mac_process.c revision 102136
1100894Srwatson/*- 2100894Srwatson * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson 3100894Srwatson * Copyright (c) 2001 Ilmar S. Habibulin 4100894Srwatson * Copyright (c) 2001, 2002 Networks Associates Technology, Inc. 5100894Srwatson * All rights reserved. 6100894Srwatson * 7100894Srwatson * This software was developed by Robert Watson and Ilmar Habibulin for the 8100894Srwatson * TrustedBSD Project. 9100894Srwatson * 10100894Srwatson * This software was developed for the FreeBSD Project in part by NAI Labs, 11100894Srwatson * the Security Research Division of Network Associates, Inc. under 12100894Srwatson * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA 13100894Srwatson * CHATS research program. 14100894Srwatson * 15100894Srwatson * Redistribution and use in source and binary forms, with or without 16100894Srwatson * modification, are permitted provided that the following conditions 17100894Srwatson * are met: 18100894Srwatson * 1. Redistributions of source code must retain the above copyright 19100894Srwatson * notice, this list of conditions and the following disclaimer. 20100894Srwatson * 2. Redistributions in binary form must reproduce the above copyright 21100894Srwatson * notice, this list of conditions and the following disclaimer in the 22100894Srwatson * documentation and/or other materials provided with the distribution. 23100894Srwatson * 3. The names of the authors may not be used to endorse or promote 24100894Srwatson * products derived from this software without specific prior written 25100894Srwatson * permission. 26100894Srwatson * 27100894Srwatson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 28100894Srwatson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29100894Srwatson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30100894Srwatson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 31100894Srwatson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32100894Srwatson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33100894Srwatson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34100894Srwatson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35100894Srwatson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36100894Srwatson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37100894Srwatson * SUCH DAMAGE. 38100894Srwatson * 39100894Srwatson * $FreeBSD: head/sys/security/mac/mac_process.c 102136 2002-08-19 20:26:32Z 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> 54100979Srwatson#include <sys/mutex.h> 55100979Srwatson#include <sys/sx.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/sx.h> 70100979Srwatson#include <sys/sysctl.h> 71100894Srwatson 72100979Srwatson#include <vm/vm.h> 73100979Srwatson#include <vm/pmap.h> 74100979Srwatson#include <vm/vm_map.h> 75100979Srwatson#include <vm/vm_object.h> 76100979Srwatson 77100979Srwatson#include <sys/mac_policy.h> 78100979Srwatson 79100979Srwatson#include <fs/devfs/devfs.h> 80100979Srwatson 81100979Srwatson#include <net/bpf.h> 82100979Srwatson#include <net/bpfdesc.h> 83100979Srwatson#include <net/if.h> 84100979Srwatson#include <net/if_var.h> 85100979Srwatson 86100979Srwatson#include <netinet/in.h> 87100979Srwatson#include <netinet/ip_var.h> 88100979Srwatson 89100979Srwatson#ifdef MAC 90100979Srwatson 91101712Srwatson/* 92101712Srwatson * Declare that the kernel provides MAC support, version 1. This permits 93101712Srwatson * modules to refuse to be loaded if the necessary support isn't present, 94101712Srwatson * even if it's pre-boot. 95101712Srwatson */ 96101712SrwatsonMODULE_VERSION(kernel_mac_support, 1); 97101712Srwatson 98100979SrwatsonSYSCTL_DECL(_security); 99100979Srwatson 100100979SrwatsonSYSCTL_NODE(_security, OID_AUTO, mac, CTLFLAG_RW, 0, 101100979Srwatson "TrustedBSD MAC policy controls"); 102100979SrwatsonSYSCTL_NODE(_security_mac, OID_AUTO, debug, CTLFLAG_RW, 0, 103100979Srwatson "TrustedBSD MAC debug info"); 104100979Srwatson 105100979Srwatsonstatic int mac_debug_label_fallback = 0; 106100979SrwatsonSYSCTL_INT(_security_mac_debug, OID_AUTO, label_fallback, CTLFLAG_RW, 107100979Srwatson &mac_debug_label_fallback, 0, "Filesystems should fall back to fs label" 108100979Srwatson "when label is corrupted."); 109100979SrwatsonTUNABLE_INT("security.mac.debug_label_fallback", 110100979Srwatson &mac_debug_label_fallback); 111100979Srwatson 112100979Srwatson#ifndef MAC_MAX_POLICIES 113100979Srwatson#define MAC_MAX_POLICIES 8 114100979Srwatson#endif 115100979Srwatson#if MAC_MAX_POLICIES > 32 116100979Srwatson#error "MAC_MAX_POLICIES too large" 117100979Srwatson#endif 118100979Srwatsonstatic unsigned int mac_max_policies = MAC_MAX_POLICIES; 119100979Srwatsonstatic unsigned int mac_policy_offsets_free = (1 << MAC_MAX_POLICIES) - 1; 120100979SrwatsonSYSCTL_UINT(_security_mac, OID_AUTO, max_policies, CTLFLAG_RD, 121100979Srwatson &mac_max_policies, 0, ""); 122100979Srwatson 123100979Srwatsonstatic int mac_late = 0; 124100979Srwatson 125100979Srwatsonstatic int mac_enforce_fs = 1; 126100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_fs, CTLFLAG_RW, 127100979Srwatson &mac_enforce_fs, 0, "Enforce MAC policy on file system objects"); 128100979SrwatsonTUNABLE_INT("security.mac.enforce_fs", &mac_enforce_fs); 129100979Srwatson 130100979Srwatsonstatic int mac_enforce_network = 1; 131100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_network, CTLFLAG_RW, 132100979Srwatson &mac_enforce_network, 0, "Enforce MAC policy on network packets"); 133100979SrwatsonTUNABLE_INT("security.mac.enforce_network", &mac_enforce_network); 134100979Srwatson 135100979Srwatsonstatic int mac_enforce_process = 1; 136100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_process, CTLFLAG_RW, 137100979Srwatson &mac_enforce_process, 0, "Enforce MAC policy on inter-process operations"); 138100979SrwatsonTUNABLE_INT("security.mac.enforce_process", &mac_enforce_process); 139100979Srwatson 140100979Srwatsonstatic int mac_enforce_socket = 1; 141100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_socket, CTLFLAG_RW, 142100979Srwatson &mac_enforce_socket, 0, "Enforce MAC policy on socket operations"); 143100979SrwatsonTUNABLE_INT("security.mac.enforce_socket", &mac_enforce_socket); 144100979Srwatson 145100979Srwatsonstatic int mac_enforce_pipe = 1; 146100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, enforce_pipe, CTLFLAG_RW, 147100979Srwatson &mac_enforce_pipe, 0, "Enforce MAC policy on pipe