devfsdirent = 450100979Srwatson mpe->mpe_function; 451100979Srwatson break; 452100979Srwatson case MAC_DESTROY_IFNET: 453100979Srwatson mpc->mpc_ops->mpo_destroy_ifnet = 454100979Srwatson mpe->mpe_function; 455100979Srwatson break; 456100979Srwatson case MAC_DESTROY_IPQ: 457100979Srwatson mpc->mpc_ops->mpo_destroy_ipq = 458100979Srwatson mpe->mpe_function; 459100979Srwatson break; 460100979Srwatson case MAC_DESTROY_MBUF: 461100979Srwatson mpc->mpc_ops->mpo_destroy_mbuf = 462100979Srwatson mpe->mpe_function; 463100979Srwatson break; 464100979Srwatson case MAC_DESTROY_MOUNT: 465100979Srwatson mpc->mpc_ops->mpo_destroy_mount = 466100979Srwatson mpe->mpe_function; 467100979Srwatson break; 468100979Srwatson case MAC_DESTROY_PIPE: 469100979Srwatson mpc->mpc_ops->mpo_destroy_pipe = 470100979Srwatson mpe->mpe_function; 471100979Srwatson break; 472100979Srwatson case MAC_DESTROY_SOCKET: 473100979Srwatson mpc->mpc_ops->mpo_destroy_socket = 474100979Srwatson mpe->mpe_function; 475100979Srwatson break; 476100979Srwatson case MAC_DESTROY_TEMP: 477100979Srwatson mpc->mpc_ops->mpo_destroy_temp = 478100979Srwatson mpe->mpe_function; 479100979Srwatson break; 480100979Srwatson case MAC_DESTROY_VNODE: 481100979Srwatson mpc->mpc_ops->mpo_destroy_vnode = 482100979Srwatson mpe->mpe_function; 483100979Srwatson break; 484100979Srwatson case MAC_EXTERNALIZE: 485100979Srwatson mpc->mpc_ops->mpo_externalize = 486100979Srwatson mpe->mpe_function; 487100979Srwatson break; 488100979Srwatson case MAC_INTERNALIZE: 489100979Srwatson mpc->mpc_ops->mpo_internalize = 490100979Srwatson mpe->mpe_function; 491100979Srwatson break; 492100979Srwatson case MAC_CREATE_DEVFS_DEVICE: 493100979Srwatson mpc->mpc_ops->mpo_create_devfs_device = 494100979Srwatson mpe->mpe_function; 495100979Srwatson break; 496100979Srwatson case MAC_CREATE_DEVFS_DIRECTORY: 497100979Srwatson mpc->mpc_ops->mpo_create_devfs_directory = 498100979Srwatson mpe->mpe_function; 499100979Srwatson break; 500100979Srwatson case MAC_CREATE_DEVFS_VNODE: 501100979Srwatson mpc->mpc_ops->mpo_create_devfs_vnode = 502100979Srwatson mpe->mpe_function; 503100979Srwatson break; 504100979Srwatson case MAC_STDCREATEVNODE_EA: 505100979Srwatson mpc->mpc_ops->mpo_stdcreatevnode_ea = 506100979Srwatson mpe->mpe_function; 507100979Srwatson break; 508100979Srwatson case MAC_CREATE_VNODE: 509100979Srwatson mpc->mpc_ops->mpo_create_vnode = 510100979Srwatson mpe->mpe_function; 511100979Srwatson break; 512100979Srwatson case MAC_CREATE_MOUNT: 513100979Srwatson mpc->mpc_ops->mpo_create_mount = 514100979Srwatson mpe->mpe_function; 515100979Srwatson break; 516100979Srwatson case MAC_CREATE_ROOT_MOUNT: 517100979Srwatson mpc->mpc_ops->mpo_create_root_mount = 518100979Srwatson mpe->mpe_function; 519100979Srwatson break; 520100979Srwatson case MAC_RELABEL_VNODE: 521100979Srwatson mpc->mpc_ops->mpo_relabel_vnode = 522100979Srwatson mpe->mpe_function; 523100979Srwatson break; 524100979Srwatson case MAC_UPDATE_DEVFSDIRENT: 525100979Srwatson mpc->mpc_ops->mpo_update_devfsdirent = 526100979Srwatson mpe->mpe_function; 527100979Srwatson break; 528100979Srwatson case MAC_UPDATE_PROCFSVNODE: 529100979Srwatson mpc->mpc_ops->mpo_update_procfsvnode = 530100979Srwatson mpe->mpe_function; 531100979Srwatson break; 532100979Srwatson case MAC_UPDATE_VNODE_FROM_EXTATTR: 533100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_extattr = 534100979Srwatson mpe->mpe_function; 535100979Srwatson break; 536100979Srwatson case MAC_UPDATE_VNODE_FROM_EXTERNALIZED: 537100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_externalized = 538100979Srwatson mpe->mpe_function; 539100979Srwatson break; 540100979Srwatson case MAC_UPDATE_VNODE_FROM_MOUNT: 541100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_mount = 542100979Srwatson mpe->mpe_function; 543100979Srwatson break; 544100979Srwatson case MAC_CREATE_MBUF_FROM_SOCKET: 545100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_socket = 546100979Srwatson mpe->mpe_function; 547100979Srwatson break; 548100979Srwatson case MAC_CREATE_PIPE: 549100979Srwatson mpc->mpc_ops->mpo_create_pipe = 550100979Srwatson mpe->mpe_function; 551100979Srwatson break; 552100979Srwatson case MAC_CREATE_SOCKET: 553100979Srwatson mpc->mpc_ops->mpo_create_socket = 554100979Srwatson mpe->mpe_function; 555100979Srwatson break; 556100979Srwatson case MAC_CREATE_SOCKET_FROM_SOCKET: 557100979Srwatson mpc->mpc_ops->mpo_create_socket_from_socket = 558100979Srwatson mpe->mpe_function; 559100979Srwatson break; 560100979Srwatson case MAC_RELABEL_PIPE: 561100979Srwatson mpc->mpc_ops->mpo_relabel_pipe = 562100979Srwatson mpe->mpe_function; 563100979Srwatson break; 564100979Srwatson case MAC_RELABEL_SOCKET: 565100979Srwatson mpc->mpc_ops->mpo_relabel_socket = 566100979Srwatson mpe->mpe_function; 567100979Srwatson break; 568100979Srwatson case MAC_SET_SOCKET_PEER_FROM_MBUF: 569100979Srwatson mpc->mpc_ops->mpo_set_socket_peer_from_mbuf = 570100979Srwatson mpe->mpe_function; 571100979Srwatson break; 572100979Srwatson case MAC_SET_SOCKET_PEER_FROM_SOCKET: 573100979Srwatson mpc->mpc_ops->mpo_set_socket_peer_from_socket = 574100979Srwatson mpe->mpe_function; 575100979Srwatson break; 576100979Srwatson case MAC_CREATE_BPFDESC: 577100979Srwatson mpc->mpc_ops->mpo_create_bpfdesc = 578100979Srwatson mpe->mpe_function; 579100979Srwatson break; 580100979Srwatson case MAC_CREATE_DATAGRAM_FROM_IPQ: 581100979Srwatson mpc->mpc_ops->mpo_create_datagram_from_ipq = 582100979Srwatson mpe->mpe_function; 583100979Srwatson break; 584100979Srwatson case MAC_CREATE_FRAGMENT: 585100979Srwatson mpc->mpc_ops->mpo_create_fragment = 586100979Srwatson mpe->mpe_function; 587100979Srwatson break; 588100979Srwatson case MAC_CREATE_IFNET: 589100979Srwatson mpc->mpc_ops->mpo_create_ifnet = 590100979Srwatson mpe->mpe_function; 591100979Srwatson break; 592100979Srwatson case MAC_CREATE_IPQ: 593100979Srwatson mpc->mpc_ops->mpo_create_ipq = 594100979Srwatson mpe->mpe_function; 595100979Srwatson break; 596100979Srwatson case MAC_CREATE_MBUF_FROM_MBUF: 597100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_mbuf = 598100979Srwatson mpe->mpe_function; 599100979Srwatson break; 600100979Srwatson case MAC_CREATE_MBUF_LINKLAYER: 601100979Srwatson mpc->mpc_ops->mpo_create_mbuf_linklayer = 602100979Srwatson mpe->mpe_function; 603100979Srwatson break; 604100979Srwatson case MAC_CREATE_MBUF_FROM_BPFDESC: 605100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_bpfdesc = 606100979Srwatson mpe->mpe_function; 607100979Srwatson break; 608100979Srwatson case MAC_CREATE_MBUF_FROM_IFNET: 609100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_ifnet = 610100979Srwatson mpe->mpe_function; 611100979Srwatson break; 612100979Srwatson case MAC_CREATE_MBUF_MULTICAST_ENCAP: 613100979Srwatson mpc->mpc_ops->mpo_create_mbuf_multicast_encap = 614100979Srwatson mpe->mpe_function; 615100979Srwatson break; 616100979Srwatson case MAC_CREATE_MBUF_NETLAYER: 617100979Srwatson mpc->mpc_ops->mpo_create_mbuf_netlayer = 618100979Srwatson mpe->mpe_function; 619100979Srwatson break; 620100979Srwatson case MAC_FRAGMENT_MATCH: 621100979Srwatson mpc->mpc_ops->mpo_fragment_match = 622100979Srwatson mpe->mpe_function; 623100979Srwatson break; 624100979Srwatson case MAC_RELABEL_IFNET: 625100979Srwatson mpc->mpc_ops->mpo_relabel_ifnet = 626100979Srwatson mpe->mpe_function; 627100979Srwatson break; 628100979Srwatson case MAC_UPDATE_IPQ: 629100979Srwatson mpc->mpc_ops->mpo_update_ipq = 630100979Srwatson mpe->mpe_function; 631100979Srwatson break; 632100979Srwatson case MAC_CREATE_CRED: 633100979Srwatson mpc->mpc_ops->mpo_create_cred = 634100979Srwatson mpe->mpe_function; 635100979Srwatson break; 636100979Srwatson case MAC_EXECVE_TRANSITION: 637100979Srwatson mpc->mpc_ops->mpo_execve_transition = 638100979Srwatson mpe->mpe_function; 639100979Srwatson break; 640100979Srwatson case MAC_EXECVE_WILL_TRANSITION: 641100979Srwatson mpc->mpc_ops->mpo_execve_will_transition = 642100979Srwatson mpe->mpe_function; 643100979Srwatson break; 644100979Srwatson case MAC_CREATE_PROC0: 645100979Srwatson mpc->mpc_ops->mpo_create_proc0 = mpe->mpe_function; 646100979Srwatson break; 647100979Srwatson case MAC_CREATE_PROC1: 648100979Srwatson mpc->mpc_ops->mpo_create_proc1 = mpe->mpe_function; 649100979Srwatson break; 650100979Srwatson case MAC_RELABEL_CRED: 651100979Srwatson mpc->mpc_ops->mpo_relabel_cred = 652100979Srwatson mpe->mpe_function; 653100979Srwatson break; 654100979Srwatson case MAC_CHECK_BPFDESC_RECEIVE: 655100979Srwatson mpc->mpc_ops->mpo_check_bpfdesc_receive = 656100979Srwatson mpe->mpe_function; 657100979Srwatson break; 658100979Srwatson case MAC_CHECK_CRED_RELABEL: 659100979Srwatson mpc->mpc_ops->mpo_check_cred_relabel = 660100979Srwatson mpe->mpe_function; 661100979Srwatson break; 662100979Srwatson case MAC_CHECK_CRED_VISIBLE: 663100979Srwatson mpc->mpc_ops->mpo_check_cred_visible = 664100979Srwatson mpe->mpe_function; 665100979Srwatson break; 666100979Srwatson case MAC_CHECK_IFNET_RELABEL: 667100979Srwatson mpc->mpc_ops->mpo_check_ifnet_relabel = 668100979Srwatson mpe->mpe_function; 669100979Srwatson break; 670100979Srwatson case MAC_CHECK_IFNET_TRANSMIT: 671100979Srwatson mpc->mpc_ops->mpo_check_ifnet_transmit = 672100979Srwatson mpe->mpe_function; 673100979Srwatson break; 674100979Srwatson case MAC_CHECK_MOUNT_STAT: 675100979Srwatson mpc->mpc_ops->mpo_check_mount_stat = 676100979Srwatson mpe->mpe_function; 677100979Srwatson break; 678100979Srwatson case MAC_CHECK_PIPE_IOCTL: 679100979Srwatson mpc->mpc_ops->mpo_check_pipe_ioctl = 680100979Srwatson mpe->mpe_function; 681100979Srwatson break; 682102115Srwatson case MAC_CHECK_PIPE_POLL: 683102115Srwatson mpc->mpc_ops->mpo_check_pipe_poll = 684100979Srwatson mpe->mpe_function; 685100979Srwatson break; 686102115Srwatson case MAC_CHECK_PIPE_READ: 687102115Srwatson mpc->mpc_ops->mpo_check_pipe_read = 688102115Srwatson mpe->mpe_function; 689102115Srwatson break; 690100979Srwatson case MAC_CHECK_PIPE_RELABEL: 691100979Srwatson mpc->mpc_ops->mpo_check_pipe_relabel = 692100979Srwatson mpe->mpe_function; 693100979Srwatson break; 694102115Srwatson case MAC_CHECK_PIPE_STAT: 695102115Srwatson mpc->mpc_ops->mpo_check_pipe_stat = 696102115Srwatson mpe->mpe_function; 697102115Srwatson break; 698102115Srwatson case MAC_CHECK_PIPE_WRITE: 699102115Srwatson mpc->mpc_ops->mpo_check_pipe_write = 700102115Srwatson mpe->mpe_function; 701102115Srwatson break; 702100979Srwatson case MAC_CHECK_PROC_DEBUG: 703100979Srwatson mpc->mpc_ops->mpo_check_proc_debug = 704100979Srwatson mpe->mpe_function; 705100979Srwatson break; 706100979Srwatson case MAC_CHECK_PROC_SCHED: 707100979Srwatson mpc->mpc_ops->mpo_check_proc_sched = 708100979Srwatson mpe->mpe_function; 709100979Srwatson break; 710100979Srwatson case MAC_CHECK_PROC_SIGNAL: 711100979Srwatson mpc->mpc_ops->mpo_check_proc_signal = 712100979Srwatson mpe->mpe_function; 713100979Srwatson break; 714100979Srwatson case MAC_CHECK_SOCKET_BIND: 715100979Srwatson mpc->mpc_ops->mpo_check_socket_bind = 716100979Srwatson mpe->mpe_function; 717100979Srwatson break; 718100979Srwatson case MAC_CHECK_SOCKET_CONNECT: 719100979Srwatson mpc->mpc_ops->mpo_check_socket_connect = 720100979Srwatson mpe->mpe_function; 721100979Srwatson break; 722101933Srwatson case MAC_CHECK_SOCKET_DELIVER: 723101933Srwatson mpc->mpc_ops->mpo_check_socket_deliver = 724101933Srwatson mpe->mpe_function; 725101933Srwatson break; 726100979Srwatson case MAC_CHECK_SOCKET_LISTEN: 727100979Srwatson mpc->mpc_ops->mpo_check_socket_listen = 728100979Srwatson mpe->mpe_function; 729100979Srwatson break; 730100979Srwatson case MAC_CHECK_SOCKET_RELABEL: 731100979Srwatson mpc->mpc_ops->mpo_check_socket_relabel = 732100979Srwatson mpe->mpe_function; 733100979Srwatson break; 734100979Srwatson case MAC_CHECK_SOCKET_VISIBLE: 735100979Srwatson mpc->mpc_ops->mpo_check_socket_visible = 736100979Srwatson mpe->mpe_function; 737100979Srwatson break; 738100979Srwatson case MAC_CHECK_VNODE_ACCESS: 739100979Srwatson mpc->mpc_ops->mpo_check_vnode_access = 740100979Srwatson mpe->mpe_function; 741100979Srwatson break; 742100979Srwatson case MAC_CHECK_VNODE_CHDIR: 743100979Srwatson mpc->mpc_ops->mpo_check_vnode_chdir = 744100979Srwatson mpe->mpe_function; 745100979Srwatson break; 746100979Srwatson case MAC_CHECK_VNODE_CHROOT: 747100979Srwatson mpc->mpc_ops->mpo_check_vnode_chroot = 748100979Srwatson mpe->mpe_function; 749100979Srwatson break; 750100979Srwatson case MAC_CHECK_VNODE_CREATE: 751100979Srwatson mpc->mpc_ops->mpo_check_vnode_create = 752100979Srwatson mpe->mpe_function; 753100979Srwatson break; 754100979Srwatson case MAC_CHECK_VNODE_DELETE: 755100979Srwatson mpc->mpc_ops->mpo_check_vnode_delete = 756100979Srwatson mpe->mpe_function; 757100979Srwatson break; 758100979Srwatson case MAC_CHECK_VNODE_DELETEACL: 759100979Srwatson mpc->mpc_ops->mpo_check_vnode_deleteacl = 760100979Srwatson mpe->mpe_function; 761100979Srwatson break; 762100979Srwatson case MAC_CHECK_VNODE_EXEC: 763100979Srwatson mpc->mpc_ops->mpo_check_vnode_exec = 764100979Srwatson mpe->mpe_function; 765100979Srwatson break; 766100979Srwatson case MAC_CHECK_VNODE_GETACL: 767100979Srwatson mpc->mpc_ops->mpo_check_vnode_getacl = 768100979Srwatson mpe->mpe_function; 769100979Srwatson break; 770100979Srwatson case MAC_CHECK_VNODE_GETEXTATTR: 771100979Srwatson mpc->mpc_ops->mpo_check_vnode_getextattr = 772100979Srwatson mpe->mpe_function; 773100979Srwatson break; 774100979Srwatson case MAC_CHECK_VNODE_LOOKUP: 775100979Srwatson mpc->mpc_ops->mpo_check_vnode_lookup = 776100979Srwatson mpe->mpe_function; 777100979Srwatson break; 778100979Srwatson case MAC_CHECK_VNODE_MMAP_PERMS: 779100979Srwatson mpc->mpc_ops->mpo_check_vnode_mmap_perms = 780100979Srwatson mpe->mpe_function; 781100979Srwatson break; 782100979Srwatson case MAC_CHECK_VNODE_OPEN: 783100979Srwatson mpc->mpc_ops->mpo_check_vnode_open = 