operations"); 148100979Srwatson 149100979Srwatsonstatic int mac_label_size = sizeof(struct mac); 150100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, label_size, CTLFLAG_RD, 151100979Srwatson &mac_label_size, 0, "Pre-compiled MAC label size"); 152100979Srwatson 153100979Srwatsonstatic int mac_cache_fslabel_in_vnode = 1; 154100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, cache_fslabel_in_vnode, CTLFLAG_RW, 155100979Srwatson &mac_cache_fslabel_in_vnode, 0, "Cache mount fslabel in vnode"); 156100979SrwatsonTUNABLE_INT("security.mac.cache_fslabel_in_vnode", 157100979Srwatson &mac_cache_fslabel_in_vnode); 158100979Srwatson 159100979Srwatsonstatic int mac_vnode_label_cache_hits = 0; 160100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD, 161100979Srwatson &mac_vnode_label_cache_hits, 0, "Cache hits on vnode labels"); 162100979Srwatsonstatic int mac_vnode_label_cache_misses = 0; 163100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD, 164100979Srwatson &mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels"); 165101892Srwatsonstatic int mac_mmap_revocation_via_cow = 0; 166100979SrwatsonSYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW, 167100979Srwatson &mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via " 168100979Srwatson "copy-on-write semantics, or by removing all write access"); 169100979Srwatson 170101988Srwatson#ifdef MAC_DEBUG 171100979Srwatsonstatic unsigned int nmacmbufs, nmaccreds, nmacifnets, nmacbpfdescs, 172100979Srwatson nmacsockets, nmacmounts, nmactemp, nmacvnodes, nmacdevfsdirents, 173100979Srwatson nmacipqs, nmacpipes; 174100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, mbufs, CTLFLAG_RD, 175100979Srwatson &nmacmbufs, 0, "number of mbufs in use"); 176100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, creds, CTLFLAG_RD, 177100979Srwatson &nmaccreds, 0, "number of ucreds in use"); 178100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, ifnets, CTLFLAG_RD, 179100979Srwatson &nmacifnets, 0, "number of ifnets in use"); 180100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, ipqs, CTLFLAG_RD, 181100979Srwatson &nmacipqs, 0, "number of ipqs in use"); 182100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, bpfdescs, CTLFLAG_RD, 183100979Srwatson &nmacbpfdescs, 0, "number of bpfdescs in use"); 184100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, sockets, CTLFLAG_RD, 185100979Srwatson &nmacsockets, 0, "number of sockets in use"); 186100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, pipes, CTLFLAG_RD, 187100979Srwatson &nmacpipes, 0, "number of pipes in use"); 188100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, mounts, CTLFLAG_RD, 189100979Srwatson &nmacmounts, 0, "number of mounts in use"); 190100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, temp, CTLFLAG_RD, 191100979Srwatson &nmactemp, 0, "number of temporary labels in use"); 192100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, vnodes, CTLFLAG_RD, 193100979Srwatson &nmacvnodes, 0, "number of vnodes in use"); 194100979SrwatsonSYSCTL_UINT(_security_mac_debug, OID_AUTO, devfsdirents, CTLFLAG_RD, 195100979Srwatson &nmacdevfsdirents, 0, "number of devfs dirents inuse"); 196101988Srwatson#endif 197100979Srwatson 198100979Srwatsonstatic int error_select(int error1, int error2); 199100979Srwatsonstatic int mac_externalize(struct label *label, struct mac *mac); 200100979Srwatsonstatic int mac_policy_register(struct mac_policy_conf *mpc); 201100979Srwatsonstatic int mac_policy_unregister(struct mac_policy_conf *mpc); 202100979Srwatson 203100979Srwatsonstatic int mac_stdcreatevnode_ea(struct vnode *vp); 204100979Srwatsonstatic void mac_cred_mmapped_drop_perms(struct thread *td, 205100979Srwatson struct ucred *cred); 206100979Srwatsonstatic void mac_cred_mmapped_drop_perms_recurse(struct thread *td, 207100979Srwatson struct ucred *cred, struct vm_map *map); 208100979Srwatson 209100979SrwatsonMALLOC_DEFINE(M_MACOPVEC, "macopvec", "MAC policy operation vector"); 210100979SrwatsonMALLOC_DEFINE(M_MACPIPELABEL, "macpipelabel", "MAC labels for pipes"); 211100979Srwatson 212100979Srwatson/* 213100979Srwatson * mac_policy_list_lock protects the consistency of 'mac_policy_list', 214100979Srwatson * the linked list of attached policy modules. Read-only consumers of 215100979Srwatson * the list must acquire a shared lock for the duration of their use; 216100979Srwatson * writers must acquire an exclusive lock. Note that for compound 217100979Srwatson * operations, locks should be held for the entire compound operation, 218100979Srwatson * and that this is not yet done for relabel requests. 219100979Srwatson */ 220100979Srwatsonstatic struct mtx mac_policy_list_lock; 221100979Srwatsonstatic LIST_HEAD(, mac_policy_conf) mac_policy_list; 222100979Srwatsonstatic int mac_policy_list_busy; 223100979Srwatson#define MAC_POLICY_LIST_LOCKINIT() mtx_init(&mac_policy_list_lock, \ 224100979Srwatson "mac_policy_list_lock", NULL, MTX_DEF); 225100979Srwatson#define MAC_POLICY_LIST_LOCK() mtx_lock(&mac_policy_list_lock); 226100979Srwatson#define MAC_POLICY_LIST_UNLOCK() mtx_unlock(&mac_policy_list_lock); 227100979Srwatson 228100979Srwatson#define MAC_POLICY_LIST_BUSY() do { \ 229100979Srwatson MAC_POLICY_LIST_LOCK(); \ 230100979Srwatson mac_policy_list_busy++; \ 231100979Srwatson MAC_POLICY_LIST_UNLOCK(); \ 232100979Srwatson} while (0) 233100979Srwatson 234100979Srwatson#define MAC_POLICY_LIST_UNBUSY() do { \ 235100979Srwatson MAC_POLICY_LIST_LOCK(); \ 236100979Srwatson mac_policy_list_busy--; \ 237100979Srwatson if (mac_policy_list_busy < 0) \ 238100979Srwatson panic("Extra mac_policy_list_busy--"); \ 239100979Srwatson MAC_POLICY_LIST_UNLOCK(); \ 240100979Srwatson} while (0) 241100979Srwatson 242100979Srwatson/* 243100979Srwatson * MAC_CHECK performs the designated check by walking the policy 244100979Srwatson * module list and checking with each as to how it feels about the 245100979Srwatson * request. Note that it returns its value via 'error' in the scope 246100979Srwatson * of the caller. 247100979Srwatson */ 248100979Srwatson#define MAC_CHECK(check, args...) do { \ 249100979Srwatson struct mac_policy_conf *mpc; \ 250100979Srwatson \ 251100979Srwatson error = 0; \ 252100979Srwatson MAC_POLICY_LIST_BUSY(); \ 253100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 254100979Srwatson if (mpc->mpc_ops->mpo_ ## check != NULL) \ 255100979Srwatson error = error_select( \ 256100979Srwatson mpc->mpc_ops->mpo_ ## check (args), \ 257100979Srwatson error); \ 258100979Srwatson } \ 259100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 260100979Srwatson} while (0) 261100979Srwatson 262100979Srwatson/* 263100979Srwatson * MAC_BOOLEAN performs the designated boolean composition by walking 264100979Srwatson * the module list, invoking each instance of the operation, and 265100979Srwatson * combining the results using the passed C operator. Note that it 266100979Srwatson * returns its value via 'result' in the scope of the caller, which 267100979Srwatson * should be initialized by the caller in a meaningful way to get 268100979Srwatson * a meaningful result. 269100979Srwatson */ 270100979Srwatson#define MAC_BOOLEAN(operation, composition, args...) do { \ 271100979Srwatson struct mac_policy_conf *mpc; \ 272100979Srwatson \ 273100979Srwatson MAC_POLICY_LIST_BUSY(); \ 274100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 275100979Srwatson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 276100979Srwatson result = result composition \ 277100979Srwatson mpc->mpc_ops->mpo_ ## operation (args); \ 278100979Srwatson } \ 279100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 280100979Srwatson} while (0) 281100979Srwatson 282100979Srwatson/* 283100979Srwatson * MAC_PERFORM performs the designated operation by walking the policy 284100979Srwatson * module list and invoking that operation for each policy. 285100979Srwatson */ 286100979Srwatson#define MAC_PERFORM(operation, args...) do { \ 287100979Srwatson struct mac_policy_conf *mpc; \ 288100979Srwatson \ 289100979Srwatson MAC_POLICY_LIST_BUSY(); \ 290100979Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 291100979Srwatson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 292100979Srwatson mpc->mpc_ops->mpo_ ## operation (args); \ 293100979Srwatson } \ 294100979Srwatson MAC_POLICY_LIST_UNBUSY(); \ 295100979Srwatson} while (0) 296100979Srwatson 297100979Srwatson/* 298100979Srwatson * Initialize the MAC subsystem, including appropriate SMP locks. 299100979Srwatson */ 300100979Srwatsonstatic void 301100979Srwatsonmac_init(void) 302100979Srwatson{ 303100979Srwatson 304100979Srwatson LIST_INIT(&mac_policy_list); 305100979Srwatson MAC_POLICY_LIST_LOCKINIT(); 306100979Srwatson} 307100979Srwatson 308100979Srwatson/* 309100979Srwatson * For the purposes of modules that want to know if they were loaded 310100979Srwatson * "early", set the mac_late flag once we've processed modules either 311100979Srwatson * linked into the kernel, or loaded before the kernel startup. 312100979Srwatson */ 313100979Srwatsonstatic void 314100979Srwatsonmac_late_init(void) 315100979Srwatson{ 316100979Srwatson 317100979Srwatson mac_late = 1; 318100979Srwatson} 319100979Srwatson 320100979Srwatson/* 321100979Srwatson * Allow MAC policy modules to register during boot, etc. 322100979Srwatson */ 323100894Srwatsonint 324100979Srwatsonmac_policy_modevent(module_t mod, int type, void *data) 325100979Srwatson{ 326100979Srwatson struct mac_policy_conf *mpc; 327100979Srwatson int error; 328100979Srwatson 329100979Srwatson error = 0; 330100979Srwatson mpc = (struct mac_policy_conf *) data; 331100979Srwatson 332100979Srwatson switch (type) { 333100979Srwatson case MOD_LOAD: 334100979Srwatson if (mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_NOTLATE && 335100979Srwatson mac_late) { 336100979Srwatson printf("mac_policy_modevent: can't load %s policy " 337100979Srwatson "after booting\n", mpc->mpc_name); 338100979Srwatson error = EBUSY; 339100979Srwatson break; 340100979Srwatson } 341100979Srwatson error = mac_policy_register(mpc); 342100979Srwatson break; 343100979Srwatson case MOD_UNLOAD: 344100979Srwatson /* Don't unregister the module if it was never registered. */ 345100979Srwatson if ((mpc->mpc_runtime_flags & MPC_RUNTIME_FLAG_REGISTERED) 346100979Srwatson != 0) 347100979Srwatson error = mac_policy_unregister(mpc); 348100979Srwatson else 349100979Srwatson error = 0; 350100979Srwatson break; 351100979Srwatson default: 352100979Srwatson break; 353100979Srwatson } 354100979Srwatson 355100979Srwatson return (error); 356100979Srwatson} 357100979Srwatson 358100979Srwatsonstatic int 359100979Srwatsonmac_policy_register(struct mac_policy_conf *mpc) 360100979Srwatson{ 361100979Srwatson struct mac_policy_conf *tmpc; 362100979Srwatson struct mac_policy_ops *ops; 363100979Srwatson struct mac_policy_op_entry *mpe; 364100979Srwatson int slot; 365100979Srwatson 366100979Srwatson MALLOC(mpc->mpc_ops, struct mac_policy_ops *, sizeof(*ops), M_MACOPVEC, 367100979Srwatson M_WAITOK | M_ZERO); 368100979Srwatson for (mpe = mpc->mpc_entries; mpe->mpe_constant != MAC_OP_LAST; mpe++) { 369100979Srwatson switch (mpe->mpe_constant) { 370100979Srwatson case MAC_OP_LAST: 371100979Srwatson /* 372100979Srwatson * Doesn't actually happen, but this allows checking 373100979Srwatson * that all enumerated values are handled. 374100979Srwatson */ 375100979Srwatson break; 376100979Srwatson case MAC_DESTROY: 377100979Srwatson mpc->mpc_ops->mpo_destroy = 378100979Srwatson mpe->mpe_function; 379100979Srwatson break; 380100979Srwatson case MAC_INIT: 381100979Srwatson mpc->mpc_ops->mpo_init = 382100979Srwatson mpe->mpe_function; 383100979Srwatson break; 384102123Srwatson case MAC_SYSCALL: 385102123Srwatson mpc->mpc_ops->mpo_syscall = 386102123Srwatson mpe->mpe_function; 387102123Srwatson break; 388100979Srwatson case MAC_INIT_BPFDESC: 389100979Srwatson mpc->mpc_ops->mpo_init_bpfdesc = 390100979Srwatson mpe->mpe_function; 391100979Srwatson break; 392100979Srwatson case MAC_INIT_CRED: 393100979Srwatson mpc->mpc_ops->mpo_init_cred = 394100979Srwatson mpe->mpe_function; 395100979Srwatson break; 396100979Srwatson case MAC_INIT_DEVFSDIRENT: 397100979Srwatson mpc->mpc_ops->mpo_init_devfsdirent = 398100979Srwatson mpe->mpe_function; 399100979Srwatson break; 400100979Srwatson case MAC_INIT_IFNET: 401100979Srwatson mpc->mpc_ops->mpo_init_ifnet = 402100979Srwatson mpe->mpe_function; 403100979Srwatson break; 404100979Srwatson case MAC_INIT_IPQ: 405100979Srwatson mpc->mpc_ops->mpo_init_ipq = 406100979Srwatson mpe->mpe_function; 407100979Srwatson break; 408100979Srwatson case MAC_INIT_MBUF: 409100979Srwatson mpc->mpc_ops->mpo_init_mbuf = 410100979Srwatson mpe->mpe_function; 411100979Srwatson break; 412100979Srwatson case MAC_INIT_MOUNT: 413100979Srwatson mpc->mpc_ops->mpo_init_mount = 414100979Srwatson mpe->mpe_function; 415100979Srwatson break; 416100979Srwatson