784100979Srwatson mpe->mpe_function; 785100979Srwatson break; 786102112Srwatson case MAC_CHECK_VNODE_POLL: 787102112Srwatson mpc->mpc_ops->mpo_check_vnode_poll = 788102112Srwatson mpe->mpe_function; 789102112Srwatson break; 790102112Srwatson case MAC_CHECK_VNODE_READ: 791102112Srwatson mpc->mpc_ops->mpo_check_vnode_read = 792102112Srwatson mpe->mpe_function; 793102112Srwatson break; 794100979Srwatson case MAC_CHECK_VNODE_READDIR: 795100979Srwatson mpc->mpc_ops->mpo_check_vnode_readdir = 796100979Srwatson mpe->mpe_function; 797100979Srwatson break; 798100979Srwatson case MAC_CHECK_VNODE_READLINK: 799100979Srwatson mpc->mpc_ops->mpo_check_vnode_readlink = 800100979Srwatson mpe->mpe_function; 801100979Srwatson break; 802100979Srwatson case MAC_CHECK_VNODE_RELABEL: 803100979Srwatson mpc->mpc_ops->mpo_check_vnode_relabel = 804100979Srwatson mpe->mpe_function; 805100979Srwatson break; 806100979Srwatson case MAC_CHECK_VNODE_RENAME_FROM: 807100979Srwatson mpc->mpc_ops->mpo_check_vnode_rename_from = 808100979Srwatson mpe->mpe_function; 809100979Srwatson break; 810100979Srwatson case MAC_CHECK_VNODE_RENAME_TO: 811100979Srwatson mpc->mpc_ops->mpo_check_vnode_rename_to = 812100979Srwatson mpe->mpe_function; 813100979Srwatson break; 814100979Srwatson case MAC_CHECK_VNODE_REVOKE: 815100979Srwatson mpc->mpc_ops->mpo_check_vnode_revoke = 816100979Srwatson mpe->mpe_function; 817100979Srwatson break; 818100979Srwatson case MAC_CHECK_VNODE_SETACL: 819100979Srwatson mpc->mpc_ops->mpo_check_vnode_setacl = 820100979Srwatson mpe->mpe_function; 821100979Srwatson break; 822100979Srwatson case MAC_CHECK_VNODE_SETEXTATTR: 823100979Srwatson mpc->mpc_ops->mpo_check_vnode_setextattr = 824100979Srwatson mpe->mpe_function; 825100979Srwatson break; 826100979Srwatson case MAC_CHECK_VNODE_SETFLAGS: 827100979Srwatson mpc->mpc_ops->mpo_check_vnode_setflags = 828100979Srwatson mpe->mpe_function; 829100979Srwatson break; 830100979Srwatson case MAC_CHECK_VNODE_SETMODE: 831100979Srwatson mpc->mpc_ops->mpo_check_vnode_setmode = 832100979Srwatson mpe->mpe_function; 833100979Srwatson break; 834100979Srwatson case MAC_CHECK_VNODE_SETOWNER: 835100979Srwatson mpc->mpc_ops->mpo_check_vnode_setowner = 836100979Srwatson mpe->mpe_function; 837100979Srwatson break; 838100979Srwatson case MAC_CHECK_VNODE_SETUTIMES: 839100979Srwatson mpc->mpc_ops->mpo_check_vnode_setutimes = 840100979Srwatson mpe->mpe_function; 841100979Srwatson break; 842100979Srwatson case MAC_CHECK_VNODE_STAT: 843100979Srwatson mpc->mpc_ops->mpo_check_vnode_stat = 844100979Srwatson mpe->mpe_function; 845100979Srwatson break; 846102112Srwatson case MAC_CHECK_VNODE_WRITE: 847102112Srwatson mpc->mpc_ops->mpo_check_vnode_write = 848102112Srwatson mpe->mpe_function; 849102112Srwatson break; 850100979Srwatson/* 851100979Srwatson default: 852100979Srwatson printf("MAC policy `%s': unknown operation %d\n", 853100979Srwatson mpc->mpc_name, mpe->mpe_constant); 854100979Srwatson return (EINVAL); 855100979Srwatson*/ 856100979Srwatson } 857100979Srwatson } 858100979Srwatson MAC_POLICY_LIST_LOCK(); 859100979Srwatson if (mac_policy_list_busy > 0) { 860100979Srwatson MAC_POLICY_LIST_UNLOCK(); 861100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 862100979Srwatson mpc->mpc_ops = NULL; 863100979Srwatson return (EBUSY); 864100979Srwatson } 865100979Srwatson LIST_FOREACH(tmpc, &mac_policy_list, mpc_list) { 866100979Srwatson if (strcmp(tmpc->mpc_name, mpc->mpc_name) == 0) { 867100979Srwatson MAC_POLICY_LIST_UNLOCK(); 868100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 869100979Srwatson mpc->mpc_ops = NULL; 870100979Srwatson return (EEXIST); 871100979Srwatson } 872100979Srwatson } 873100979Srwatson if (mpc->mpc_field_off != NULL) { 874100979Srwatson slot = ffs(mac_policy_offsets_free); 875100979Srwatson if (slot == 0) { 876100979Srwatson MAC_POLICY_LIST_UNLOCK(); 877100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 878100979Srwatson mpc->mpc_ops = NULL; 879100979Srwatson return (ENOMEM); 880100979Srwatson } 881100979Srwatson slot--; 882100979Srwatson mac_policy_offsets_free &= ~(1 << slot); 883100979Srwatson *mpc->mpc_field_off = slot; 884100979Srwatson } 885100979Srwatson mpc->mpc_runtime_flags |= MPC_RUNTIME_FLAG_REGISTERED; 886100979Srwatson LIST_INSERT_HEAD(&mac_policy_list, mpc, mpc_list); 887100979Srwatson 888100979Srwatson /* Per-policy initialization. */ 889100979Srwatson if (mpc->mpc_ops->mpo_init != NULL) 890100979Srwatson (*(mpc->mpc_ops->mpo_init))(mpc); 891100979Srwatson MAC_POLICY_LIST_UNLOCK(); 892100979Srwatson 893100979Srwatson printf("Security policy loaded: %s (%s)\n", mpc->mpc_fullname, 894100979Srwatson mpc->mpc_name); 895100979Srwatson 896100979Srwatson return (0); 897100979Srwatson} 898100979Srwatson 899100979Srwatsonstatic int 900100979Srwatsonmac_policy_unregister(struct mac_policy_conf *mpc) 901100979Srwatson{ 902100979Srwatson 903100979Srwatson#if 0 904100979Srwatson /* 905100979Srwatson * Don't allow unloading modules with private data. 906100979Srwatson */ 907100979Srwatson if (mpc->mpc_field_off != NULL) 908100979Srwatson return (EBUSY); 909100979Srwatson#endif 910100979Srwatson if ((mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_UNLOADOK) == 0) 911100979Srwatson return (EBUSY); 912100979Srwatson MAC_POLICY_LIST_LOCK(); 913100979Srwatson if (mac_policy_list_busy > 0) { 914100979Srwatson MAC_POLICY_LIST_UNLOCK(); 915100979Srwatson return (EBUSY); 916100979Srwatson } 917100979Srwatson if (mpc->mpc_ops->mpo_destroy != NULL) 918100979Srwatson (*(mpc->mpc_ops->mpo_destroy))(mpc); 919100979Srwatson 920100979Srwatson LIST_REMOVE(mpc, mpc_list); 921100979Srwatson MAC_POLICY_LIST_UNLOCK(); 922100979Srwatson 923100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 924100979Srwatson mpc->mpc_ops = NULL; 925100979Srwatson 926100979Srwatson printf("Security policy unload: %s (%s)\n", mpc->mpc_fullname, 927100979Srwatson mpc->mpc_name); 928100979Srwatson 929100979Srwatson return (0); 930100979Srwatson} 931100979Srwatson 932100979Srwatson/* 933100979Srwatson * Define an error value precedence, and given two arguments, selects the 934100979Srwatson * value with the higher precedence. 935100979Srwatson */ 936100979Srwatsonstatic int 937100979Srwatsonerror_select(int error1, int error2) 938100979Srwatson{ 939100979Srwatson 940100979Srwatson /* Certain decision-making errors take top priority. */ 941100979Srwatson if (error1 == EDEADLK || error2 == EDEADLK) 942100979Srwatson return (EDEADLK); 943100979Srwatson 944100979Srwatson /* Invalid arguments should be reported where possible. */ 945100979Srwatson if (error1 == EINVAL || error2 == EINVAL) 946100979Srwatson return (EINVAL); 947100979Srwatson 948100979Srwatson /* Precedence goes to "visibility", with both process and file. */ 949100979Srwatson if (error1 == ESRCH || error2 == ESRCH) 950100979Srwatson return (ESRCH); 951100979Srwatson 952100979Srwatson if (error1 == ENOENT || error2 == ENOENT) 953100979Srwatson return (ENOENT); 954100979Srwatson 955100979Srwatson /* Precedence goes to DAC/MAC protections. */ 956100979Srwatson if (error1 == EACCES || error2 == EACCES) 957100979Srwatson return (EACCES); 958100979Srwatson 959100979Srwatson /* Precedence goes to privilege. */ 960100979Srwatson if (error1 == EPERM || error2 == EPERM) 961100979Srwatson return (EPERM); 962100979Srwatson 963100979Srwatson /* Precedence goes to error over success; otherwise, arbitrary. */ 964100979Srwatson if (error1 != 0) 965100979Srwatson return (error1); 966100979Srwatson return (error2); 967100979Srwatson} 968100979Srwatson 969100979Srwatsonvoid 970100979Srwatsonmac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp) 971100979Srwatson{ 972100979Srwatson 973100979Srwatson MAC_PERFORM(update_devfsdirent, de, &de->de_label, vp, &vp->v_label); 974100979Srwatson} 975100979Srwatson 976100979Srwatsonvoid 977100979Srwatsonmac_update_procfsvnode(struct vnode *vp, struct ucred *cred) 978100979Srwatson{ 979100979Srwatson 980100979Srwatson MAC_PERFORM(update_procfsvnode, vp, &vp->v_label, cred); 981100979Srwatson} 982100979Srwatson 983100979Srwatson/* 984100979Srwatson * Support callout for policies that manage their own externalization 985100979Srwatson * using extended attributes. 986100979Srwatson */ 987100979Srwatsonstatic int 988100979Srwatsonmac_update_vnode_from_extattr(struct vnode *vp, struct mount *mp) 989100979Srwatson{ 990100979Srwatson int error; 991100979Srwatson 992100979Srwatson MAC_CHECK(update_vnode_from_extattr, vp, &vp->v_label, mp, 993100979Srwatson &mp->mnt_fslabel); 994100979Srwatson 995100979Srwatson return (error); 996100979Srwatson} 997100979Srwatson 998100979Srwatson/* 999100979Srwatson * Given an externalized mac label, internalize it and stamp it on a 1000100979Srwatson * vnode. 1001100979Srwatson */ 1002100979Srwatsonstatic int 1003100979Srwatsonmac_update_vnode_from_externalized(struct vnode *vp, struct mac *extmac) 1004100979Srwatson{ 1005100979Srwatson int error; 1006100979Srwatson 1007100979Srwatson MAC_CHECK(update_vnode_from_externalized, vp, &vp->v_label, extmac); 1008100979Srwatson 1009100979Srwatson return (error); 1010100979Srwatson} 1011100979Srwatson 1012100979Srwatson/* 1013100979Srwatson * Call out to individual policies to update the label in a vnode from 1014100979Srwatson * the mountpoint. 1015100979Srwatson */ 1016100979Srwatsonvoid 1017100979Srwatsonmac_update_vnode_from_mount(struct vnode *vp, struct mount *mp) 1018100979Srwatson{ 1019100979Srwatson 1020100979Srwatson MAC_PERFORM(update_vnode_from_mount, vp, &vp->v_label, mp, 1021100979Srwatson &mp->mnt_fslabel); 1022100979Srwatson 1023101308Sjeff ASSERT_VOP_LOCKED(vp, "mac_update_vnode_from_mount"); 1024100979Srwatson if (mac_cache_fslabel_in_vnode) 1025101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1026100979Srwatson} 1027100979Srwatson 1028100979Srwatson/* 1029100979Srwatson * Implementation of VOP_REFRESHLABEL() that relies on extended attributes 1030100979Srwatson * to store label data. Can be referenced by filesystems supporting 1031100979Srwatson * extended attributes. 1032100979Srwatson */ 1033100979Srwatsonint 1034100979Srwatsonvop_stdrefreshlabel_ea(struct vop_refreshlabel_args *ap) 1035100979Srwatson{ 1036100979Srwatson struct vnode *vp = ap->a_vp; 1037100979Srwatson struct mac extmac; 1038100979Srwatson int buflen, error; 1039100979Srwatson 1040100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdrefreshlabel_ea"); 1041100979Srwatson 1042100979Srwatson /* 1043100979Srwatson * Call out to external policies first. Order doesn't really 1044100979Srwatson * matter, as long as failure of one assures failure of all. 1045100979Srwatson */ 1046100979Srwatson error = mac_update_vnode_from_extattr(vp, vp->v_mount); 1047100979Srwatson if (error) 1048100979Srwatson return (error); 1049100979Srwatson 1050100979Srwatson buflen = sizeof(extmac); 1051100979Srwatson error = vn_extattr_get(vp, IO_NODELOCKED, 1052100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, &buflen, 1053100979Srwatson (char *)&extmac, curthread); 1054100979Srwatson switch (error) { 1055100979Srwatson case 0: 1056100979Srwatson /* Got it */ 1057100979Srwatson break; 1058100979Srwatson 1059100979Srwatson case ENOATTR: 1060100979Srwatson /* 1061100979Srwatson * Use the label from the mount point. 1062100979Srwatson */ 1063100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1064100979Srwatson return (0); 1065100979Srwatson 1066100979Srwatson case EOPNOTSUPP: 1067100979Srwatson default: 1068100979Srwatson /* Fail horribly. */ 1069100979Srwatson return (error); 1070100979Srwatson } 1071100979Srwatson 1072100979Srwatson if (buflen != sizeof(extmac)) 1073100979Srwatson error = EPERM; /* Fail very closed. */ 1074100979Srwatson if (error == 0) 1075100979Srwatson error = mac_update_vnode_from_externalized(vp, &extmac); 1076100979Srwatson if (error == 0) 1077101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1078100979Srwatson else { 1079100979Srwatson struct vattr va; 1080100979Srwatson 1081100979Srwatson printf("Corrupted label on %s", 1082100979Srwatson vp->v_mount->mnt_stat.f_mntonname); 1083100979Srwatson if (VOP_GETATTR(vp, &va, curthread->td_ucred, curthread) == 0) 1084100979Srwatson printf(" inum %ld", va.va_fileid); 1085104268Srwatson#ifdef MAC_DEBUG 1086100979Srwatson if (mac_debug_label_fallback) { 1087100979Srwatson printf(", falling back.\n"); 1088100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1089100979Srwatson error = 0; 1090100979Srwatson } else { 1091104268Srwatson#endif 1092100979Srwatson printf(".\n"); 1093100979Srwatson error = EPERM; 1094104268Srwatson#ifdef MAC_DEBUG 1095100979Srwatson } 1096104268Srwatson#endif 1097100979Srwatson } 1098100979Srwatson 1099100979Srwatson return (error); 1100100979Srwatson} 1101100979Srwatson 1102100979Srwatson/* 1103100979Srwatson * Make sure the vnode label is up-to-date. If EOPNOTSUPP, then we handle 1104100979Srwatson * the labeling activity outselves. Filesystems should be careful not 1105100979Srwatson * to change their minds regarding whether they support vop_refreshlabel() 1106100979Srwatson * for a vnode or not. Don't cache the vnode here, allow the file 1107100979Srwatson * system code to determine if it's safe to cache. If we update from 1108100979Srwatson * the mount, don't cache since a change to the mount label should affect 1109100979Srwatson * all vnodes. 