case MAC_INIT_PIPE: 417100979Srwatson mpc->mpc_ops->mpo_init_pipe = 418100979Srwatson mpe->mpe_function; 419100979Srwatson break; 420100979Srwatson case MAC_INIT_SOCKET: 421100979Srwatson mpc->mpc_ops->mpo_init_socket = 422100979Srwatson mpe->mpe_function; 423100979Srwatson break; 424100979Srwatson case MAC_INIT_TEMP: 425100979Srwatson mpc->mpc_ops->mpo_init_temp = 426100979Srwatson mpe->mpe_function; 427100979Srwatson break; 428100979Srwatson case MAC_INIT_VNODE: 429100979Srwatson mpc->mpc_ops->mpo_init_vnode = 430100979Srwatson mpe->mpe_function; 431100979Srwatson break; 432100979Srwatson case MAC_DESTROY_BPFDESC: 433100979Srwatson mpc->mpc_ops->mpo_destroy_bpfdesc = 434100979Srwatson mpe->mpe_function; 435100979Srwatson break; 436100979Srwatson case MAC_DESTROY_CRED: 437100979Srwatson mpc->mpc_ops->mpo_destroy_cred = 438100979Srwatson mpe->mpe_function; 439100979Srwatson break; 440100979Srwatson case MAC_DESTROY_DEVFSDIRENT: 441100979Srwatson mpc->mpc_ops->mpo_destroy_devfsdirent = 442100979Srwatson mpe->mpe_function; 443100979Srwatson break; 444100979Srwatson case MAC_DESTROY_IFNET: 445100979Srwatson mpc->mpc_ops->mpo_destroy_ifnet = 446100979Srwatson mpe->mpe_function; 447100979Srwatson break; 448100979Srwatson case MAC_DESTROY_IPQ: 449100979Srwatson mpc->mpc_ops->mpo_destroy_ipq = 450100979Srwatson mpe->mpe_function; 451100979Srwatson break; 452100979Srwatson case MAC_DESTROY_MBUF: 453100979Srwatson mpc->mpc_ops->mpo_destroy_mbuf = 454100979Srwatson mpe->mpe_function; 455100979Srwatson break; 456100979Srwatson case MAC_DESTROY_MOUNT: 457100979Srwatson mpc->mpc_ops->mpo_destroy_mount = 458100979Srwatson mpe->mpe_function; 459100979Srwatson break; 460100979Srwatson case MAC_DESTROY_PIPE: 461100979Srwatson mpc->mpc_ops->mpo_destroy_pipe = 462100979Srwatson mpe->mpe_function; 463100979Srwatson break; 464100979Srwatson case MAC_DESTROY_SOCKET: 465100979Srwatson mpc->mpc_ops->mpo_destroy_socket = 466100979Srwatson mpe->mpe_function; 467100979Srwatson break; 468100979Srwatson case MAC_DESTROY_TEMP: 469100979Srwatson mpc->mpc_ops->mpo_destroy_temp = 470100979Srwatson mpe->mpe_function; 471100979Srwatson break; 472100979Srwatson case MAC_DESTROY_VNODE: 473100979Srwatson mpc->mpc_ops->mpo_destroy_vnode = 474100979Srwatson mpe->mpe_function; 475100979Srwatson break; 476100979Srwatson case MAC_EXTERNALIZE: 477100979Srwatson mpc->mpc_ops->mpo_externalize = 478100979Srwatson mpe->mpe_function; 479100979Srwatson break; 480100979Srwatson case MAC_INTERNALIZE: 481100979Srwatson mpc->mpc_ops->mpo_internalize = 482100979Srwatson mpe->mpe_function; 483100979Srwatson break; 484100979Srwatson case MAC_CREATE_DEVFS_DEVICE: 485100979Srwatson mpc->mpc_ops->mpo_create_devfs_device = 486100979Srwatson mpe->mpe_function; 487100979Srwatson break; 488100979Srwatson case MAC_CREATE_DEVFS_DIRECTORY: 489100979Srwatson mpc->mpc_ops->mpo_create_devfs_directory = 490100979Srwatson mpe->mpe_function; 491100979Srwatson break; 492100979Srwatson case MAC_CREATE_DEVFS_VNODE: 493100979Srwatson mpc->mpc_ops->mpo_create_devfs_vnode = 494100979Srwatson mpe->mpe_function; 495100979Srwatson break; 496100979Srwatson case MAC_STDCREATEVNODE_EA: 497100979Srwatson mpc->mpc_ops->mpo_stdcreatevnode_ea = 498100979Srwatson mpe->mpe_function; 499100979Srwatson break; 500100979Srwatson case MAC_CREATE_VNODE: 501100979Srwatson mpc->mpc_ops->mpo_create_vnode = 502100979Srwatson mpe->mpe_function; 503100979Srwatson break; 504100979Srwatson case MAC_CREATE_MOUNT: 505100979Srwatson mpc->mpc_ops->mpo_create_mount = 506100979Srwatson mpe->mpe_function; 507100979Srwatson break; 508100979Srwatson case MAC_CREATE_ROOT_MOUNT: 509100979Srwatson mpc->mpc_ops->mpo_create_root_mount = 510100979Srwatson mpe->mpe_function; 511100979Srwatson break; 512100979Srwatson case MAC_RELABEL_VNODE: 513100979Srwatson mpc->mpc_ops->mpo_relabel_vnode = 514100979Srwatson mpe->mpe_function; 515100979Srwatson break; 516100979Srwatson case MAC_UPDATE_DEVFSDIRENT: 517100979Srwatson mpc->mpc_ops->mpo_update_devfsdirent = 518100979Srwatson mpe->mpe_function; 519100979Srwatson break; 520100979Srwatson case MAC_UPDATE_PROCFSVNODE: 521100979Srwatson mpc->mpc_ops->mpo_update_procfsvnode = 522100979Srwatson mpe->mpe_function; 523100979Srwatson break; 524100979Srwatson case MAC_UPDATE_VNODE_FROM_EXTATTR: 525100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_extattr = 526100979Srwatson mpe->mpe_function; 527100979Srwatson break; 528100979Srwatson case MAC_UPDATE_VNODE_FROM_EXTERNALIZED: 529100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_externalized = 530100979Srwatson mpe->mpe_function; 531100979Srwatson break; 532100979Srwatson case MAC_UPDATE_VNODE_FROM_MOUNT: 533100979Srwatson mpc->mpc_ops->mpo_update_vnode_from_mount = 534100979Srwatson mpe->mpe_function; 535100979Srwatson break; 536100979Srwatson case MAC_CREATE_MBUF_FROM_SOCKET: 537100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_socket = 538100979Srwatson mpe->mpe_function; 539100979Srwatson break; 540100979Srwatson case MAC_CREATE_PIPE: 541100979Srwatson mpc->mpc_ops->mpo_create_pipe = 542100979Srwatson mpe->mpe_function; 543100979Srwatson break; 544100979Srwatson case MAC_CREATE_SOCKET: 545100979Srwatson mpc->mpc_ops->mpo_create_socket = 546100979Srwatson mpe->mpe_function; 547100979Srwatson break; 548100979Srwatson case MAC_CREATE_SOCKET_FROM_SOCKET: 549100979Srwatson mpc->mpc_ops->mpo_create_socket_from_socket = 550100979Srwatson mpe->mpe_function; 551100979Srwatson break; 552100979Srwatson case MAC_RELABEL_PIPE: 553100979Srwatson mpc->mpc_ops->mpo_relabel_pipe = 554100979Srwatson mpe->mpe_function; 555100979Srwatson break; 556100979Srwatson case MAC_RELABEL_SOCKET: 557100979Srwatson mpc->mpc_ops->mpo_relabel_socket = 558100979Srwatson mpe->mpe_function; 559100979Srwatson break; 560100979Srwatson case MAC_SET_SOCKET_PEER_FROM_MBUF: 561100979Srwatson mpc->mpc_ops->mpo_set_socket_peer_from_mbuf = 562100979Srwatson mpe->mpe_function; 563100979Srwatson break; 564100979Srwatson case MAC_SET_SOCKET_PEER_FROM_SOCKET: 565100979Srwatson mpc->mpc_ops->mpo_set_socket_peer_from_socket = 566100979Srwatson mpe->mpe_function; 567100979Srwatson break; 568100979Srwatson case MAC_CREATE_BPFDESC: 569100979Srwatson mpc->mpc_ops->mpo_create_bpfdesc = 570100979Srwatson mpe->mpe_function; 571100979Srwatson break; 572100979Srwatson case MAC_CREATE_DATAGRAM_FROM_IPQ: 573100979Srwatson mpc->mpc_ops->mpo_create_datagram_from_ipq = 574100979Srwatson mpe->mpe_function; 