1110100979Srwatson */ 1111100979Srwatsonstatic int 1112100979Srwatsonvn_refreshlabel(struct vnode *vp, struct ucred *cred) 1113100979Srwatson{ 1114100979Srwatson int error; 1115100979Srwatson 1116100979Srwatson ASSERT_VOP_LOCKED(vp, "vn_refreshlabel"); 1117100979Srwatson 1118100979Srwatson if (vp->v_mount == NULL) { 1119100979Srwatson/* 1120100979Srwatson Eventually, we probably want to special-case refreshing 1121100979Srwatson of deadfs vnodes, and if there's a lock-free race somewhere, 1122100979Srwatson that case might be handled here. 1123100979Srwatson 1124100979Srwatson mac_update_vnode_deadfs(vp); 1125100979Srwatson return (0); 1126100979Srwatson */ 1127100979Srwatson /* printf("vn_refreshlabel: null v_mount\n"); */ 1128103314Snjl if (vp->v_type != VNON) 1129100979Srwatson printf( 1130103314Snjl "vn_refreshlabel: null v_mount with non-VNON\n"); 1131100979Srwatson return (EBADF); 1132100979Srwatson } 1133100979Srwatson 1134101308Sjeff if (vp->v_vflag & VV_CACHEDLABEL) { 1135100979Srwatson mac_vnode_label_cache_hits++; 1136100979Srwatson return (0); 1137100979Srwatson } else 1138100979Srwatson mac_vnode_label_cache_misses++; 1139100979Srwatson 1140100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1141100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1142100979Srwatson return (0); 1143100979Srwatson } 1144100979Srwatson 1145100979Srwatson error = VOP_REFRESHLABEL(vp, cred, curthread); 1146100979Srwatson switch (error) { 1147100979Srwatson case EOPNOTSUPP: 1148100979Srwatson /* 1149100979Srwatson * If labels are not supported on this vnode, fall back to 1150100979Srwatson * the label in the mount and propagate it to the vnode. 1151100979Srwatson * There should probably be some sort of policy/flag/decision 1152100979Srwatson * about doing this. 1153100979Srwatson */ 1154100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1155100979Srwatson error = 0; 1156100979Srwatson default: 1157100979Srwatson return (error); 1158100979Srwatson } 1159100979Srwatson} 1160100979Srwatson 1161100979Srwatson/* 1162100979Srwatson * Helper function for file systems using the vop_std*_ea() calls. This 1163100979Srwatson * function must be called after EA service is available for the vnode, 1164100979Srwatson * but before it's hooked up to the namespace so that the node persists 1165100979Srwatson * if there's a crash, or before it can be accessed. On successful 1166100979Srwatson * commit of the label to disk (etc), do cache the label. 1167100979Srwatson */ 1168100979Srwatsonint 1169100979Srwatsonvop_stdcreatevnode_ea(struct vnode *dvp, struct vnode *tvp, struct ucred *cred) 1170100979Srwatson{ 1171100979Srwatson struct mac extmac; 1172100979Srwatson int error; 1173100979Srwatson 1174101308Sjeff ASSERT_VOP_LOCKED(tvp, "vop_stdcreatevnode_ea"); 1175100979Srwatson if ((dvp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1176100979Srwatson mac_update_vnode_from_mount(tvp, tvp->v_mount); 1177100979Srwatson } else { 1178100979Srwatson error = vn_refreshlabel(dvp, cred); 1179100979Srwatson if (error) 1180100979Srwatson return (error); 1181100979Srwatson 1182100979Srwatson /* 1183100979Srwatson * Stick the label in the vnode. Then try to write to 1184100979Srwatson * disk. If we fail, return a failure to abort the 1185100979Srwatson * create operation. Really, this failure shouldn't 1186100979Srwatson * happen except in fairly unusual circumstances (out 1187100979Srwatson * of disk, etc). 1188100979Srwatson */ 1189100979Srwatson mac_create_vnode(cred, dvp, tvp); 1190100979Srwatson 1191100979Srwatson error = mac_stdcreatevnode_ea(tvp); 1192100979Srwatson if (error) 1193100979Srwatson return (error); 1194100979Srwatson 1195100979Srwatson /* 1196100979Srwatson * XXX: Eventually this will go away and all policies will 1197100979Srwatson * directly manage their extended attributes. 1198100979Srwatson */ 1199100979Srwatson error = mac_externalize(&tvp->v_label, &extmac); 1200100979Srwatson if (error) 1201100979Srwatson return (error); 1202100979Srwatson 1203100979Srwatson error = vn_extattr_set(tvp, IO_NODELOCKED, 1204100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 1205100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 1206100979Srwatson if (error == 0) 1207101308Sjeff tvp->v_vflag |= VV_CACHEDLABEL; 1208100979Srwatson else { 1209100979Srwatson#if 0 1210100979Srwatson /* 1211100979Srwatson * In theory, we could have fall-back behavior here. 1212100979Srwatson * It would probably be incorrect. 1213100979Srwatson */ 1214100979Srwatson#endif 1215100979Srwatson return (error); 1216100979Srwatson } 1217100979Srwatson } 1218100979Srwatson 1219100979Srwatson return (0); 1220100979Srwatson} 1221100979Srwatson 1222100979Srwatsonvoid 1223100979Srwatsonmac_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp) 1224100979Srwatson{ 1225100979Srwatson int error; 1226100979Srwatson 1227100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_execve_transition"); 1228100979Srwatson 1229100979Srwatson error = vn_refreshlabel(vp, old); 1230100979Srwatson if (error) { 1231100979Srwatson printf("mac_execve_transition: vn_refreshlabel returned %d\n", 1232100979Srwatson error); 1233100979Srwatson printf("mac_execve_transition: using old vnode label\n"); 1234100979Srwatson } 1235100979Srwatson 1236100979Srwatson MAC_PERFORM(execve_transition, old, new, vp, &vp->v_label); 1237100979Srwatson} 1238100979Srwatson 1239100979Srwatsonint 1240100979Srwatsonmac_execve_will_transition(struct ucred *old, struct vnode *vp) 1241100979Srwatson{ 1242100979Srwatson int error, result; 1243100979Srwatson 1244100979Srwatson error = vn_refreshlabel(vp, old); 1245100979Srwatson if (error) 1246100979Srwatson return (error); 1247100979Srwatson 1248100979Srwatson result = 0; 1249100979Srwatson MAC_BOOLEAN(execve_will_transition, ||, old, vp, &vp->v_label); 1250100979Srwatson 1251100979Srwatson return (result); 1252100979Srwatson} 1253100979Srwatson 1254100979Srwatsonstatic void 1255100979Srwatsonmac_init_label(struct label *label) 1256100979Srwatson{ 1257100979Srwatson 1258100979Srwatson bzero(label, sizeof(*label)); 1259100979Srwatson label->l_flags = MAC_FLAG_INITIALIZED; 1260100979Srwatson} 1261100979Srwatson 1262100979Srwatsonstatic void 1263100979Srwatsonmac_init_structmac(struct mac *mac) 1264100979Srwatson{ 1265100979Srwatson 1266100979Srwatson bzero(mac, sizeof(*mac)); 1267100979Srwatson mac->m_macflags = MAC_FLAG_INITIALIZED; 1268100979Srwatson} 1269100979Srwatson 1270100979Srwatsonstatic void 1271100979Srwatsonmac_destroy_label(struct label *label) 1272100979Srwatson{ 1273100979Srwatson 1274100979Srwatson KASSERT(label->l_flags & MAC_FLAG_INITIALIZED, 1275100979Srwatson ("destroying uninitialized label")); 1276100979Srwatson 1277100979Srwatson bzero(label, sizeof(*label)); 1278100979Srwatson /* implicit: label->l_flags &= ~MAC_FLAG_INITIALIZED; */ 1279100979Srwatson} 1280100979Srwatson 1281100979Srwatsonint 1282100979Srwatsonmac_init_mbuf(struct mbuf *m, int how) 1283100979Srwatson{ 1284100979Srwatson KASSERT(m->m_flags & M_PKTHDR, ("mac_init_mbuf on non-header mbuf")); 1285100979Srwatson 1286100979Srwatson /* "how" is one of M_(TRY|DONT)WAIT */ 1287100979Srwatson mac_init_label(&m->m_pkthdr.label); 1288100979Srwatson MAC_PERFORM(init_mbuf, m, how, &m->m_pkthdr.label); 1289101988Srwatson#ifdef MAC_DEBUG 1290100979Srwatson atomic_add_int(&nmacmbufs, 1); 1291101988Srwatson#endif 1292100979Srwatson return (0); 1293100979Srwatson} 1294100979Srwatson 1295100979Srwatsonvoid 1296100979Srwatsonmac_destroy_mbuf(struct mbuf *m) 1297100979Srwatson{ 1298100979Srwatson 1299100979Srwatson MAC_PERFORM(destroy_mbuf, m, &m->m_pkthdr.label); 1300100979Srwatson mac_destroy_label(&m->m_pkthdr.label); 1301101988Srwatson#ifdef MAC_DEBUG 1302100979Srwatson atomic_subtract_int(&nmacmbufs, 1); 1303101988Srwatson#endif 1304100979Srwatson} 1305100979Srwatson 1306100979Srwatsonvoid 1307100979Srwatsonmac_init_cred(struct ucred *cr) 1308100979Srwatson{ 1309100979Srwatson 1310100979Srwatson mac_init_label(&cr->cr_label); 1311100979Srwatson MAC_PERFORM(init_cred, cr, &cr->cr_label); 1312101988Srwatson#ifdef MAC_DEBUG 1313100979Srwatson atomic_add_int(&nmaccreds, 1); 1314101988Srwatson#endif 1315100979Srwatson} 1316100979Srwatson 1317100979Srwatsonvoid 1318100979Srwatsonmac_destroy_cred(struct ucred *cr) 1319100979Srwatson{ 1320100979Srwatson 1321100979Srwatson MAC_PERFORM(destroy_cred, cr, &cr->cr_label); 1322100979Srwatson mac_destroy_label(&cr->cr_label); 1323101988Srwatson#ifdef MAC_DEBUG 1324100979Srwatson atomic_subtract_int(&nmaccreds, 1); 1325101988Srwatson#endif 1326100979Srwatson} 1327100979Srwatson 1328100979Srwatsonvoid 1329100979Srwatsonmac_init_ifnet(struct ifnet *ifp) 1330100979Srwatson{ 1331100979Srwatson 1332100979Srwatson mac_init_label(&ifp->if_label); 1333100979Srwatson MAC_PERFORM(init_ifnet, ifp, &ifp->if_label); 1334101988Srwatson#ifdef MAC_DEBUG 1335100979Srwatson atomic_add_int(&nmacifnets, 1); 1336101988Srwatson#endif 1337100979Srwatson} 1338100979Srwatson 1339100979Srwatsonvoid 1340100979Srwatsonmac_destroy_ifnet(struct ifnet *ifp) 1341100979Srwatson{ 1342100979Srwatson 1343100979Srwatson MAC_PERFORM(destroy_ifnet, ifp, &ifp->if_label); 1344100979Srwatson mac_destroy_label(&ifp->if_label); 1345101988Srwatson#ifdef MAC_DEBUG 1346100979Srwatson atomic_subtract_int(&nmacifnets, 1); 1347101988Srwatson#endif 1348100979Srwatson} 1349100979Srwatson 1350100979Srwatsonvoid 1351100979Srwatsonmac_init_ipq(struct ipq *ipq) 1352100979Srwatson{ 1353100979Srwatson 1354100979Srwatson mac_init_label(&ipq->ipq_label); 1355100979Srwatson MAC_PERFORM(init_ipq, ipq, &ipq->ipq_label); 1356101988Srwatson#ifdef MAC_DEBUG 1357100979Srwatson atomic_add_int(&nmacipqs, 1); 1358101988Srwatson#endif 1359100979Srwatson} 1360100979Srwatson 1361100979Srwatsonvoid 1362100979Srwatsonmac_destroy_ipq(struct ipq *ipq) 1363100979Srwatson{ 1364100979Srwatson 1365100979Srwatson MAC_PERFORM(destroy_ipq, ipq, &ipq->ipq_label); 1366100979Srwatson mac_destroy_label(&ipq->ipq_label); 1367101988Srwatson#ifdef MAC_DEBUG 1368100979Srwatson atomic_subtract_int(&nmacipqs, 1); 1369101988Srwatson#endif 1370100979Srwatson} 1371100979Srwatson 1372100979Srwatsonvoid 1373100979Srwatsonmac_init_socket(struct socket *socket) 1374100979Srwatson{ 1375100979Srwatson 1376100979Srwatson mac_init_label(&socket->so_label); 1377100979Srwatson mac_init_label(&socket->so_peerlabel); 1378100979Srwatson MAC_PERFORM(init_socket, socket, &socket->so_label, 1379100979Srwatson &socket->so_peerlabel); 1380101988Srwatson#ifdef MAC_DEBUG 1381100979Srwatson atomic_add_int(&nmacsockets, 1); 1382101988Srwatson#endif 1383100979Srwatson} 1384100979Srwatson 1385100979Srwatsonvoid 1386100979Srwatsonmac_destroy_socket(struct socket *socket) 1387100979Srwatson{ 1388100979Srwatson 1389100979Srwatson MAC_PERFORM(destroy_socket, socket, &socket->so_label, 1390100979Srwatson &socket->so_peerlabel); 1391100979Srwatson mac_destroy_label(&socket->so_label); 1392100979Srwatson mac_destroy_label(&socket->so_peerlabel); 1393101988Srwatson#ifdef MAC_DEBUG 1394100979Srwatson atomic_subtract_int(&nmacsockets, 1); 1395101988Srwatson#endif 1396100979Srwatson} 1397100979Srwatson 1398100979Srwatsonvoid 1399100979Srwatsonmac_init_pipe(struct pipe *pipe) 1400100979Srwatson{ 1401100979Srwatson struct label *label; 1402100979Srwatson 1403100979Srwatson label = malloc(sizeof(struct label), M_MACPIPELABEL, M_ZERO|M_WAITOK); 1404100979Srwatson mac_init_label(label); 1405100979Srwatson pipe->pipe_label = label; 1406100979Srwatson pipe->pipe_peer->pipe_label = label; 1407100979Srwatson MAC_PERFORM(init_pipe, pipe, pipe->pipe_label); 1408101988Srwatson#ifdef MAC_DEBUG 1409100979Srwatson atomic_add_int(&nmacpipes, 1); 1410101988Srwatson#endif 1411100979Srwatson} 1412100979Srwatson 1413100979Srwatsonvoid 1414100979Srwatsonmac_destroy_pipe(struct pipe *pipe) 1415100979Srwatson{ 1416100979Srwatson 1417100979Srwatson MAC_PERFORM(destroy_pipe, pipe, pipe->pipe_label); 1418100979Srwatson mac_destroy_label(pipe->pipe_label); 1419100979Srwatson free(pipe->pipe_label, M_MACPIPELABEL); 1420101988Srwatson#ifdef MAC_DEBUG 1421100979Srwatson atomic_subtract_int(&nmacpipes, 1); 1422101988Srwatson#endif 1423100979Srwatson} 1424100979Srwatson 1425100979Srwatsonvoid 1426100979Srwatsonmac_init_bpfdesc(struct bpf_d *bpf_d) 1427100979Srwatson{ 1428100979Srwatson 1429100979Srwatson mac_init_label(&bpf_d->bd_label); 1430100979Srwatson MAC_PERFORM(init_bpfdesc, bpf_d, &bpf_d->bd_label); 1431101988Srwatson#ifdef MAC_DEBUG 1432100979Srwatson atomic_add_int(&nmacbpfdescs, 1); 1433101988Srwatson#endif 1434100979Srwatson} 1435100979Srwatson 1436100979Srwatsonvoid 1437100979Srwatsonmac_destroy_bpfdesc(struct bpf_d *bpf_d) 1438100979Srwatson{ 1439100979Srwatson 1440100979Srwatson MAC_PERFORM(destroy_bpfdesc, bpf_d, &bpf_d->bd_label); 1441100979Srwatson mac_destroy_label(&bpf_d->bd_label); 1442101988Srwatson#ifdef MAC_DEBUG 1443100979Srwatson atomic_subtract_int(&nmacbpfdescs, 1); 1444101988Srwatson#endif 1445100979Srwatson} 1446100979Srwatson 1447100979Srwatsonvoid 1448100979Srwatsonmac_init_mount(struct mount *mp) 1449100979Srwatson{ 1450100979Srwatson 1451100979Srwatson mac_init_label(&mp->mnt_mntlabel); 1452100979Srwatson mac_init_label(&mp->mnt_fslabel); 1453100979Srwatson MAC_PERFORM(init_mount, mp, &mp->mnt_mntlabel, &mp->mnt_fslabel); 1454101988Srwatson#ifdef MAC_DEBUG 1455100979Srwatson atomic_add_int(&nmacmounts, 1); 1456101988Srwatson#endif 1457100979Srwatson} 1458100979Srwatson 1459100979Srwatsonvoid 1460100979Srwatsonmac_destroy_mount(struct mount *mp) 1461100979Srwatson{ 1462100979Srwatson 1463100979Srwatson MAC_PERFORM(destroy_mount, mp, &mp->mnt_mntlabel, &mp->mnt_fslabel); 1464100979Srwatson mac_destroy_label(&mp->mnt_fslabel); 1465100979Srwatson mac_destroy_label(&mp->mnt_mntlabel); 1466101988Srwatson#ifdef MAC_DEBUG 1467100979Srwatson atomic_subtract_int(&nmacmounts, 1); 1468101988Srwatson#endif 1469100979Srwatson} 1470100979Srwatson 1471100979Srwatsonstatic void 1472100979Srwatsonmac_init_temp(struct label *label) 1473100979Srwatson{ 1474100979Srwatson 1475100979Srwatson mac_init_label(label); 1476100979Srwatson MAC_PERFORM(init_temp, label); 1477101988Srwatson#ifdef MAC_DEBUG 1478100979Srwatson atomic_add_int(&nmactemp, 1); 1479101988Srwatson#endif 1480100979Srwatson} 1481100979Srwatson 1482100979Srwatsonstatic void 1483100979Srwatsonmac_destroy_temp(struct label *label) 1484100979Srwatson{ 1485100979Srwatson 1486100979Srwatson MAC_PERFORM(destroy_temp, label); 1487100979Srwatson mac_destroy_label(label); 1488101988Srwatson#ifdef MAC_DEBUG 1489100979Srwatson atomic_subtract_int(&nmactemp, 1); 1490101988Srwatson#endif 1491100979Srwatson} 1492100979Srwatson 1493100979Srwatsonvoid 1494100979Srwatsonmac_init_vnode(struct vnode *vp) 1495100979Srwatson{ 1496100979Srwatson 1497100979Srwatson mac_init_label(&vp->v_label); 1498100979Srwatson MAC_PERFORM(init_vnode, vp, &vp->v_label); 1499101988Srwatson#ifdef MAC_DEBUG 1500100979Srwatson atomic_add_int(&nmacvnodes, 1); 1501101988Srwatson#endif 1502100979Srwatson} 1503100979Srwatson 1504100979Srwatsonvoid 1505100979Srwatsonmac_destroy_vnode(struct vnode *vp) 1506100979Srwatson{ 1507100979Srwatson 1508100979Srwatson MAC_PERFORM(destroy_vnode, vp, &vp->v_label); 1509100979Srwatson mac_destroy_label(&vp->v_label); 1510101988Srwatson#ifdef MAC_DEBUG 1511100979Srwatson atomic_subtract_int(&nmacvnodes, 1); 1512101988Srwatson#endif 1513100979Srwatson} 1514100979Srwatson 1515100979Srwatsonvoid 1516100979Srwatsonmac_init_devfsdirent(struct devfs_dirent *de) 1517100979Srwatson{ 1518100979Srwatson 1519100979Srwatson mac_init_label(&de->de_label); 1520100979Srwatson MAC_PERFORM(init_devfsdirent, de, &de->de_label); 1521101988Srwatson#ifdef MAC_DEBUG 1522100979Srwatson atomic_add_int(&nmacdevfsdirents, 1); 1523101988Srwatson#endif 1524100979Srwatson} 1525100979Srwatson 1526100979Srwatsonvoid 1527100979Srwatsonmac_destroy_devfsdirent(struct devfs_dirent *de) 1528100979Srwatson{ 1529100979Srwatson 1530100979Srwatson MAC_PERFORM(destroy_devfsdirent, de, &de->de_label); 1531100979Srwatson mac_destroy_label(&de->de_label); 1532101988Srwatson#ifdef MAC_DEBUG 1533100979Srwatson atomic_subtract_int(&nmacdevfsdirents, 1); 1534101988Srwatson#endif 1535100979Srwatson} 1536100979Srwatson 1537100979Srwatsonstatic int 1538100979Srwatsonmac_externalize(struct label *label, struct mac *mac) 1539100979Srwatson{ 1540100979Srwatson int error; 1541100979Srwatson 1542100979Srwatson mac_init_structmac(mac); 1543100979Srwatson MAC_CHECK(externalize, label, mac); 1544100979Srwatson 1545100979Srwatson return (error); 1546100979Srwatson} 1547100979Srwatson 1548100979Srwatsonstatic int 1549100979Srwatsonmac_internalize(struct label *label, struct mac *mac) 1550100979Srwatson{ 1551100979Srwatson int error; 1552100979Srwatson 1553100979Srwatson mac_init_temp(label); 1554100979Srwatson MAC_CHECK(internalize, label, mac); 1555100979Srwatson if (error) 1556100979Srwatson mac_destroy_temp(label); 1557100979Srwatson 1558100979Srwatson return (error); 1559100979Srwatson} 1560100979Srwatson 1561100979Srwatson/* 1562100979Srwatson * Initialize MAC label for the first kernel process, from which other 1563100979Srwatson * kernel processes and threads are spawned. 1564100979Srwatson */ 1565100979Srwatsonvoid 1566100979Srwatsonmac_create_proc0(struct ucred *cred) 1567100979Srwatson{ 1568100979Srwatson 1569100979Srwatson MAC_PERFORM(create_proc0, cred); 1570100979Srwatson} 1571100979Srwatson 1572100979Srwatson/* 1573100979Srwatson * Initialize MAC label for the first userland process, from which other 1574100979Srwatson * userland processes and threads are spawned. 1575100979Srwatson */ 1576100979Srwatsonvoid 1577100979Srwatsonmac_create_proc1(struct ucred *cred) 1578100979Srwatson{ 1579100979Srwatson 1580100979Srwatson MAC_PERFORM(create_proc1, cred); 1581100979Srwatson} 1582100979Srwatson 1583100979Srwatson/* 1584100979Srwatson * When a new process is created, its label must be initialized. Generally, 1585100979Srwatson * this involves inheritence from the parent process, modulo possible 1586100979Srwatson * deltas. This function allows that processing to take place. 1587100979Srwatson */ 1588100979Srwatsonvoid 1589100979Srwatsonmac_create_cred(struct ucred *parent_cred, struct ucred *child_cred) 1590100979Srwatson{ 1591100979Srwatson 1592100979Srwatson MAC_PERFORM(create_cred, parent_cred, child_cred); 1593100979Srwatson} 1594100979Srwatson 1595100979Srwatsonint 1596100979Srwatsonmac_check_vnode_access(struct ucred *cred, struct vnode *vp, int flags) 1597100979Srwatson{ 1598100979Srwatson int error; 1599100979Srwatson 1600100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_access"); 1601100979Srwatson 1602100979Srwatson if (!mac_enforce_fs) 1603100979Srwatson return (0); 1604100979Srwatson 1605100979Srwatson error = vn_refreshlabel(vp, cred); 1606100979Srwatson if (error) 1607100979Srwatson return (error); 1608100979Srwatson 1609100979Srwatson MAC_CHECK(check_vnode_access, cred, vp, &vp->v_label, flags); 1610100979Srwatson return (error); 1611100979Srwatson} 1612100979Srwatson 1613100979Srwatsonint 1614100979Srwatsonmac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp) 1615100979Srwatson{ 1616100979Srwatson int error; 1617100979Srwatson 1618100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chdir"); 1619100979Srwatson 1620100979Srwatson if (!mac_enforce_fs) 1621100979Srwatson return (0); 1622100979Srwatson 1623100979Srwatson error = vn_refreshlabel(dvp, cred); 1624100979Srwatson if (error) 1625100979Srwatson return (error); 1626100979Srwatson 1627100979Srwatson MAC_CHECK(check_vnode_chdir, cred, dvp, &dvp->v_label); 1628100979Srwatson return (error); 1629100979Srwatson} 1630100979Srwatson 1631100979Srwatsonint 1632100979Srwatsonmac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp) 1633100979Srwatson{ 1634100979Srwatson int error; 1635100979Srwatson 1636100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chroot"); 1637100979Srwatson 1638100979Srwatson if (!mac_enforce_fs) 1639100979Srwatson return (0); 1640100979Srwatson 1641100979Srwatson error = vn_refreshlabel(dvp, cred); 1642100979Srwatson if (error) 1643100979Srwatson return (error); 1644100979Srwatson 1645100979Srwatson MAC_CHECK(check_vnode_chroot, cred, dvp, &dvp->v_label); 1646100979Srwatson return (error); 1647100979Srwatson} 1648100979Srwatson 1649100979Srwatsonint 1650100979Srwatsonmac_check_vnode_create(struct ucred *cred, struct vnode *dvp, 1651100979Srwatson struct componentname *cnp, struct vattr *vap) 1652100979Srwatson{ 1653100979Srwatson int error; 1654100979Srwatson 1655100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_create"); 1656100979Srwatson 1657100979Srwatson if (!mac_enforce_fs) 1658100979Srwatson return (0); 1659100979Srwatson 1660100979Srwatson error = vn_refreshlabel(dvp, cred); 1661100979Srwatson if (error) 1662100979Srwatson return (error); 1663100979Srwatson 1664100979Srwatson MAC_CHECK(check_vnode_create, cred, dvp, &dvp->v_label, cnp, vap); 1665100979Srwatson return (error); 1666100979Srwatson} 1667100979Srwatson 1668100979Srwatsonint 1669100979Srwatsonmac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, struct vnode *vp, 1670100979Srwatson struct componentname *cnp) 1671100979Srwatson{ 1672100979Srwatson int error; 1673100979Srwatson 1674100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_delete"); 1675100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_delete"); 1676100979Srwatson 1677100979Srwatson if (!mac_enforce_fs) 1678100979Srwatson return (0); 1679100979Srwatson 1680100979Srwatson error = vn_refreshlabel(dvp, cred); 1681100979Srwatson if (error) 1682100979Srwatson return (error); 1683100979Srwatson error = vn_refreshlabel(vp, cred); 1684100979Srwatson if (error) 1685100979Srwatson return (error); 1686100979Srwatson 1687100979Srwatson MAC_CHECK(check_vnode_delete, cred, dvp, &dvp->v_label, vp, 1688100979Srwatson &vp->v_label, cnp); 1689100979Srwatson return (error); 1690100979Srwatson} 1691100979Srwatson 1692100979Srwatsonint 1693100979Srwatsonmac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 1694100979Srwatson acl_type_t type) 1695100979Srwatson{ 1696100979Srwatson int error; 1697100979Srwatson 1698100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_deleteacl"); 1699100979Srwatson 1700100979Srwatson if (!mac_enforce_fs) 1701100979Srwatson return (0); 1702100979Srwatson 1703100979Srwatson error = vn_refreshlabel(vp, cred); 1704100979Srwatson if (error) 1705100979Srwatson return (error); 1706100979Srwatson 1707100979Srwatson MAC_CHECK(check_vnode_deleteacl, cred, vp, &vp->v_label, type); 1708100979Srwatson return (error); 1709100979Srwatson} 1710100979Srwatson 1711100979Srwatsonint 1712100979Srwatsonmac_check_vnode_exec(struct ucred *cred, struct vnode *vp) 1713100979Srwatson{ 1714100979Srwatson int error; 1715100979Srwatson 1716102102Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_exec"); 1717102102Srwatson 1718100979Srwatson if (!mac_enforce_process && !mac_enforce_fs) 1719100979Srwatson return (0); 1720100979Srwatson 1721100979Srwatson error = vn_refreshlabel(vp, cred); 1722100979Srwatson if (error) 1723100979Srwatson return (error); 1724100979Srwatson MAC_CHECK(check_vnode_exec, cred, vp, &vp->v_label); 1725100979Srwatson 1726100979Srwatson return (error); 1727100979Srwatson} 1728100979Srwatson 1729100979Srwatsonint 1730100979Srwatsonmac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, acl_type_t type) 1731100979Srwatson{ 1732100979Srwatson int error; 1733100979Srwatson 1734100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getacl"); 1735100979Srwatson 1736100979Srwatson if (!mac_enforce_fs) 1737100979Srwatson return (0); 1738100979Srwatson 1739100979Srwatson error = vn_refreshlabel(vp, cred); 1740100979Srwatson if (error) 1741100979Srwatson return (error); 1742100979Srwatson 1743100979Srwatson MAC_CHECK(check_vnode_getacl, cred, vp, &vp->v_label, type); 1744100979Srwatson return (error); 1745100979Srwatson} 1746100979Srwatson 1747100979Srwatsonint 1748100979Srwatsonmac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 1749100979Srwatson int attrnamespace, const char *name, struct uio *uio) 1750100979Srwatson{ 1751100979Srwatson int error; 1752100979Srwatson 1753100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getextattr"); 1754100979Srwatson 1755100979Srwatson if (!mac_enforce_fs) 1756100979Srwatson return (0); 1757100979Srwatson 1758100979Srwatson error = vn_refreshlabel(vp, cred); 1759100979Srwatson if (error) 1760100979Srwatson return (error); 1761100979Srwatson 1762100979Srwatson MAC_CHECK(check_vnode_getextattr, cred, vp, &vp->v_label, 1763100979Srwatson attrnamespace, name, uio); 1764100979Srwatson return (error); 1765100979Srwatson} 1766100979Srwatson 1767100979Srwatsonint 1768100979Srwatsonmac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 1769100979Srwatson struct componentname *cnp) 1770100979Srwatson{ 1771100979Srwatson int error; 1772100979Srwatson 1773100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_lookup"); 1774100979Srwatson 1775100979Srwatson if (!mac_enforce_fs) 1776100979Srwatson return (0); 1777100979Srwatson 1778100979Srwatson error = vn_refreshlabel(dvp, cred); 1779100979Srwatson if (error) 1780100979Srwatson return (error); 1781100979Srwatson 1782100979Srwatson MAC_CHECK(check_vnode_lookup, cred, dvp, &dvp->v_label, cnp); 1783100979Srwatson return (error); 1784100979Srwatson} 1785100979Srwatson 1786100979Srwatsonvm_prot_t 1787100979Srwatsonmac_check_vnode_mmap_prot(struct ucred *cred, struct vnode *vp, int newmapping) 1788100979Srwatson{ 1789100979Srwatson vm_prot_t result = VM_PROT_ALL; 1790100979Srwatson 1791103514Srwatson if (!mac_enforce_vm) 1792103514Srwatson return (result); 1793103514Srwatson 1794100979Srwatson /* 1795100979Srwatson * This should be some sort of MAC_BITWISE, maybe :) 1796100979Srwatson */ 1797100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_mmap_perms"); 1798100979Srwatson MAC_BOOLEAN(check_vnode_mmap_perms, &, cred, vp, &vp->v_label, 1799100979Srwatson newmapping); 1800100979Srwatson return (result); 1801100979Srwatson} 1802100979Srwatson 1803100979Srwatsonint 1804102112Srwatsonmac_check_vnode_open(struct ucred *cred, struct vnode *vp, mode_t acc_mode) 1805100979Srwatson{ 1806100979Srwatson int error; 1807100979Srwatson 1808102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_open"); 1809102112Srwatson 1810100979Srwatson if (!mac_enforce_fs) 1811100979Srwatson return (0); 1812100979Srwatson 1813102112Srwatson error = vn_refreshlabel(vp, cred); 1814102112Srwatson if (error) 1815102112Srwatson return (error); 1816100979Srwatson 1817102112Srwatson MAC_CHECK(check_vnode_open, cred, vp, &vp->v_label, acc_mode); 1818102112Srwatson return (error); 1819102112Srwatson} 1820102112Srwatson 1821102112Srwatsonint 1822102129Srwatsonmac_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 1823102129Srwatson struct vnode *vp) 1824102112Srwatson{ 1825102112Srwatson int error; 1826102112Srwatson 1827102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_poll"); 1828102112Srwatson 1829102112Srwatson if (!mac_enforce_fs) 1830102112Srwatson return (0); 1831102112Srwatson 1832102129Srwatson error = vn_refreshlabel(vp, active_cred); 1833100979Srwatson if (error) 1834100979Srwatson return (error); 1835100979Srwatson 1836102129Srwatson MAC_CHECK(check_vnode_poll, active_cred, file_cred, vp, 1837102129Srwatson &vp->v_label); 1838100979Srwatson 1839100979Srwatson return (error); 1840100979Srwatson} 1841100979Srwatson 1842100979Srwatsonint 1843102129Srwatsonmac_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 1844102129Srwatson struct vnode *vp) 1845100979Srwatson{ 1846100979Srwatson int error; 1847100979Srwatson 1848102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_read"); 1849100979Srwatson 1850100979Srwatson if (!mac_enforce_fs) 1851100979Srwatson return (0); 1852100979Srwatson 1853102129Srwatson error = vn_refreshlabel(vp, active_cred); 1854100979Srwatson if (error) 1855100979Srwatson return (error); 1856100979Srwatson 1857102129Srwatson MAC_CHECK(check_vnode_read, active_cred, file_cred, vp, 1858102129Srwatson &vp->v_label); 1859102112Srwatson 1860100979Srwatson return (error); 1861100979Srwatson} 1862100979Srwatson 1863100979Srwatsonint 1864100979Srwatsonmac_check_vnode_readdir(struct ucred *cred, struct vnode *dvp) 1865100979Srwatson{ 1866100979Srwatson int error; 1867100979Srwatson 1868100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_readdir"); 1869100979Srwatson 1870100979Srwatson if (!mac_enforce_fs) 1871100979Srwatson return (0); 1872100979Srwatson 1873100979Srwatson error = vn_refreshlabel(dvp, cred); 1874100979Srwatson if (error) 1875100979Srwatson return (error); 1876100979Srwatson 1877100979Srwatson MAC_CHECK(check_vnode_readdir, cred, dvp, &dvp->v_label); 1878100979Srwatson return (error); 1879100979Srwatson} 1880100979Srwatson 1881100979Srwatsonint 1882100979Srwatsonmac_check_vnode_readlink(struct ucred *cred, struct vnode *vp) 1883100979Srwatson{ 1884100979Srwatson int error; 1885100979Srwatson 1886100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_readlink"); 1887100979Srwatson 1888100979Srwatson if (!mac_enforce_fs) 1889100979Srwatson return (0); 1890100979Srwatson 1891100979Srwatson error = vn_refreshlabel(vp, cred); 1892100979Srwatson if (error) 1893100979Srwatson return (error); 1894100979Srwatson 1895100979Srwatson MAC_CHECK(check_vnode_readlink, cred, vp, &vp->v_label); 1896100979Srwatson return (error); 1897100979Srwatson} 1898100979Srwatson 1899100979Srwatsonstatic int 1900100979Srwatsonmac_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 1901100979Srwatson struct label *newlabel) 1902100979Srwatson{ 1903100979Srwatson int error; 1904100979Srwatson 1905100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_relabel"); 1906100979Srwatson 1907100979Srwatson error = vn_refreshlabel(vp, cred); 1908100979Srwatson if (error) 1909100979Srwatson return (error); 1910100979Srwatson 1911100979Srwatson MAC_CHECK(check_vnode_relabel, cred, vp, &vp->v_label, newlabel); 1912100979Srwatson 1913100979Srwatson return (error); 1914100979Srwatson} 1915100979Srwatson 1916100979Srwatsonint 1917100979Srwatsonmac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 1918100979Srwatson struct vnode *vp, struct componentname *cnp) 1919100979Srwatson{ 1920100979Srwatson int error; 1921100979Srwatson 1922100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_from"); 1923100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_from"); 1924100979Srwatson 1925100979Srwatson if (!mac_enforce_fs) 1926100979Srwatson return (0); 1927100979Srwatson 1928100979Srwatson error = vn_refreshlabel(dvp, cred); 1929100979Srwatson if (error) 1930100979Srwatson return (error); 1931100979Srwatson error = vn_refreshlabel(vp, cred); 1932100979Srwatson if (error) 1933100979Srwatson return (error); 1934100979Srwatson 1935100979Srwatson MAC_CHECK(check_vnode_rename_from, cred, dvp, &dvp->v_label, vp, 1936100979Srwatson &vp->v_label, cnp); 1937100979Srwatson return (error); 1938100979Srwatson} 1939100979Srwatson 1940100979Srwatsonint 1941100979Srwatsonmac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 1942100979Srwatson struct vnode *vp, int samedir, struct componentname *cnp) 1943100979Srwatson{ 1944100979Srwatson int error; 1945100979Srwatson 1946100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_to"); 1947100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_to"); 1948100979Srwatson 1949100979Srwatson if (!mac_enforce_fs) 1950100979Srwatson return (0); 1951100979Srwatson 1952100979Srwatson error = vn_refreshlabel(dvp, cred); 1953100979Srwatson if (error) 1954100979Srwatson return (error); 1955100979Srwatson if (vp != NULL) { 1956100979Srwatson error = vn_refreshlabel(vp, cred); 1957100979Srwatson if (error) 1958100979Srwatson return (error); 1959100979Srwatson } 1960100979Srwatson MAC_CHECK(check_vnode_rename_to, cred, dvp, &dvp->v_label, vp, 1961100979Srwatson vp != NULL ? &vp->v_label : NULL, samedir, cnp); 1962100979Srwatson return (error); 1963100979Srwatson} 1964100979Srwatson 1965100979Srwatsonint 1966100979Srwatsonmac_check_vnode_revoke(struct ucred *cred, struct vnode *vp) 1967100979Srwatson{ 1968100979Srwatson int error; 1969100979Srwatson 1970100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_revoke"); 1971100979Srwatson 1972100979Srwatson if (!mac_enforce_fs) 1973100979Srwatson return (0); 1974100979Srwatson 1975100979Srwatson error = vn_refreshlabel(vp, cred); 1976100979Srwatson if (error) 1977100979Srwatson return (error); 1978100979Srwatson 1979100979Srwatson MAC_CHECK(check_vnode_revoke, cred, vp, &vp->v_label); 1980100979Srwatson return (error); 1981100979Srwatson} 1982100979Srwatson 1983100979Srwatsonint 1984100979Srwatsonmac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, acl_type_t type, 1985100979Srwatson struct acl *acl) 1986100979Srwatson{ 1987100979Srwatson int error; 1988100979Srwatson 1989100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setacl"); 1990100979Srwatson 1991100979Srwatson if (!mac_enforce_fs) 1992100979Srwatson return (0); 1993100979Srwatson 1994100979Srwatson error = vn_refreshlabel(vp, cred); 1995100979Srwatson if (error) 1996100979Srwatson return (error); 1997100979Srwatson 1998100979Srwatson MAC_CHECK(check_vnode_setacl, cred, vp, &vp->v_label, type, acl); 1999100979Srwatson return (error); 2000100979Srwatson} 2001100979Srwatson 2002100979Srwatsonint 2003100979Srwatsonmac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 2004100979Srwatson int attrnamespace, const char *name, struct uio *uio) 2005100979Srwatson{ 2006100979Srwatson int error; 2007100979Srwatson 2008100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setextattr"); 2009100979Srwatson 2010100979Srwatson if (!mac_enforce_fs) 2011100979Srwatson return (0); 2012100979Srwatson 2013100979Srwatson error = vn_refreshlabel(vp, cred); 2014100979Srwatson if (error) 2015100979Srwatson return (error); 2016100979Srwatson 2017100979Srwatson MAC_CHECK(check_vnode_setextattr, cred, vp, &vp->v_label, 2018100979Srwatson attrnamespace, name, uio); 2019100979Srwatson return (error); 2020100979Srwatson} 2021100979Srwatson 2022100979Srwatsonint 2023100979Srwatsonmac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, u_long flags) 2024100979Srwatson{ 2025100979Srwatson int error; 2026100979Srwatson 2027100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setflags"); 2028100979Srwatson 2029100979Srwatson if (!mac_enforce_fs) 2030100979Srwatson return (0); 2031100979Srwatson 2032100979Srwatson error = vn_refreshlabel(vp, cred); 2033100979Srwatson if (error) 2034100979Srwatson return (error); 2035100979Srwatson 2036100979Srwatson MAC_CHECK(check_vnode_setflags, cred, vp, &vp->v_label, flags); 2037100979Srwatson return (error); 2038100979Srwatson} 2039100979Srwatson 2040100979Srwatsonint 2041100979Srwatsonmac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, mode_t mode) 2042100979Srwatson{ 2043100979Srwatson int error; 2044100979Srwatson 2045100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setmode"); 2046100979Srwatson 2047100979Srwatson if (!mac_enforce_fs) 2048100979Srwatson return (0); 2049100979Srwatson 2050100979Srwatson error = vn_refreshlabel(vp, cred); 2051100979Srwatson if (error) 2052100979Srwatson return (error); 2053100979Srwatson 2054100979Srwatson MAC_CHECK(check_vnode_setmode, cred, vp, &vp->v_label, mode); 2055100979Srwatson return (error); 2056100979Srwatson} 2057100979Srwatson 2058100979Srwatsonint 2059100979Srwatsonmac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, uid_t uid, 2060100979Srwatson gid_t gid) 2061100979Srwatson{ 2062100979Srwatson int error; 2063100979Srwatson 2064100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setowner"); 2065100979Srwatson 2066100979Srwatson if (!mac_enforce_fs) 2067100979Srwatson return (0); 2068100979Srwatson 2069100979Srwatson error = vn_refreshlabel(vp, cred); 2070100979Srwatson if (error) 2071100979Srwatson return (error); 2072100979Srwatson 2073100979Srwatson MAC_CHECK(check_vnode_setowner, cred, vp, &vp->v_label, uid, gid); 2074100979Srwatson return (error); 2075100979Srwatson} 2076100979Srwatson 2077100979Srwatsonint 2078100979Srwatsonmac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 2079100979Srwatson struct timespec atime, struct timespec mtime) 2080100979Srwatson{ 2081100979Srwatson int error; 2082100979Srwatson 2083100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setutimes"); 2084100979Srwatson 2085100979Srwatson if (!mac_enforce_fs) 2086100979Srwatson return (0); 2087100979Srwatson 2088100979Srwatson error = vn_refreshlabel(vp, cred); 2089100979Srwatson if (error) 2090100979Srwatson return (error); 2091100979Srwatson 2092100979Srwatson MAC_CHECK(check_vnode_setutimes, cred, vp, &vp->v_label, atime, 2093100979Srwatson mtime); 2094100979Srwatson return (error); 2095100979Srwatson} 2096100979Srwatson 2097100979Srwatsonint 2098102129Srwatsonmac_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 2099102129Srwatson struct vnode *vp) 2100100979Srwatson{ 2101100979Srwatson int error; 2102100979Srwatson 2103100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_stat"); 2104100979Srwatson 2105100979Srwatson if (!mac_enforce_fs) 2106100979Srwatson return (0); 2107100979Srwatson 2108102129Srwatson error = vn_refreshlabel(vp, active_cred); 2109100979Srwatson if (error) 2110100979Srwatson return (error); 2111100979Srwatson 2112102129Srwatson MAC_CHECK(check_vnode_stat, active_cred, file_cred, vp, 2113102129Srwatson &vp->v_label); 2114100979Srwatson return (error); 2115100979Srwatson} 2116100979Srwatson 2117102112Srwatsonint 2118102129Srwatsonmac_check_vnode_write(struct ucred *active_cred, struct ucred *file_cred, 2119102129Srwatson struct vnode *vp) 2120102112Srwatson{ 2121102112Srwatson int error; 2122102112Srwatson 2123102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_write"); 2124102112Srwatson 2125102112Srwatson if (!mac_enforce_fs) 2126102112Srwatson return (0); 2127102112Srwatson 2128102129Srwatson error = vn_refreshlabel(vp, active_cred); 2129102112Srwatson if (error) 2130102112Srwatson return (error); 2131102112Srwatson 2132102129Srwatson MAC_CHECK(check_vnode_write, active_cred, file_cred, vp, 2133102129Srwatson &vp->v_label); 2134102112Srwatson 2135102112Srwatson return (error); 2136102112Srwatson} 2137102112Srwatson 2138100979Srwatson/* 2139100979Srwatson * When relabeling a process, call out to the policies for the maximum 2140100979Srwatson * permission allowed for each object type we know about in its 2141100979Srwatson * memory space, and revoke access (in the least surprising ways we 2142100979Srwatson * know) when necessary. The process lock is not held here. 2143100979Srwatson */ 2144100979Srwatsonstatic void 2145100979Srwatsonmac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred) 2146100979Srwatson{ 2147100979Srwatson 2148100979Srwatson /* XXX freeze all other threads */ 2149100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2150100979Srwatson &td->td_proc->p_vmspace->vm_map); 2151100979Srwatson /* XXX allow other threads to continue */ 2152100979Srwatson} 2153100979Srwatson 2154100979Srwatsonstatic __inline const char * 2155100979Srwatsonprot2str(vm_prot_t prot) 2156100979Srwatson{ 2157100979Srwatson 2158100979Srwatson switch (prot & VM_PROT_ALL) { 2159100979Srwatson case VM_PROT_READ: 2160100979Srwatson return ("r--"); 2161100979Srwatson case VM_PROT_READ | VM_PROT_WRITE: 2162100979Srwatson return ("rw-"); 2163100979Srwatson case VM_PROT_READ | VM_PROT_EXECUTE: 2164100979Srwatson return ("r-x"); 2165100979Srwatson case VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE: 2166100979Srwatson return ("rwx"); 2167100979Srwatson case VM_PROT_WRITE: 2168100979Srwatson return ("-w-"); 2169100979Srwatson case VM_PROT_EXECUTE: 2170100979Srwatson return ("--x"); 2171100979Srwatson case VM_PROT_WRITE | VM_PROT_EXECUTE: 2172100979Srwatson return ("-wx"); 2173100979Srwatson default: 2174100979Srwatson return ("---"); 2175100979Srwatson } 2176100979Srwatson} 2177100979Srwatson 2178100979Srwatsonstatic void 2179100979Srwatsonmac_cred_mmapped_drop_perms_recurse(struct thread *td, struct ucred *cred, 2180100979Srwatson struct vm_map *map) 2181100979Srwatson{ 2182100979Srwatson struct vm_map_entry *vme; 2183100979Srwatson vm_prot_t result, revokeperms; 2184100979Srwatson vm_object_t object; 2185100979Srwatson vm_ooffset_t offset; 2186100979Srwatson struct vnode *vp; 2187100979Srwatson 2188103136Srwatson if (!mac_mmap_revocation) 2189103136Srwatson return; 2190103136Srwatson 2191100979Srwatson vm_map_lock_read(map); 2192100979Srwatson for (vme = map->header.next; vme != &map->header; vme = vme->next) { 2193100979Srwatson if (vme->eflags & MAP_ENTRY_IS_SUB_MAP) { 2194100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2195100979Srwatson vme->object.sub_map); 2196100979Srwatson continue; 2197100979Srwatson } 2198100979Srwatson /* 2199100979Srwatson * Skip over entries that obviously are not shared. 2200100979Srwatson */ 2201100979Srwatson if (vme->eflags & (MAP_ENTRY_COW | MAP_ENTRY_NOSYNC) || 2202100979Srwatson !vme->max_protection) 2203100979Srwatson continue; 2204100979Srwatson /* 2205100979Srwatson * Drill down to the deepest backing object. 2206100979Srwatson */ 2207100979Srwatson offset = vme->offset; 2208100979Srwatson object = vme->object.vm_object; 2209100979Srwatson if (object == NULL) 2210100979Srwatson continue; 2211100979Srwatson while (object->backing_object != NULL) { 2212100979Srwatson object = object->backing_object; 2213100979Srwatson offset += object->backing_object_offset; 2214100979Srwatson } 2215100979Srwatson /* 2216100979Srwatson * At the moment, vm_maps and objects aren't considered 2217100979Srwatson * by the MAC system, so only things with backing by a 2218100979Srwatson * normal object (read: vnodes) are checked. 