575100979Srwatson break; 576100979Srwatson case MAC_CREATE_FRAGMENT: 577100979Srwatson mpc->mpc_ops->mpo_create_fragment = 578100979Srwatson mpe->mpe_function; 579100979Srwatson break; 580100979Srwatson case MAC_CREATE_IFNET: 581100979Srwatson mpc->mpc_ops->mpo_create_ifnet = 582100979Srwatson mpe->mpe_function; 583100979Srwatson break; 584100979Srwatson case MAC_CREATE_IPQ: 585100979Srwatson mpc->mpc_ops->mpo_create_ipq = 586100979Srwatson mpe->mpe_function; 587100979Srwatson break; 588100979Srwatson case MAC_CREATE_MBUF_FROM_MBUF: 589100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_mbuf = 590100979Srwatson mpe->mpe_function; 591100979Srwatson break; 592100979Srwatson case MAC_CREATE_MBUF_LINKLAYER: 593100979Srwatson mpc->mpc_ops->mpo_create_mbuf_linklayer = 594100979Srwatson mpe->mpe_function; 595100979Srwatson break; 596100979Srwatson case MAC_CREATE_MBUF_FROM_BPFDESC: 597100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_bpfdesc = 598100979Srwatson mpe->mpe_function; 599100979Srwatson break; 600100979Srwatson case MAC_CREATE_MBUF_FROM_IFNET: 601100979Srwatson mpc->mpc_ops->mpo_create_mbuf_from_ifnet = 602100979Srwatson mpe->mpe_function; 603100979Srwatson break; 604100979Srwatson case MAC_CREATE_MBUF_MULTICAST_ENCAP: 605100979Srwatson mpc->mpc_ops->mpo_create_mbuf_multicast_encap = 606100979Srwatson mpe->mpe_function; 607100979Srwatson break; 608100979Srwatson case MAC_CREATE_MBUF_NETLAYER: 609100979Srwatson mpc->mpc_ops->mpo_create_mbuf_netlayer = 610100979Srwatson mpe->mpe_function; 611100979Srwatson break; 612100979Srwatson case MAC_FRAGMENT_MATCH: 613100979Srwatson mpc->mpc_ops->mpo_fragment_match = 614100979Srwatson mpe->mpe_function; 615100979Srwatson break; 616100979Srwatson case MAC_RELABEL_IFNET: 617100979Srwatson mpc->mpc_ops->mpo_relabel_ifnet = 618100979Srwatson mpe->mpe_function; 619100979Srwatson break; 620100979Srwatson case MAC_UPDATE_IPQ: 621100979Srwatson mpc->mpc_ops->mpo_update_ipq = 622100979Srwatson mpe->mpe_function; 623100979Srwatson break; 624100979Srwatson case MAC_CREATE_CRED: 625100979Srwatson mpc->mpc_ops->mpo_create_cred = 626100979Srwatson mpe->mpe_function; 627100979Srwatson break; 628100979Srwatson case MAC_EXECVE_TRANSITION: 629100979Srwatson mpc->mpc_ops->mpo_execve_transition = 630100979Srwatson mpe->mpe_function; 631100979Srwatson break; 632100979Srwatson case MAC_EXECVE_WILL_TRANSITION: 633100979Srwatson mpc->mpc_ops->mpo_execve_will_transition = 634100979Srwatson mpe->mpe_function; 635100979Srwatson break; 636100979Srwatson case MAC_CREATE_PROC0: 637100979Srwatson mpc->mpc_ops->mpo_create_proc0 = mpe->mpe_function; 638100979Srwatson break; 639100979Srwatson case MAC_CREATE_PROC1: 640100979Srwatson mpc->mpc_ops->mpo_create_proc1 = mpe->mpe_function; 641100979Srwatson break; 642100979Srwatson case MAC_RELABEL_CRED: 643100979Srwatson mpc->mpc_ops->mpo_relabel_cred = 644100979Srwatson mpe->mpe_function; 645100979Srwatson break; 646100979Srwatson case MAC_CHECK_BPFDESC_RECEIVE: 647100979Srwatson mpc->mpc_ops->mpo_check_bpfdesc_receive = 648100979Srwatson mpe->mpe_function; 649100979Srwatson break; 650100979Srwatson case MAC_CHECK_CRED_RELABEL: 651100979Srwatson mpc->mpc_ops->mpo_check_cred_relabel = 652100979Srwatson mpe->mpe_function; 653100979Srwatson break; 654100979Srwatson case MAC_CHECK_CRED_VISIBLE: 655100979Srwatson mpc->mpc_ops->mpo_check_cred_visible = 656100979Srwatson mpe->mpe_function; 657100979Srwatson break; 658100979Srwatson case MAC_CHECK_IFNET_RELABEL: 659100979Srwatson mpc->mpc_ops->mpo_check_ifnet_relabel = 660100979Srwatson mpe->mpe_function; 661100979Srwatson break; 662100979Srwatson case MAC_CHECK_IFNET_TRANSMIT: 663100979Srwatson mpc->mpc_ops->mpo_check_ifnet_transmit = 664100979Srwatson mpe->mpe_function; 665100979Srwatson break; 666100979Srwatson case MAC_CHECK_MOUNT_STAT: 667100979Srwatson mpc->mpc_ops->mpo_check_mount_stat = 668100979Srwatson mpe->mpe_function; 669100979Srwatson break; 670100979Srwatson case MAC_CHECK_PIPE_IOCTL: 671100979Srwatson mpc->mpc_ops->mpo_check_pipe_ioctl = 672100979Srwatson mpe->mpe_function; 673100979Srwatson break; 674102115Srwatson case MAC_CHECK_PIPE_POLL: 675102115Srwatson mpc->mpc_ops->mpo_check_pipe_poll = 676100979Srwatson mpe->mpe_function; 677100979Srwatson break; 678102115Srwatson case MAC_CHECK_PIPE_READ: 679102115Srwatson mpc->mpc_ops->mpo_check_pipe_read = 680102115Srwatson mpe->mpe_function; 681102115Srwatson break; 682100979Srwatson case MAC_CHECK_PIPE_RELABEL: 683100979Srwatson mpc->mpc_ops->mpo_check_pipe_relabel = 684100979Srwatson mpe->mpe_function; 685100979Srwatson break; 686102115Srwatson case MAC_CHECK_PIPE_STAT: 687102115Srwatson mpc->mpc_ops->mpo_check_pipe_stat = 688102115Srwatson mpe->mpe_function; 689102115Srwatson break; 690102115Srwatson case MAC_CHECK_PIPE_WRITE: 691102115Srwatson mpc->mpc_ops->mpo_check_pipe_write = 692102115Srwatson mpe->mpe_function; 693102115Srwatson break; 694100979Srwatson case MAC_CHECK_PROC_DEBUG: 695100979Srwatson mpc->mpc_ops->mpo_check_proc_debug = 696100979Srwatson mpe->mpe_function; 697100979Srwatson break; 698100979Srwatson case MAC_CHECK_PROC_SCHED: 699100979Srwatson mpc->mpc_ops->mpo_check_proc_sched = 700100979Srwatson mpe->mpe_function; 701100979Srwatson break; 702100979Srwatson case MAC_CHECK_PROC_SIGNAL: 703100979Srwatson mpc->mpc_ops->mpo_check_proc_signal = 704100979Srwatson mpe->mpe_function; 705100979Srwatson break; 706100979Srwatson case MAC_CHECK_SOCKET_BIND: 707100979Srwatson mpc->mpc_ops->mpo_check_socket_bind = 708100979Srwatson mpe->mpe_function; 709100979Srwatson break; 710100979Srwatson case MAC_CHECK_SOCKET_CONNECT: 711100979Srwatson mpc->mpc_ops->mpo_check_socket_connect = 712100979Srwatson mpe->mpe_function; 713100979Srwatson break; 714101933Srwatson case MAC_CHECK_SOCKET_DELIVER: 715101933Srwatson mpc->mpc_ops->mpo_check_socket_deliver = 716101933Srwatson mpe->mpe_function; 717101933Srwatson break; 718100979Srwatson case MAC_CHECK_SOCKET_LISTEN: 719100979Srwatson mpc->mpc_ops->mpo_check_socket_listen = 720100979Srwatson mpe->mpe_function; 721100979Srwatson break; 722100979Srwatson case MAC_CHECK_SOCKET_RELABEL: 723100979Srwatson mpc->mpc_ops->mpo_check_socket_relabel = 724100979Srwatson mpe->mpe_function; 725100979Srwatson break; 726100979Srwatson case MAC_CHECK_SOCKET_VISIBLE: 727100979Srwatson mpc->mpc_ops->mpo_check_socket_visible = 728100979Srwatson mpe->mpe_function; 729100979Srwatson break; 730100979Srwatson case MAC_CHECK_VNODE_ACCESS: 