2219100979Srwatson */ 2220100979Srwatson if (object->type != OBJT_VNODE) 2221100979Srwatson continue; 2222100979Srwatson vp = (struct vnode *)object->handle; 2223100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2224100979Srwatson result = mac_check_vnode_mmap_prot(cred, vp, 0); 2225100979Srwatson VOP_UNLOCK(vp, 0, td); 2226100979Srwatson /* 2227100979Srwatson * Find out what maximum protection we may be allowing 2228100979Srwatson * now but a policy needs to get removed. 2229100979Srwatson */ 2230100979Srwatson revokeperms = vme->max_protection & ~result; 2231100979Srwatson if (!revokeperms) 2232100979Srwatson continue; 2233102949Sbde printf("pid %ld: revoking %s perms from %#lx:%ld " 2234102949Sbde "(max %s/cur %s)\n", (long)td->td_proc->p_pid, 2235102949Sbde prot2str(revokeperms), (u_long)vme->start, 2236102949Sbde (long)(vme->end - vme->start), 2237100979Srwatson prot2str(vme->max_protection), prot2str(vme->protection)); 2238100979Srwatson vm_map_lock_upgrade(map); 2239100979Srwatson /* 2240100979Srwatson * This is the really simple case: if a map has more 2241100979Srwatson * max_protection than is allowed, but it's not being 2242100979Srwatson * actually used (that is, the current protection is 2243100979Srwatson * still allowed), we can just wipe it out and do 2244100979Srwatson * nothing more. 2245100979Srwatson */ 2246100979Srwatson if ((vme->protection & revokeperms) == 0) { 2247100979Srwatson vme->max_protection -= revokeperms; 2248100979Srwatson } else { 2249100979Srwatson if (revokeperms & VM_PROT_WRITE) { 2250100979Srwatson /* 2251100979Srwatson * In the more complicated case, flush out all 2252100979Srwatson * pending changes to the object then turn it 2253100979Srwatson * copy-on-write. 2254100979Srwatson */ 2255100979Srwatson vm_object_reference(object); 2256100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2257100979Srwatson vm_object_page_clean(object, 2258100979Srwatson OFF_TO_IDX(offset), 2259100979Srwatson OFF_TO_IDX(offset + vme->end - vme->start + 2260100979Srwatson PAGE_MASK), 2261100979Srwatson OBJPC_SYNC); 2262100979Srwatson VOP_UNLOCK(vp, 0, td); 2263100979Srwatson vm_object_deallocate(object); 2264100979Srwatson /* 2265100979Srwatson * Why bother if there's no read permissions 2266100979Srwatson * anymore? For the rest, we need to leave 2267100979Srwatson * the write permissions on for COW, or 2268100979Srwatson * remove them entirely if configured to. 2269100979Srwatson */ 2270100979Srwatson if (!mac_mmap_revocation_via_cow) { 2271100979Srwatson vme->max_protection &= ~VM_PROT_WRITE; 2272100979Srwatson vme->protection &= ~VM_PROT_WRITE; 2273100979Srwatson } if ((revokeperms & VM_PROT_READ) == 0) 2274100979Srwatson vme->eflags |= MAP_ENTRY_COW | 2275100979Srwatson MAP_ENTRY_NEEDS_COPY; 2276100979Srwatson } 2277100979Srwatson if (revokeperms & VM_PROT_EXECUTE) { 2278100979Srwatson vme->max_protection &= ~VM_PROT_EXECUTE; 2279100979Srwatson vme->protection &= ~VM_PROT_EXECUTE; 2280100979Srwatson } 2281100979Srwatson if (revokeperms & VM_PROT_READ) { 2282100979Srwatson vme->max_protection = 0; 2283100979Srwatson vme->protection = 0; 2284100979Srwatson } 2285100979Srwatson pmap_protect(map->pmap, vme->start, vme->end, 2286100979Srwatson vme->protection & ~revokeperms); 2287100979Srwatson vm_map_simplify_entry(map, vme); 2288100979Srwatson } 2289100979Srwatson vm_map_lock_downgrade(map); 2290100979Srwatson } 2291100979Srwatson vm_map_unlock_read(map); 2292100979Srwatson} 2293100979Srwatson 2294100979Srwatson/* 2295100979Srwatson * When the subject's label changes, it may require revocation of privilege 2296100979Srwatson * to mapped objects. This can't be done on-the-fly later with a unified 2297100979Srwatson * buffer cache. 2298100979Srwatson */ 2299100979Srwatsonstatic void 2300100979Srwatsonmac_relabel_cred(struct ucred *cred, struct label *newlabel) 2301100979Srwatson{ 2302100979Srwatson 2303100979Srwatson MAC_PERFORM(relabel_cred, cred, newlabel); 2304100979Srwatson} 2305100979Srwatson 2306100979Srwatsonvoid 2307100979Srwatsonmac_relabel_vnode(struct ucred *cred, struct vnode *vp, struct label *newlabel) 2308100979Srwatson{ 2309100979Srwatson 2310100979Srwatson MAC_PERFORM(relabel_vnode, cred, vp, &vp->v_label, newlabel); 2311100979Srwatson} 2312100979Srwatson 2313100979Srwatsonvoid 2314100979Srwatsonmac_create_ifnet(struct ifnet *ifnet) 2315100979Srwatson{ 2316100979Srwatson 2317100979Srwatson MAC_PERFORM(create_ifnet, ifnet, &ifnet->if_label); 2318100979Srwatson} 2319100979Srwatson 2320100979Srwatsonvoid 2321100979Srwatsonmac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d) 2322100979Srwatson{ 2323100979Srwatson 2324100979Srwatson MAC_PERFORM(create_bpfdesc, cred, bpf_d, &bpf_d->bd_label); 2325100979Srwatson} 2326100979Srwatson 2327100979Srwatsonvoid 2328100979Srwatsonmac_create_socket(struct ucred *cred, struct socket *socket) 2329100979Srwatson{ 2330100979Srwatson 2331100979Srwatson MAC_PERFORM(create_socket, cred, socket, &socket->so_label); 2332100979Srwatson} 2333100979Srwatson 2334100979Srwatsonvoid 2335100979Srwatsonmac_create_pipe(struct ucred *cred, struct pipe *pipe) 2336100979Srwatson{ 2337100979Srwatson 2338100979Srwatson MAC_PERFORM(create_pipe, cred, pipe, pipe->pipe_label); 2339100979Srwatson} 2340100979Srwatson 2341100979Srwatsonvoid 2342100979Srwatsonmac_create_socket_from_socket(struct socket *oldsocket, 2343100979Srwatson struct socket *newsocket) 2344100979Srwatson{ 2345100979Srwatson 2346100979Srwatson MAC_PERFORM(create_socket_from_socket, oldsocket, &oldsocket->so_label, 2347100979Srwatson newsocket, &newsocket->so_label); 2348100979Srwatson} 2349100979Srwatson 2350100979Srwatsonstatic void 2351100979Srwatsonmac_relabel_socket(struct ucred *cred, struct socket *socket, 2352100979Srwatson struct label *newlabel) 2353100979Srwatson{ 2354100979Srwatson 2355100979Srwatson MAC_PERFORM(relabel_socket, cred, socket, &socket->so_label, newlabel); 2356100979Srwatson} 2357100979Srwatson 2358100979Srwatsonstatic void 2359100979Srwatsonmac_relabel_pipe(struct ucred *cred, struct pipe *pipe, struct label *newlabel) 2360100979Srwatson{ 2361100979Srwatson 2362100979Srwatson MAC_PERFORM(relabel_pipe, cred, pipe, pipe->pipe_label, newlabel); 2363100979Srwatson} 2364100979Srwatson 2365100979Srwatsonvoid 2366100979Srwatsonmac_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct socket *socket) 2367100979Srwatson{ 2368100979Srwatson 2369100979Srwatson MAC_PERFORM(set_socket_peer_from_mbuf, mbuf, &mbuf->m_pkthdr.label, 2370100979Srwatson socket, &socket->so_peerlabel); 2371100979Srwatson} 2372100979Srwatson 2373100979Srwatsonvoid 2374100979Srwatsonmac_set_socket_peer_from_socket(struct socket *oldsocket, 2375100979Srwatson struct socket *newsocket) 2376100979Srwatson{ 2377100979Srwatson 2378100979Srwatson MAC_PERFORM(set_socket_peer_from_socket, oldsocket, 2379100979Srwatson &oldsocket->so_label, newsocket, &newsocket->so_peerlabel); 2380100979Srwatson} 2381100979Srwatson 2382100979Srwatsonvoid 2383100979Srwatsonmac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram) 2384100979Srwatson{ 2385100979Srwatson 2386100979Srwatson MAC_PERFORM(create_datagram_from_ipq, ipq, &ipq->ipq_label, 2387100979Srwatson datagram, &datagram->m_pkthdr.label); 2388100979Srwatson} 2389100979Srwatson 2390100979Srwatsonvoid 2391100979Srwatsonmac_create_fragment(struct mbuf *datagram, struct mbuf *fragment) 2392100979Srwatson{ 2393100979Srwatson 2394100979Srwatson MAC_PERFORM(create_fragment, datagram, &datagram->m_pkthdr.label, 2395100979Srwatson fragment, &fragment->m_pkthdr.label); 2396100979Srwatson} 2397100979Srwatson 2398100979Srwatsonvoid 2399100979Srwatsonmac_create_ipq(struct mbuf *fragment, struct ipq *ipq) 2400100979Srwatson{ 2401100979Srwatson 2402100979Srwatson MAC_PERFORM(create_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2403100979Srwatson &ipq->ipq_label); 2404100979Srwatson} 2405100979Srwatson 2406100979Srwatsonvoid 2407100979Srwatsonmac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2408100979Srwatson{ 2409100979Srwatson 2410100979Srwatson MAC_PERFORM(create_mbuf_from_mbuf, oldmbuf, &oldmbuf->m_pkthdr.label, 2411100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2412100979Srwatson} 2413100979Srwatson 2414100979Srwatsonvoid 2415100979Srwatsonmac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *mbuf) 2416100979Srwatson{ 2417100979Srwatson 2418100979Srwatson MAC_PERFORM(create_mbuf_from_bpfdesc, bpf_d, &bpf_d->bd_label, mbuf, 2419100979Srwatson &mbuf->m_pkthdr.label); 2420100979Srwatson} 2421100979Srwatson 2422100979Srwatsonvoid 2423100979Srwatsonmac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *mbuf) 2424100979Srwatson{ 2425100979Srwatson 2426100979Srwatson MAC_PERFORM(create_mbuf_linklayer, ifnet, &ifnet->if_label, mbuf, 2427100979Srwatson &mbuf->m_pkthdr.label); 2428100979Srwatson} 2429100979Srwatson 2430100979Srwatsonvoid 2431100979Srwatsonmac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *mbuf) 2432100979Srwatson{ 2433100979Srwatson 2434100979Srwatson MAC_PERFORM(create_mbuf_from_ifnet, ifnet, &ifnet->if_label, mbuf, 2435100979Srwatson &mbuf->m_pkthdr.label); 2436100979Srwatson} 2437100979Srwatson 2438100979Srwatsonvoid 2439100979Srwatsonmac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, struct ifnet *ifnet, 2440100979Srwatson struct mbuf *newmbuf) 2441100979Srwatson{ 2442100979Srwatson 2443100979Srwatson MAC_PERFORM(create_mbuf_multicast_encap, oldmbuf, 2444100979Srwatson &oldmbuf->m_pkthdr.label, ifnet, &ifnet->if_label, newmbuf, 2445100979Srwatson &newmbuf->m_pkthdr.label); 2446100979Srwatson} 2447100979Srwatson 2448100979Srwatsonvoid 2449100979Srwatsonmac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2450100979Srwatson{ 2451100979Srwatson 2452100979Srwatson MAC_PERFORM(create_mbuf_netlayer, oldmbuf, &oldmbuf->m_pkthdr.label, 2453100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2454100979Srwatson} 2455100979Srwatson 2456100979Srwatsonint 2457100979Srwatsonmac_fragment_match(struct mbuf *fragment, struct ipq *ipq) 2458100979Srwatson{ 2459100979Srwatson int result; 2460100979Srwatson 2461100979Srwatson result = 1; 2462100979Srwatson MAC_BOOLEAN(fragment_match, &&, fragment, &fragment->m_pkthdr.label, 2463100979Srwatson ipq, &ipq->ipq_label); 2464100979Srwatson 2465100979Srwatson return (result); 2466100979Srwatson} 2467100979Srwatson 2468100979Srwatsonvoid 2469100979Srwatsonmac_update_ipq(struct mbuf *fragment, struct ipq *ipq) 2470100979Srwatson{ 2471100979Srwatson 2472100979Srwatson MAC_PERFORM(update_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2473100979Srwatson &ipq->ipq_label); 2474100979Srwatson} 2475100979Srwatson 2476100979Srwatsonvoid 2477100979Srwatsonmac_create_mbuf_from_socket(struct socket *socket, struct mbuf *mbuf) 2478100979Srwatson{ 2479100979Srwatson 2480100979Srwatson MAC_PERFORM(create_mbuf_from_socket, socket, &socket->so_label, mbuf, 2481100979Srwatson &mbuf->m_pkthdr.label); 2482100979Srwatson} 2483100979Srwatson 2484100979Srwatsonvoid 2485100979Srwatsonmac_create_mount(struct ucred *cred, struct mount *mp) 2486100979Srwatson{ 2487100979Srwatson 2488100979Srwatson MAC_PERFORM(create_mount, cred, mp, &mp->mnt_mntlabel, 2489100979Srwatson &mp->mnt_fslabel); 2490100979Srwatson} 2491100979Srwatson 2492100979Srwatsonvoid 2493100979Srwatsonmac_create_root_mount(struct ucred *cred, struct mount *mp) 2494100979Srwatson{ 2495100979Srwatson 2496100979Srwatson MAC_PERFORM(create_root_mount, cred, mp, &mp->mnt_mntlabel, 2497100979Srwatson &mp->mnt_fslabel); 2498100979Srwatson} 2499100979Srwatson 2500100979Srwatsonint 2501100979Srwatsonmac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet) 2502100979Srwatson{ 2503100979Srwatson int error; 2504100979Srwatson 2505100979Srwatson if (!mac_enforce_network) 2506100979Srwatson return (0); 2507100979Srwatson 2508100979Srwatson MAC_CHECK(check_bpfdesc_receive, bpf_d, &bpf_d->bd_label, ifnet, 2509100979Srwatson &ifnet->if_label); 2510100979Srwatson 2511100979Srwatson return (error); 2512100979Srwatson} 2513100979Srwatson 2514100979Srwatsonstatic int 2515100979Srwatsonmac_check_cred_relabel(struct ucred *cred, struct label *newlabel) 2516100979Srwatson{ 2517100979Srwatson int error; 2518100979Srwatson 2519100979Srwatson MAC_CHECK(check_cred_relabel, cred, newlabel); 2520100979Srwatson 2521100979Srwatson return (error); 2522100979Srwatson} 2523100979Srwatson 2524100979Srwatsonint 2525100979Srwatsonmac_check_cred_visible(struct ucred *u1, struct ucred *u2) 2526100979Srwatson{ 2527100979Srwatson int error; 2528100979Srwatson 2529100979Srwatson if (!mac_enforce_process) 2530100979Srwatson return (0); 2531100979Srwatson 2532100979Srwatson MAC_CHECK(check_cred_visible, u1, u2); 2533100979Srwatson 2534100979Srwatson return (error); 2535100979Srwatson} 2536100979Srwatson 2537100979Srwatsonint 2538100979Srwatsonmac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *mbuf) 2539100979Srwatson{ 2540100979Srwatson int error; 2541100979Srwatson 2542100979Srwatson if (!mac_enforce_network) 2543100979Srwatson return (0); 2544100979Srwatson 2545100979Srwatson KASSERT(mbuf->m_flags & M_PKTHDR, ("packet has no pkthdr")); 2546100979Srwatson if (!