731100979Srwatson mpc->mpc_ops->mpo_check_vnode_access = 732100979Srwatson mpe->mpe_function; 733100979Srwatson break; 734100979Srwatson case MAC_CHECK_VNODE_CHDIR: 735100979Srwatson mpc->mpc_ops->mpo_check_vnode_chdir = 736100979Srwatson mpe->mpe_function; 737100979Srwatson break; 738100979Srwatson case MAC_CHECK_VNODE_CHROOT: 739100979Srwatson mpc->mpc_ops->mpo_check_vnode_chroot = 740100979Srwatson mpe->mpe_function; 741100979Srwatson break; 742100979Srwatson case MAC_CHECK_VNODE_CREATE: 743100979Srwatson mpc->mpc_ops->mpo_check_vnode_create = 744100979Srwatson mpe->mpe_function; 745100979Srwatson break; 746100979Srwatson case MAC_CHECK_VNODE_DELETE: 747100979Srwatson mpc->mpc_ops->mpo_check_vnode_delete = 748100979Srwatson mpe->mpe_function; 749100979Srwatson break; 750100979Srwatson case MAC_CHECK_VNODE_DELETEACL: 751100979Srwatson mpc->mpc_ops->mpo_check_vnode_deleteacl = 752100979Srwatson mpe->mpe_function; 753100979Srwatson break; 754100979Srwatson case MAC_CHECK_VNODE_EXEC: 755100979Srwatson mpc->mpc_ops->mpo_check_vnode_exec = 756100979Srwatson mpe->mpe_function; 757100979Srwatson break; 758100979Srwatson case MAC_CHECK_VNODE_GETACL: 759100979Srwatson mpc->mpc_ops->mpo_check_vnode_getacl = 760100979Srwatson mpe->mpe_function; 761100979Srwatson break; 762100979Srwatson case MAC_CHECK_VNODE_GETEXTATTR: 763100979Srwatson mpc->mpc_ops->mpo_check_vnode_getextattr = 764100979Srwatson mpe->mpe_function; 765100979Srwatson break; 766100979Srwatson case MAC_CHECK_VNODE_LOOKUP: 767100979Srwatson mpc->mpc_ops->mpo_check_vnode_lookup = 768100979Srwatson mpe->mpe_function; 769100979Srwatson break; 770100979Srwatson case MAC_CHECK_VNODE_MMAP_PERMS: 771100979Srwatson mpc->mpc_ops->mpo_check_vnode_mmap_perms = 772100979Srwatson mpe->mpe_function; 773100979Srwatson break; 774100979Srwatson case MAC_CHECK_VNODE_OPEN: 775100979Srwatson mpc->mpc_ops->mpo_check_vnode_open = 776100979Srwatson mpe->mpe_function; 777100979Srwatson break; 778102112Srwatson case MAC_CHECK_VNODE_POLL: 779102112Srwatson mpc->mpc_ops->mpo_check_vnode_poll = 780102112Srwatson mpe->mpe_function; 781102112Srwatson break; 782102112Srwatson case MAC_CHECK_VNODE_READ: 783102112Srwatson mpc->mpc_ops->mpo_check_vnode_read = 784102112Srwatson mpe->mpe_function; 785102112Srwatson break; 786100979Srwatson case MAC_CHECK_VNODE_READDIR: 787100979Srwatson mpc->mpc_ops->mpo_check_vnode_readdir = 788100979Srwatson mpe->mpe_function; 789100979Srwatson break; 790100979Srwatson case MAC_CHECK_VNODE_READLINK: 791100979Srwatson mpc->mpc_ops->mpo_check_vnode_readlink = 792100979Srwatson mpe->mpe_function; 793100979Srwatson break; 794100979Srwatson case MAC_CHECK_VNODE_RELABEL: 795100979Srwatson mpc->mpc_ops->mpo_check_vnode_relabel = 796100979Srwatson mpe->mpe_function; 797100979Srwatson break; 798100979Srwatson case MAC_CHECK_VNODE_RENAME_FROM: 799100979Srwatson mpc->mpc_ops->mpo_check_vnode_rename_from = 800100979Srwatson mpe->mpe_function; 801100979Srwatson break; 802100979Srwatson case MAC_CHECK_VNODE_RENAME_TO: 803100979Srwatson mpc->mpc_ops->mpo_check_vnode_rename_to = 804100979Srwatson mpe->mpe_function; 805100979Srwatson break; 806100979Srwatson case MAC_CHECK_VNODE_REVOKE: 807100979Srwatson mpc->mpc_ops->mpo_check_vnode_revoke = 808100979Srwatson mpe->mpe_function; 809100979Srwatson break; 810100979Srwatson case MAC_CHECK_VNODE_SETACL: 811100979Srwatson mpc->mpc_ops->mpo_check_vnode_setacl = 812100979Srwatson mpe->mpe_function; 813100979Srwatson break; 814100979Srwatson case MAC_CHECK_VNODE_SETEXTATTR: 815100979Srwatson mpc->mpc_ops->mpo_check_vnode_setextattr = 816100979Srwatson mpe->mpe_function; 817100979Srwatson break; 818100979Srwatson case MAC_CHECK_VNODE_SETFLAGS: 819100979Srwatson mpc->mpc_ops->mpo_check_vnode_setflags = 820100979Srwatson mpe->mpe_function; 821100979Srwatson break; 822100979Srwatson case MAC_CHECK_VNODE_SETMODE: 823100979Srwatson mpc->mpc_ops->mpo_check_vnode_setmode = 824100979Srwatson mpe->mpe_function; 825100979Srwatson break; 826100979Srwatson case MAC_CHECK_VNODE_SETOWNER: 827100979Srwatson mpc->mpc_ops->mpo_check_vnode_setowner = 828100979Srwatson mpe->mpe_function; 829100979Srwatson break; 830100979Srwatson case MAC_CHECK_VNODE_SETUTIMES: 831100979Srwatson mpc->mpc_ops->mpo_check_vnode_setutimes = 832100979Srwatson mpe->mpe_function; 833100979Srwatson break; 834100979Srwatson case MAC_CHECK_VNODE_STAT: 835100979Srwatson mpc->mpc_ops->mpo_check_vnode_stat = 836100979Srwatson mpe->mpe_function; 837100979Srwatson break; 838102112Srwatson case MAC_CHECK_VNODE_WRITE: 839102112Srwatson mpc->mpc_ops->mpo_check_vnode_write = 840102112Srwatson mpe->mpe_function; 841102112Srwatson break; 842100979Srwatson/* 843100979Srwatson default: 844100979Srwatson printf("MAC policy `%s': unknown operation %d\n", 845100979Srwatson mpc->mpc_name, mpe->mpe_constant); 846100979Srwatson return (EINVAL); 847100979Srwatson*/ 848100979Srwatson } 849100979Srwatson } 850100979Srwatson MAC_POLICY_LIST_LOCK(); 851100979Srwatson if (mac_policy_list_busy > 0) { 852100979Srwatson MAC_POLICY_LIST_UNLOCK(); 853100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 854100979Srwatson mpc->mpc_ops = NULL; 855100979Srwatson return (EBUSY); 856100979Srwatson } 857100979Srwatson LIST_FOREACH(tmpc, &mac_policy_list, mpc_list) { 858100979Srwatson if (strcmp(tmpc->mpc_name, mpc->mpc_name) == 0) { 859100979Srwatson MAC_POLICY_LIST_UNLOCK(); 860100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 861100979Srwatson mpc->mpc_ops = NULL; 862100979Srwatson return (EEXIST); 863100979Srwatson } 864100979Srwatson } 865100979Srwatson if (mpc->mpc_field_off != NULL) { 866100979Srwatson slot = ffs(mac_policy_offsets_free); 867100979Srwatson if (slot == 0) { 868100979Srwatson MAC_POLICY_LIST_UNLOCK(); 869100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 870100979Srwatson mpc->mpc_ops = NULL; 871100979Srwatson return (ENOMEM); 872100979Srwatson } 873100979Srwatson slot--; 874100979Srwatson mac_policy_offsets_free &= ~(1 << slot); 875100979Srwatson *mpc->mpc_field_off = slot; 876100979Srwatson } 877100979Srwatson mpc->mpc_runtime_flags |= MPC_RUNTIME_FLAG_REGISTERED; 878100979Srwatson LIST_INSERT_HEAD(&mac_policy_list, mpc, mpc_list); 879100979Srwatson 880100979Srwatson /* Per-policy initialization. */ 881100979Srwatson if (mpc->mpc_ops->mpo_init != NULL) 882100979Srwatson (*(mpc->mpc_ops->mpo_init))(mpc); 883100979Srwatson MAC_POLICY_LIST_UNLOCK(); 884100979Srwatson 885100979Srwatson