(mbuf->m_pkthdr.label.l_flags & MAC_FLAG_INITIALIZED)) 2547100979Srwatson printf("%s%d: not initialized\n", ifnet->if_name, 2548100979Srwatson ifnet->if_unit); 2549100979Srwatson 2550100979Srwatson MAC_CHECK(check_ifnet_transmit, ifnet, &ifnet->if_label, mbuf, 2551100979Srwatson &mbuf->m_pkthdr.label); 2552100979Srwatson 2553100979Srwatson return (error); 2554100979Srwatson} 2555100979Srwatson 2556100979Srwatsonint 2557100979Srwatsonmac_check_mount_stat(struct ucred *cred, struct mount *mount) 2558100979Srwatson{ 2559100979Srwatson int error; 2560100979Srwatson 2561100979Srwatson if (!mac_enforce_fs) 2562100979Srwatson return (0); 2563100979Srwatson 2564100979Srwatson MAC_CHECK(check_mount_stat, cred, mount, &mount->mnt_mntlabel); 2565100979Srwatson 2566100979Srwatson return (error); 2567100979Srwatson} 2568100979Srwatson 2569100979Srwatsonint 2570100979Srwatsonmac_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe, unsigned long cmd, 2571100979Srwatson void *data) 2572100979Srwatson{ 2573100979Srwatson int error; 2574100979Srwatson 2575100979Srwatson MAC_CHECK(check_pipe_ioctl, cred, pipe, pipe->pipe_label, cmd, data); 2576100979Srwatson 2577100979Srwatson return (error); 2578100979Srwatson} 2579100979Srwatson 2580100979Srwatsonint 2581102115Srwatsonmac_check_pipe_poll(struct ucred *cred, struct pipe *pipe) 2582100979Srwatson{ 2583100979Srwatson int error; 2584100979Srwatson 2585102115Srwatson MAC_CHECK(check_pipe_poll, cred, pipe, pipe->pipe_label); 2586100979Srwatson 2587100979Srwatson return (error); 2588100979Srwatson} 2589100979Srwatson 2590102115Srwatsonint 2591102115Srwatsonmac_check_pipe_read(struct ucred *cred, struct pipe *pipe) 2592102115Srwatson{ 2593102115Srwatson int error; 2594102115Srwatson 2595102115Srwatson MAC_CHECK(check_pipe_read, cred, pipe, pipe->pipe_label); 2596102115Srwatson 2597102115Srwatson return (error); 2598102115Srwatson} 2599102115Srwatson 2600100979Srwatsonstatic int 2601100979Srwatsonmac_check_pipe_relabel(struct ucred *cred, struct pipe *pipe, 2602100979Srwatson struct label *newlabel) 2603100979Srwatson{ 2604100979Srwatson int error; 2605100979Srwatson 2606100979Srwatson MAC_CHECK(check_pipe_relabel, cred, pipe, pipe->pipe_label, newlabel); 2607100979Srwatson 2608100979Srwatson return (error); 2609100979Srwatson} 2610100979Srwatson 2611100979Srwatsonint 2612102115Srwatsonmac_check_pipe_stat(struct ucred *cred, struct pipe *pipe) 2613102115Srwatson{ 2614102115Srwatson int error; 2615102115Srwatson 2616102115Srwatson MAC_CHECK(check_pipe_stat, cred, pipe, pipe->pipe_label); 2617102115Srwatson 2618102115Srwatson return (error); 2619102115Srwatson} 2620102115Srwatson 2621102115Srwatsonint 2622102115Srwatsonmac_check_pipe_write(struct ucred *cred, struct pipe *pipe) 2623102115Srwatson{ 2624102115Srwatson int error; 2625102115Srwatson 2626102115Srwatson MAC_CHECK(check_pipe_write, cred, pipe, pipe->pipe_label); 2627102115Srwatson 2628102115Srwatson return (error); 2629102115Srwatson} 2630102115Srwatson 2631102115Srwatsonint 2632100979Srwatsonmac_check_proc_debug(struct ucred *cred, struct proc *proc) 2633100979Srwatson{ 2634100979Srwatson int error; 2635100979Srwatson 2636102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2637102103Srwatson 2638100979Srwatson if (!mac_enforce_process) 2639100979Srwatson return (0); 2640100979Srwatson 2641100979Srwatson MAC_CHECK(check_proc_debug, cred, proc); 2642100979Srwatson 2643100979Srwatson return (error); 2644100979Srwatson} 2645100979Srwatson 2646100979Srwatsonint 2647100979Srwatsonmac_check_proc_sched(struct ucred *cred, struct proc *proc) 2648100979Srwatson{ 2649100979Srwatson int error; 2650100979Srwatson 2651102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2652102103Srwatson 2653100979Srwatson if (!mac_enforce_process) 2654100979Srwatson return (0); 2655100979Srwatson 2656100979Srwatson MAC_CHECK(check_proc_sched, cred, proc); 2657100979Srwatson 2658100979Srwatson return (error); 2659100979Srwatson} 2660100979Srwatson 2661100979Srwatsonint 2662100979Srwatsonmac_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 2663100979Srwatson{ 2664100979Srwatson int error; 2665100979Srwatson 2666102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2667102103Srwatson 2668100979Srwatson if (!mac_enforce_process) 2669100979Srwatson return (0); 2670100979Srwatson 2671100979Srwatson MAC_CHECK(check_proc_signal, cred, proc, signum); 2672100979Srwatson 2673100979Srwatson return (error); 2674100979Srwatson} 2675100979Srwatson 2676100979Srwatsonint 2677100979Srwatsonmac_check_socket_bind(struct ucred *ucred, struct socket *socket, 2678100979Srwatson struct sockaddr *sockaddr) 2679100979Srwatson{ 2680100979Srwatson int error; 2681100979Srwatson 2682100979Srwatson if (!mac_enforce_socket) 2683100979Srwatson return (0); 2684100979Srwatson 2685100979Srwatson MAC_CHECK(check_socket_bind, ucred, socket, &socket->so_label, 2686100979Srwatson sockaddr); 2687100979Srwatson 2688100979Srwatson return (error); 2689100979Srwatson} 2690100979Srwatson 2691100979Srwatsonint 2692100979Srwatsonmac_check_socket_connect(struct ucred *cred, struct socket *socket, 2693100979Srwatson struct sockaddr *sockaddr) 2694100979Srwatson{ 2695100979Srwatson int error; 2696100979Srwatson 2697100979Srwatson if (!mac_enforce_socket) 2698100979Srwatson return (0); 2699100979Srwatson 2700100979Srwatson MAC_CHECK(check_socket_connect, cred, socket, &socket->so_label, 2701100979Srwatson sockaddr); 2702100979Srwatson 2703100979Srwatson return (error); 2704100979Srwatson} 2705100979Srwatson 2706100979Srwatsonint 2707101933Srwatsonmac_check_socket_deliver(struct socket *socket, struct mbuf *mbuf) 2708100979Srwatson{ 2709100979Srwatson int error; 2710100979Srwatson 2711100979Srwatson if (!mac_enforce_socket) 2712100979Srwatson return (0); 2713100979Srwatson 2714101933Srwatson MAC_CHECK(check_socket_deliver, socket, &socket->so_label, mbuf, 2715101933Srwatson &mbuf->m_pkthdr.label); 2716101933Srwatson 2717100979Srwatson return (error); 2718100979Srwatson} 2719100979Srwatson 2720100979Srwatsonint 2721101933Srwatsonmac_check_socket_listen(struct ucred *cred, struct socket *socket) 2722100979Srwatson{ 2723100979Srwatson int error; 2724100979Srwatson 2725100979Srwatson if (!mac_enforce_socket) 2726100979Srwatson return (0); 2727100979Srwatson 2728101933Srwatson MAC_CHECK(check_socket_listen, cred, socket, &socket->so_label); 2729100979Srwatson return (error); 2730100979Srwatson} 2731100979Srwatson 2732100979Srwatsonstatic int 2733100979Srwatsonmac_check_socket_relabel(struct ucred *cred, struct socket *socket, 2734100979Srwatson struct label *newlabel) 2735100979Srwatson{ 2736100979Srwatson int error; 2737100979Srwatson 2738100979Srwatson MAC_CHECK(check_socket_relabel, cred, socket, &socket->so_label, 2739100979Srwatson newlabel); 2740100979Srwatson 2741100979Srwatson return (error); 2742100979Srwatson} 2743100979Srwatson 2744100979Srwatsonint 2745100979Srwatsonmac_check_socket_visible(struct ucred *cred, struct socket *socket) 2746100979Srwatson{ 2747100979Srwatson int error; 2748100979Srwatson 2749100979Srwatson if (!mac_enforce_socket) 2750100979Srwatson return (0); 2751100979Srwatson 2752100979Srwatson MAC_CHECK(check_socket_visible, cred, socket, &socket->so_label); 2753100979Srwatson 2754100979Srwatson return (error); 2755100979Srwatson} 2756100979Srwatson 2757100979Srwatsonint 2758100979Srwatsonmac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, 2759100979Srwatson struct ifnet *ifnet) 2760100979Srwatson{ 2761100979Srwatson struct mac label; 2762100979Srwatson int error; 2763100979Srwatson 2764100979Srwatson error = mac_externalize(&ifnet->if_label, &label); 2765100979Srwatson if (error) 2766100979Srwatson return (error); 2767100979Srwatson 2768100979Srwatson return (copyout(&label, ifr->ifr_ifru.ifru_data, sizeof(label))); 2769100979Srwatson} 2770100979Srwatson 2771100979Srwatsonint 2772100979Srwatsonmac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, 2773100979Srwatson struct ifnet *ifnet) 2774100979Srwatson{ 2775100979Srwatson struct mac newlabel; 2776100979Srwatson struct label intlabel; 2777100979Srwatson int error; 2778100979Srwatson 2779100979Srwatson error = copyin(ifr->ifr_ifru.ifru_data, &newlabel, sizeof(newlabel)); 2780100979Srwatson if (error) 2781100979Srwatson return (error); 2782100979Srwatson 2783100979Srwatson error = mac_internalize(&intlabel, &newlabel); 2784100979Srwatson if (error) 2785100979Srwatson return (error); 2786100979Srwatson 2787100979Srwatson /* 2788100979Srwatson * XXX: Note that this is a redundant privilege check, since 2789100979Srwatson * policies impose this check themselves if required by the 2790100979Srwatson * policy. Eventually, this should go away. 2791100979Srwatson */ 2792100979Srwatson error = suser_cred(cred, 0); 2793100979Srwatson if (error) 2794100979Srwatson goto out; 2795100979Srwatson 2796100979Srwatson MAC_CHECK(check_ifnet_relabel, cred, ifnet, &ifnet->if_label, 2797100979Srwatson &intlabel); 2798100979Srwatson if (error) 2799100979Srwatson goto out; 2800100979Srwatson 2801100979Srwatson MAC_PERFORM(relabel_ifnet, cred, ifnet, &ifnet->if_label, &intlabel); 2802100979Srwatson 2803100979Srwatsonout: 2804100979Srwatson mac_destroy_temp(&intlabel); 2805100979Srwatson return (error); 2806100979Srwatson} 2807100979Srwatson 2808100979Srwatsonvoid 2809100979Srwatsonmac_create_devfs_vnode(struct devfs_dirent *de, struct vnode *vp) 2810100979Srwatson{ 2811100979Srwatson 2812100979Srwatson MAC_PERFORM(create_devfs_vnode, de, &de->de_label, vp, &vp->v_label); 2813100979Srwatson} 2814100979Srwatson 2815100979Srwatsonvoid 2816100979Srwatsonmac_create_devfs_device(dev_t dev, struct devfs_dirent *de) 2817100979Srwatson{ 2818100979Srwatson 2819100979Srwatson MAC_PERFORM(create_devfs_device, dev, de, &de->de_label); 2820100979Srwatson} 2821100979Srwatson 2822100979Srwatsonstatic int 2823100979Srwatsonmac_stdcreatevnode_ea(struct vnode *vp) 2824100979Srwatson{ 2825100979Srwatson int error; 2826100979Srwatson 2827100979Srwatson MAC_CHECK(stdcreatevnode_ea, vp, &vp->v_label); 2828100979Srwatson 2829100979Srwatson return (error); 2830100979Srwatson} 2831100979Srwatson 2832100979Srwatsonvoid 2833100979Srwatsonmac_create_devfs_directory(char *dirname, int dirnamelen, 2834100979Srwatson struct devfs_dirent *de) 2835100979Srwatson{ 2836100979Srwatson 2837100979Srwatson MAC_PERFORM(create_devfs_directory, dirname, dirnamelen, de, 2838100979Srwatson &de->de_label); 2839100979Srwatson} 2840100979Srwatson 2841100979Srwatson/* 2842100979Srwatson * When a new vnode is created, this call will initialize its label. 2843100979Srwatson */ 2844100979Srwatsonvoid 2845100979Srwatsonmac_create_vnode(struct ucred *cred, struct vnode *parent, 2846100979Srwatson struct vnode *child) 2847100979Srwatson{ 2848100979Srwatson int error; 2849100979Srwatson 2850100979Srwatson ASSERT_VOP_LOCKED(parent, "mac_create_vnode"); 2851100979Srwatson ASSERT_VOP_LOCKED(child, "mac_create_vnode"); 2852100979Srwatson 2853100979Srwatson error = vn_refreshlabel(parent, cred); 2854100979Srwatson if (error) { 2855100979Srwatson printf("mac_create_vnode: vn_refreshlabel returned %d\n", 2856100979Srwatson error); 2857100979Srwatson printf("mac_create_vnode: using old vnode label\n"); 2858100979Srwatson } 2859100979Srwatson 2860100979Srwatson MAC_PERFORM(create_vnode, cred, parent, &parent->v_label, child, 2861100979Srwatson &child->v_label); 2862100979Srwatson} 2863100979Srwatson 2864100979Srwatsonint 2865100979Srwatsonmac_setsockopt_label_set(struct ucred *cred, struct socket *so, 2866100979Srwatson struct mac *extmac) 2867100979Srwatson{ 2868100979Srwatson struct label intlabel; 2869100979Srwatson int error; 2870100979Srwatson 2871100979Srwatson error = mac_internalize(&intlabel, extmac); 2872100979Srwatson if (error) 2873100979Srwatson return (error); 2874100979Srwatson 2875100979Srwatson mac_check_socket_relabel(cred, so, &intlabel); 2876100979Srwatson if (error) { 2877100979Srwatson mac_destroy_temp(&intlabel); 2878100979Srwatson return (error); 2879100979Srwatson } 2880100979Srwatson 2881100979Srwatson mac_relabel_socket(cred, so, &intlabel); 2882100979Srwatson 2883100979Srwatson mac_destroy_temp(&intlabel); 2884100979Srwatson return (0); 2885100979Srwatson} 2886100979Srwatson 2887100979Srwatsonint 2888100979Srwatsonmac_pipe_label_set(struct ucred *cred, struct pipe *pipe, struct label *label) 2889100979Srwatson{ 2890100979Srwatson int error; 2891100979Srwatson 2892100979Srwatson error = mac_check_pipe_relabel(cred, pipe, label); 2893100979Srwatson if (error) 2894100979Srwatson return (error); 2895100979Srwatson 2896100979Srwatson mac_relabel_pipe(cred, pipe, label); 2897100979Srwatson 2898100979Srwatson return (0); 2899100979Srwatson} 2900100979Srwatson 2901100979Srwatsonint 2902100979Srwatsonmac_getsockopt_label_get(struct ucred *cred, struct socket *so, 2903100979Srwatson struct mac *extmac) 2904100979Srwatson{ 2905100979Srwatson 2906100979Srwatson return (mac_externalize(&so->so_label, extmac)); 2907100979Srwatson} 2908100979Srwatson 2909100979Srwatsonint 2910100979Srwatsonmac_getsockopt_peerlabel_get(struct ucred *cred, struct socket *so, 2911100979Srwatson struct mac *extmac) 2912100979Srwatson{ 2913100979Srwatson 2914100979Srwatson return (mac_externalize(&so->so_peerlabel, extmac)); 2915100979Srwatson} 2916100979Srwatson 2917100979Srwatson/* 2918100979Srwatson * Implementation of VOP_SETLABEL() that relies on extended attributes 2919100979Srwatson * to store label data. Can be referenced by filesystems supporting 2920100979Srwatson * extended attributes. 2921100979Srwatson */ 2922100979Srwatsonint 2923100979Srwatsonvop_stdsetlabel_ea(struct vop_setlabel_args *ap) 2924100979Srwatson{ 2925100979Srwatson struct vnode *vp = ap->a_vp; 2926100979Srwatson struct label *intlabel = ap->a_label; 2927100979Srwatson struct mac extmac; 2928100979Srwatson int error; 2929100979Srwatson 2930100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdsetlabel_ea"); 2931100979Srwatson 2932100979Srwatson /* 2933100979Srwatson * XXX: Eventually call out to EA check/set calls here. 2934100979Srwatson * Be particularly careful to avoid race conditions, 2935100979Srwatson * consistency problems, and stability problems when 2936100979Srwatson * dealing with multiple EAs. In particular, we require 2937100979Srwatson * the ability to write multiple EAs on the same file in 2938100979Srwatson * a single transaction, which the current EA interface 2939100979Srwatson * does not provide. 