printf("Security policy loaded: %s (%s)\n", mpc->mpc_fullname, 886100979Srwatson mpc->mpc_name); 887100979Srwatson 888100979Srwatson return (0); 889100979Srwatson} 890100979Srwatson 891100979Srwatsonstatic int 892100979Srwatsonmac_policy_unregister(struct mac_policy_conf *mpc) 893100979Srwatson{ 894100979Srwatson 895100979Srwatson#if 0 896100979Srwatson /* 897100979Srwatson * Don't allow unloading modules with private data. 898100979Srwatson */ 899100979Srwatson if (mpc->mpc_field_off != NULL) 900100979Srwatson return (EBUSY); 901100979Srwatson#endif 902100979Srwatson if ((mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_UNLOADOK) == 0) 903100979Srwatson return (EBUSY); 904100979Srwatson MAC_POLICY_LIST_LOCK(); 905100979Srwatson if (mac_policy_list_busy > 0) { 906100979Srwatson MAC_POLICY_LIST_UNLOCK(); 907100979Srwatson return (EBUSY); 908100979Srwatson } 909100979Srwatson if (mpc->mpc_ops->mpo_destroy != NULL) 910100979Srwatson (*(mpc->mpc_ops->mpo_destroy))(mpc); 911100979Srwatson 912100979Srwatson LIST_REMOVE(mpc, mpc_list); 913100979Srwatson MAC_POLICY_LIST_UNLOCK(); 914100979Srwatson 915100979Srwatson FREE(mpc->mpc_ops, M_MACOPVEC); 916100979Srwatson mpc->mpc_ops = NULL; 917100979Srwatson 918100979Srwatson printf("Security policy unload: %s (%s)\n", mpc->mpc_fullname, 919100979Srwatson mpc->mpc_name); 920100979Srwatson 921100979Srwatson return (0); 922100979Srwatson} 923100979Srwatson 924100979Srwatson/* 925100979Srwatson * Define an error value precedence, and given two arguments, selects the 926100979Srwatson * value with the higher precedence. 927100979Srwatson */ 928100979Srwatsonstatic int 929100979Srwatsonerror_select(int error1, int error2) 930100979Srwatson{ 931100979Srwatson 932100979Srwatson /* Certain decision-making errors take top priority. */ 933100979Srwatson if (error1 == EDEADLK || error2 == EDEADLK) 934100979Srwatson return (EDEADLK); 935100979Srwatson 936100979Srwatson /* Invalid arguments should be reported where possible. */ 937100979Srwatson if (error1 == EINVAL || error2 == EINVAL) 938100979Srwatson return (EINVAL); 939100979Srwatson 940100979Srwatson /* Precedence goes to "visibility", with both process and file. */ 941100979Srwatson if (error1 == ESRCH || error2 == ESRCH) 942100979Srwatson return (ESRCH); 943100979Srwatson 944100979Srwatson if (error1 == ENOENT || error2 == ENOENT) 945100979Srwatson return (ENOENT); 946100979Srwatson 947100979Srwatson /* Precedence goes to DAC/MAC protections. */ 948100979Srwatson if (error1 == EACCES || error2 == EACCES) 949100979Srwatson return (EACCES); 950100979Srwatson 951100979Srwatson /* Precedence goes to privilege. */ 952100979Srwatson if (error1 == EPERM || error2 == EPERM) 953100979Srwatson return (EPERM); 954100979Srwatson 955100979Srwatson /* Precedence goes to error over success; otherwise, arbitrary. */ 956100979Srwatson if (error1 != 0) 957100979Srwatson return (error1); 958100979Srwatson return (error2); 959100979Srwatson} 960100979Srwatson 961100979Srwatsonvoid 962100979Srwatsonmac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp) 963100979Srwatson{ 964100979Srwatson 965100979Srwatson MAC_PERFORM(update_devfsdirent, de, &de->de_label, vp, &vp->v_label); 966100979Srwatson} 967100979Srwatson 968100979Srwatsonvoid 969100979Srwatsonmac_update_procfsvnode(struct vnode *vp, struct ucred *cred) 970100979Srwatson{ 971100979Srwatson 972100979Srwatson MAC_PERFORM(update_procfsvnode, vp, &vp->v_label, cred); 973100979Srwatson} 974100979Srwatson 975100979Srwatson/* 976100979Srwatson * Support callout for policies that manage their own externalization 977100979Srwatson * using extended attributes. 978100979Srwatson */ 979100979Srwatsonstatic int 980100979Srwatsonmac_update_vnode_from_extattr(struct vnode *vp, struct mount *mp) 981100979Srwatson{ 982100979Srwatson int error; 983100979Srwatson 984100979Srwatson MAC_CHECK(update_vnode_from_extattr, vp, &vp->v_label, mp, 985100979Srwatson &mp->mnt_fslabel); 986100979Srwatson 987100979Srwatson return (error); 988100979Srwatson} 989100979Srwatson 990100979Srwatson/* 991100979Srwatson * Given an externalized mac label, internalize it and stamp it on a 992100979Srwatson * vnode. 993100979Srwatson */ 994100979Srwatsonstatic int 995100979Srwatsonmac_update_vnode_from_externalized(struct vnode *vp, struct mac *extmac) 996100979Srwatson{ 997100979Srwatson int error; 998100979Srwatson 999100979Srwatson MAC_CHECK(update_vnode_from_externalized, vp, &vp->v_label, extmac); 1000100979Srwatson 1001100979Srwatson return (error); 1002100979Srwatson} 1003100979Srwatson 1004100979Srwatson/* 1005100979Srwatson * Call out to individual policies to update the label in a vnode from 1006100979Srwatson * the mountpoint. 1007100979Srwatson */ 1008100979Srwatsonvoid 1009100979Srwatsonmac_update_vnode_from_mount(struct vnode *vp, struct mount *mp) 1010100979Srwatson{ 1011100979Srwatson 1012100979Srwatson MAC_PERFORM(update_vnode_from_mount, vp, &vp->v_label, mp, 1013100979Srwatson &mp->mnt_fslabel); 1014100979Srwatson 1015101308Sjeff ASSERT_VOP_LOCKED(vp, "mac_update_vnode_from_mount"); 1016100979Srwatson if (mac_cache_fslabel_in_vnode) 1017101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1018100979Srwatson} 1019100979Srwatson 1020100979Srwatson/* 1021100979Srwatson * Implementation of VOP_REFRESHLABEL() that relies on extended attributes 1022100979Srwatson * to store label data. Can be referenced by filesystems supporting 1023100979Srwatson * extended attributes. 1024100979Srwatson */ 1025100979Srwatsonint 1026100979Srwatsonvop_stdrefreshlabel_ea(struct vop_refreshlabel_args *ap) 1027100979Srwatson{ 1028100979Srwatson struct vnode *vp = ap->a_vp; 1029100979Srwatson struct mac extmac; 1030100979Srwatson int buflen, error; 1031100979Srwatson 1032100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdrefreshlabel_ea"); 1033100979Srwatson 1034100979Srwatson /* 1035100979Srwatson * Call out to external policies first. Order doesn't really 1036100979Srwatson * matter, as long as failure of one assures failure of all. 1037100979Srwatson */ 1038100979Srwatson error = mac_update_vnode_from_extattr(vp, vp->v_mount); 1039100979Srwatson if (error) 1040100979Srwatson return (error); 1041100979Srwatson 1042100979Srwatson buflen = sizeof(extmac); 1043100979Srwatson error = vn_extattr_get(vp, IO_NODELOCKED, 1044100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, &buflen, 1045100979Srwatson (char *)&extmac, curthread); 1046100979Srwatson switch (error) { 1047100979Srwatson case 0: 1048100979Srwatson /* Got it */ 1049100979Srwatson break; 1050100979Srwatson 1051100979Srwatson case ENOATTR: 1052100979Srwatson /* 1053100979Srwatson * Use the label from the mount point. 