2940100979Srwatson */ 2941100979Srwatson 2942100979Srwatson error = mac_externalize(intlabel, &extmac); 2943100979Srwatson if (error) 2944100979Srwatson return (error); 2945100979Srwatson 2946100979Srwatson error = vn_extattr_set(vp, IO_NODELOCKED, 2947100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 2948100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 2949100979Srwatson if (error) 2950100979Srwatson return (error); 2951100979Srwatson 2952100979Srwatson mac_relabel_vnode(ap->a_cred, vp, intlabel); 2953100979Srwatson 2954101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 2955100979Srwatson 2956100979Srwatson return (0); 2957100979Srwatson} 2958100979Srwatson 2959100979Srwatsonstatic int 2960100979Srwatsonvn_setlabel(struct vnode *vp, struct label *intlabel, struct ucred *cred) 2961100979Srwatson{ 2962100979Srwatson int error; 2963100979Srwatson 2964100979Srwatson if (vp->v_mount == NULL) { 2965100979Srwatson /* printf("vn_setlabel: null v_mount\n"); */ 2966103314Snjl if (vp->v_type != VNON) 2967103314Snjl printf("vn_setlabel: null v_mount with non-VNON\n"); 2968100979Srwatson return (EBADF); 2969100979Srwatson } 2970100979Srwatson 2971100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) 2972100979Srwatson return (EOPNOTSUPP); 2973100979Srwatson 2974100979Srwatson /* 2975100979Srwatson * Multi-phase commit. First check the policies to confirm the 2976100979Srwatson * change is OK. Then commit via the filesystem. Finally, 2977100979Srwatson * update the actual vnode label. Question: maybe the filesystem 2978100979Srwatson * should update the vnode at the end as part of VOP_SETLABEL()? 2979100979Srwatson */ 2980100979Srwatson error = mac_check_vnode_relabel(cred, vp, intlabel); 2981100979Srwatson if (error) 2982100979Srwatson return (error); 2983100979Srwatson 2984100979Srwatson /* 2985100979Srwatson * VADMIN provides the opportunity for the filesystem to make 2986100979Srwatson * decisions about who is and is not able to modify labels 2987100979Srwatson * and protections on files. This might not be right. We can't 2988100979Srwatson * assume VOP_SETLABEL() will do it, because we might implement 2989100979Srwatson * that as part of vop_stdsetlabel_ea(). 2990100979Srwatson */ 2991100979Srwatson error = VOP_ACCESS(vp, VADMIN, cred, curthread); 2992100979Srwatson if (error) 2993100979Srwatson return (error); 2994100979Srwatson 2995100979Srwatson error = VOP_SETLABEL(vp, intlabel, cred, curthread); 2996100979Srwatson if (error) 2997100979Srwatson return (error); 2998100979Srwatson 2999100979Srwatson return (0); 3000100979Srwatson} 3001100979Srwatson 3002100979Srwatson/* 3003100979Srwatson * MPSAFE 3004100979Srwatson */ 3005100979Srwatsonint 3006100894Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 3007100894Srwatson{ 3008100979Srwatson struct mac extmac; 3009100979Srwatson int error; 3010100894Srwatson 3011100979Srwatson error = mac_externalize(&td->td_ucred->cr_label, &extmac); 3012100979Srwatson if (error == 0) 3013100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3014100979Srwatson 3015100979Srwatson return (error); 3016100979Srwatson} 3017100979Srwatson 3018100979Srwatson/* 3019100979Srwatson * MPSAFE 3020100979Srwatson */ 3021100979Srwatsonint 3022100979Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3023100979Srwatson{ 3024100979Srwatson struct ucred *newcred, *oldcred; 3025100979Srwatson struct proc *p; 3026100979Srwatson struct mac extmac; 3027100979Srwatson struct label intlabel; 3028100979Srwatson int error; 3029100979Srwatson 3030100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3031100979Srwatson if (error) 3032100979Srwatson return (error); 3033100979Srwatson 3034100979Srwatson error = mac_internalize(&intlabel, &extmac); 3035100979Srwatson if (error) 3036100979Srwatson return (error); 3037100979Srwatson 3038100979Srwatson newcred = crget(); 3039100979Srwatson 3040100979Srwatson p = td->td_proc; 3041100979Srwatson PROC_LOCK(p); 3042100979Srwatson oldcred = p->p_ucred; 3043100979Srwatson 3044100979Srwatson error = mac_check_cred_relabel(oldcred, &intlabel); 3045100979Srwatson if (error) { 3046100979Srwatson PROC_UNLOCK(p); 3047100979Srwatson mac_destroy_temp(&intlabel); 3048100979Srwatson crfree(newcred); 3049100979Srwatson return (error); 3050100979Srwatson } 3051100979Srwatson 3052100979Srwatson setsugid(p); 3053100979Srwatson crcopy(newcred, oldcred); 3054100979Srwatson mac_relabel_cred(newcred, &intlabel); 3055102136Srwatson p->p_ucred = newcred; 3056100979Srwatson 3057102136Srwatson /* 3058102136Srwatson * Grab additional reference for use while revoking mmaps, prior 3059102136Srwatson * to releasing the proc lock and sharing the cred. 3060102136Srwatson */ 3061102136Srwatson crhold(newcred); 3062100979Srwatson PROC_UNLOCK(p); 3063102136Srwatson 3064103135Srwatson mtx_lock(&Giant); 3065102136Srwatson mac_cred_mmapped_drop_perms(td, newcred); 3066103135Srwatson mtx_unlock(&Giant); 3067102136Srwatson 3068102136Srwatson crfree(newcred); /* Free revocation reference. */ 3069100979Srwatson crfree(oldcred); 3070100979Srwatson mac_destroy_temp(&intlabel); 3071100979Srwatson return (0); 3072100979Srwatson} 3073100979Srwatson 3074100979Srwatson/* 3075100979Srwatson * MPSAFE 3076100979Srwatson */ 3077100979Srwatsonint 3078100979Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3079100979Srwatson{ 3080100979Srwatson struct file *fp; 3081100979Srwatson struct mac extmac; 3082100979Srwatson struct vnode *vp; 3083100979Srwatson struct pipe *pipe; 3084100979Srwatson int error; 3085100979Srwatson 3086100979Srwatson mtx_lock(&Giant); 3087100979Srwatson 3088100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3089100979Srwatson if (error) 3090100979Srwatson goto out; 3091100979Srwatson 3092100979Srwatson switch (fp->f_type) { 3093100979Srwatson case DTYPE_FIFO: 3094100979Srwatson case DTYPE_VNODE: 3095100979Srwatson vp = (struct vnode *)fp->f_data; 3096100979Srwatson 3097100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3098100979Srwatson error = vn_refreshlabel(vp, td->td_ucred); 3099100979Srwatson if (error == 0) 3100100979Srwatson error = mac_externalize(&vp->v_label, &extmac); 3101100979Srwatson VOP_UNLOCK(vp, 0, td); 3102100979Srwatson break; 3103100979Srwatson case DTYPE_PIPE: 3104100979Srwatson pipe = (struct pipe *)fp->f_data; 3105100979Srwatson error = mac_externalize(pipe->pipe_label, &extmac); 3106100979Srwatson break; 3107100979Srwatson default: 3108100979Srwatson error = EINVAL; 3109100979Srwatson } 3110100979Srwatson 3111100979Srwatson if (error == 0) 3112100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3113100979Srwatson 3114100979Srwatson fdrop(fp, td); 3115100979Srwatson 3116100979Srwatsonout: 3117100979Srwatson mtx_unlock(&Giant); 3118100979Srwatson return (error); 3119100979Srwatson} 3120100979Srwatson 3121100979Srwatson/* 3122100979Srwatson * MPSAFE 3123100979Srwatson */ 3124100979Srwatsonint 3125100979Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3126100979Srwatson{ 3127100979Srwatson struct nameidata nd; 3128100979Srwatson struct mac extmac; 3129100979Srwatson int error; 3130100979Srwatson 3131100979Srwatson mtx_lock(&Giant); 3132100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3133100979Srwatson SCARG(uap, path_p), td); 3134100979Srwatson error = namei(&nd); 3135100979Srwatson if (error) 3136100979Srwatson goto out; 3137100979Srwatson 3138100979Srwatson error = vn_refreshlabel(nd.ni_vp, td->td_ucred); 3139100979Srwatson if (error == 0) 3140100979Srwatson error = mac_externalize(&nd.ni_vp->v_label, &extmac); 3141100979Srwatson NDFREE(&nd, 0); 3142100979Srwatson if (error) 3143100979Srwatson goto out; 3144100979Srwatson 3145100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3146100979Srwatson 3147100979Srwatsonout: 3148100979Srwatson mtx_unlock(&Giant); 3149100979Srwatson return (error); 3150100979Srwatson} 3151100979Srwatson 3152100979Srwatson/* 3153100979Srwatson * MPSAFE 3154100979Srwatson */ 3155100979Srwatsonint 3156100979Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3157100979Srwatson{ 3158100979Srwatson struct file *fp; 3159100979Srwatson struct mac extmac; 3160100979Srwatson struct label intlabel; 3161100979Srwatson struct mount *mp; 3162100979Srwatson struct vnode *vp; 3163100979Srwatson struct pipe *pipe; 3164100979Srwatson int error; 3165100979Srwatson 3166100979Srwatson mtx_lock(&Giant); 3167100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3168100979Srwatson if (error) 3169100979Srwatson goto out1; 3170100979Srwatson 3171100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3172100979Srwatson if (error) 3173100979Srwatson goto out2; 3174100979Srwatson 3175100979Srwatson error = mac_internalize(&intlabel, &extmac); 3176100979Srwatson if (error) 3177100979Srwatson goto out2; 3178100979Srwatson 3179100979Srwatson switch (fp->f_type) { 3180100979Srwatson case DTYPE_FIFO: 3181100979Srwatson case DTYPE_VNODE: 3182100979Srwatson vp = (struct vnode *)fp->f_data; 3183100979Srwatson error = vn_start_write(vp, &mp, V_WAIT | PCATCH); 3184100979Srwatson if (error != 0) 3185100979Srwatson break; 3186100979Srwatson 3187100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3188100979Srwatson error = vn_setlabel(vp, &intlabel, td->td_ucred); 3189100979Srwatson VOP_UNLOCK(vp, 0, td); 3190100979Srwatson vn_finished_write(mp); 3191100979Srwatson mac_destroy_temp(&intlabel); 3192100979Srwatson break; 3193100979Srwatson case DTYPE_PIPE: 3194100979Srwatson pipe = (struct pipe *)fp->f_data; 3195100979Srwatson error = mac_pipe_label_set(td->td_ucred, pipe, &intlabel); 3196100979Srwatson break; 3197100979Srwatson default: 3198100979Srwatson error = EINVAL; 3199100979Srwatson } 3200100979Srwatson 3201100979Srwatsonout2: 3202100979Srwatson fdrop(fp, td); 3203100979Srwatsonout1: 3204100979Srwatson mtx_unlock(&Giant); 3205100979Srwatson return (error); 3206100979Srwatson} 3207100979Srwatson 3208100979Srwatson/* 3209100979Srwatson * MPSAFE 3210100979Srwatson */ 3211100979Srwatsonint 3212100979Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3213100979Srwatson{ 3214100979Srwatson struct nameidata nd; 3215100979Srwatson struct mac extmac; 3216100979Srwatson struct label intlabel; 3217100979Srwatson struct mount *mp; 3218100979Srwatson int error; 3219100979Srwatson 3220100979Srwatson mtx_lock(&Giant); 3221100979Srwatson 3222100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3223100979Srwatson if (error) 3224100979Srwatson goto out; 3225100979Srwatson 3226100979Srwatson error = mac_internalize(&intlabel, &extmac); 3227100979Srwatson if (error) 3228100979Srwatson goto out; 3229100979Srwatson 3230100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3231100979Srwatson SCARG(uap, path_p), td); 3232100979Srwatson error = namei(&nd); 3233100979Srwatson if (error) 3234100979Srwatson goto out2; 3235100979Srwatson error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH); 3236100979Srwatson if (error) 3237100979Srwatson goto out2; 3238100979Srwatson 3239100979Srwatson error = vn_setlabel(nd.ni_vp, &intlabel, td->td_ucred); 3240100979Srwatson 3241100979Srwatson vn_finished_write(mp); 3242100979Srwatsonout2: 3243100979Srwatson mac_destroy_temp(&intlabel); 3244100979Srwatson NDFREE(&nd, 0); 3245100979Srwatsonout: 3246100979Srwatson mtx_unlock(&Giant); 3247100979Srwatson return (error); 3248100979Srwatson} 3249100979Srwatson 3250102123Srwatsonint 3251102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3252102123Srwatson{ 3253102123Srwatson struct mac_policy_conf *mpc; 3254102123Srwatson char target[MAC_MAX_POLICY_NAME]; 3255102123Srwatson int error; 3256102123Srwatson 3257102123Srwatson error = copyinstr(SCARG(uap, policy), target, sizeof(target), NULL); 3258102123Srwatson if (error) 3259102123Srwatson return (error); 3260102123Srwatson 3261102123Srwatson error = ENOSYS; 3262102123Srwatson MAC_POLICY_LIST_BUSY(); 3263102123Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { 3264102123Srwatson if (strcmp(mpc->mpc_name, target) == 0 && 3265102123Srwatson mpc->mpc_ops->mpo_syscall != NULL) { 3266102123Srwatson error = mpc->mpc_ops->mpo_syscall(td, 3267102123Srwatson SCARG(uap, call), SCARG(uap, arg)); 3268102123Srwatson goto out; 3269102123Srwatson } 3270102123Srwatson } 3271102123Srwatson 3272102123Srwatsonout: 3273102123Srwatson MAC_POLICY_LIST_UNBUSY(); 3274102123Srwatson return (error); 3275102123Srwatson} 3276102123Srwatson 3277100979SrwatsonSYSINIT(mac, SI_SUB_MAC, SI_ORDER_FIRST, mac_init, NULL); 3278100979SrwatsonSYSINIT(mac_late, SI_SUB_MAC_LATE, SI_ORDER_FIRST, mac_late_init, NULL); 3279100979Srwatson 3280100979Srwatson#else /* !MAC */ 3281100979Srwatson 3282100979Srwatsonint 3283100979Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 3284100979Srwatson{ 3285100979Srwatson 3286100894Srwatson return (ENOSYS); 3287100894Srwatson} 3288100894Srwatson 3289100894Srwatsonint 3290100894Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3291100894Srwatson{ 3292100894Srwatson 3293100894Srwatson return (ENOSYS); 3294100894Srwatson} 3295100894Srwatson 3296100894Srwatsonint 3297100894Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3298100894Srwatson{ 3299100894Srwatson 3300100894Srwatson return (ENOSYS); 3301100894Srwatson} 3302100894Srwatson 3303100894Srwatsonint 3304100894Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3305100894Srwatson{ 3306100894Srwatson 3307100894Srwatson return (ENOSYS); 3308100894Srwatson} 3309100894Srwatson 3310100894Srwatsonint 3311100894Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3312100894Srwatson{ 3313100894Srwatson 3314100894Srwatson return (ENOSYS); 3315100894Srwatson} 3316100894Srwatson 3317100894Srwatsonint 3318100894Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3319100894Srwatson{ 3320100894Srwatson 3321100894Srwatson return (ENOSYS); 3322100894Srwatson} 3323100979Srwatson 3324102123Srwatsonint 3325102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3326102123Srwatson{ 3327102123Srwatson 3328102123Srwatson return (ENOSYS); 3329102123Srwatson} 3330102123Srwatson 3331100979Srwatson#endif /* !MAC */ 3332