1054100979Srwatson */ 1055100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1056100979Srwatson return (0); 1057100979Srwatson 1058100979Srwatson case EOPNOTSUPP: 1059100979Srwatson default: 1060100979Srwatson /* Fail horribly. */ 1061100979Srwatson return (error); 1062100979Srwatson } 1063100979Srwatson 1064100979Srwatson if (buflen != sizeof(extmac)) 1065100979Srwatson error = EPERM; /* Fail very closed. */ 1066100979Srwatson if (error == 0) 1067100979Srwatson error = mac_update_vnode_from_externalized(vp, &extmac); 1068100979Srwatson if (error == 0) 1069101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 1070100979Srwatson else { 1071100979Srwatson struct vattr va; 1072100979Srwatson 1073100979Srwatson printf("Corrupted label on %s", 1074100979Srwatson vp->v_mount->mnt_stat.f_mntonname); 1075100979Srwatson if (VOP_GETATTR(vp, &va, curthread->td_ucred, curthread) == 0) 1076100979Srwatson printf(" inum %ld", va.va_fileid); 1077100979Srwatson if (mac_debug_label_fallback) { 1078100979Srwatson printf(", falling back.\n"); 1079100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1080100979Srwatson error = 0; 1081100979Srwatson } else { 1082100979Srwatson printf(".\n"); 1083100979Srwatson error = EPERM; 1084100979Srwatson } 1085100979Srwatson } 1086100979Srwatson 1087100979Srwatson return (error); 1088100979Srwatson} 1089100979Srwatson 1090100979Srwatson/* 1091100979Srwatson * Make sure the vnode label is up-to-date. If EOPNOTSUPP, then we handle 1092100979Srwatson * the labeling activity outselves. Filesystems should be careful not 1093100979Srwatson * to change their minds regarding whether they support vop_refreshlabel() 1094100979Srwatson * for a vnode or not. Don't cache the vnode here, allow the file 1095100979Srwatson * system code to determine if it's safe to cache. If we update from 1096100979Srwatson * the mount, don't cache since a change to the mount label should affect 1097100979Srwatson * all vnodes. 1098100979Srwatson */ 1099100979Srwatsonstatic int 1100100979Srwatsonvn_refreshlabel(struct vnode *vp, struct ucred *cred) 1101100979Srwatson{ 1102100979Srwatson int error; 1103100979Srwatson 1104100979Srwatson ASSERT_VOP_LOCKED(vp, "vn_refreshlabel"); 1105100979Srwatson 1106100979Srwatson if (vp->v_mount == NULL) { 1107100979Srwatson/* 1108100979Srwatson Eventually, we probably want to special-case refreshing 1109100979Srwatson of deadfs vnodes, and if there's a lock-free race somewhere, 1110100979Srwatson that case might be handled here. 1111100979Srwatson 1112100979Srwatson mac_update_vnode_deadfs(vp); 1113100979Srwatson return (0); 1114100979Srwatson */ 1115100979Srwatson /* printf("vn_refreshlabel: null v_mount\n"); */ 1116100979Srwatson if (vp->v_tag != VT_NON) 1117100979Srwatson printf( 1118100979Srwatson "vn_refreshlabel: null v_mount with non-VT_NON\n"); 1119100979Srwatson return (EBADF); 1120100979Srwatson } 1121100979Srwatson 1122101308Sjeff if (vp->v_vflag & VV_CACHEDLABEL) { 1123100979Srwatson mac_vnode_label_cache_hits++; 1124100979Srwatson return (0); 1125100979Srwatson } else 1126100979Srwatson mac_vnode_label_cache_misses++; 1127100979Srwatson 1128100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1129100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1130100979Srwatson return (0); 1131100979Srwatson } 1132100979Srwatson 1133100979Srwatson error = VOP_REFRESHLABEL(vp, cred, curthread); 1134100979Srwatson switch (error) { 1135100979Srwatson case EOPNOTSUPP: 1136100979Srwatson /* 1137100979Srwatson * If labels are not supported on this vnode, fall back to 1138100979Srwatson * the label in the mount and propagate it to the vnode. 1139100979Srwatson * There should probably be some sort of policy/flag/decision 1140100979Srwatson * about doing this. 1141100979Srwatson */ 1142100979Srwatson mac_update_vnode_from_mount(vp, vp->v_mount); 1143100979Srwatson error = 0; 1144100979Srwatson default: 1145100979Srwatson return (error); 1146100979Srwatson } 1147100979Srwatson} 1148100979Srwatson 1149100979Srwatson/* 1150100979Srwatson * Helper function for file systems using the vop_std*_ea() calls. This 1151100979Srwatson * function must be called after EA service is available for the vnode, 1152100979Srwatson * but before it's hooked up to the namespace so that the node persists 1153100979Srwatson * if there's a crash, or before it can be accessed. On successful 1154100979Srwatson * commit of the label to disk (etc), do cache the label. 1155100979Srwatson */ 1156100979Srwatsonint 1157100979Srwatsonvop_stdcreatevnode_ea(struct vnode *dvp, struct vnode *tvp, struct ucred *cred) 1158100979Srwatson{ 1159100979Srwatson struct mac extmac; 1160100979Srwatson int error; 1161100979Srwatson 1162101308Sjeff ASSERT_VOP_LOCKED(tvp, "vop_stdcreatevnode_ea"); 1163100979Srwatson if ((dvp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 1164100979Srwatson mac_update_vnode_from_mount(tvp, tvp->v_mount); 1165100979Srwatson } else { 1166100979Srwatson error = vn_refreshlabel(dvp, cred); 1167100979Srwatson if (error) 1168100979Srwatson return (error); 1169100979Srwatson 1170100979Srwatson /* 1171100979Srwatson * Stick the label in the vnode. Then try to write to 1172100979Srwatson * disk. If we fail, return a failure to abort the 1173100979Srwatson * create operation. Really, this failure shouldn't 1174100979Srwatson * happen except in fairly unusual circumstances (out 1175100979Srwatson * of disk, etc). 1176100979Srwatson */ 1177100979Srwatson mac_create_vnode(cred, dvp, tvp); 1178100979Srwatson 1179100979Srwatson error = mac_stdcreatevnode_ea(tvp); 1180100979Srwatson if (error) 1181100979Srwatson return (error); 1182100979Srwatson 1183100979Srwatson /* 1184100979Srwatson * XXX: Eventually this will go away and all policies will 1185100979Srwatson * directly manage their extended attributes. 1186100979Srwatson */ 1187100979Srwatson error = mac_externalize(&tvp->v_label, &extmac); 1188100979Srwatson if (error) 1189100979Srwatson return (error); 1190100979Srwatson 1191100979Srwatson error = vn_extattr_set(tvp, IO_NODELOCKED, 1192100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 1193100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 1194100979Srwatson if (error == 0) 1195101308Sjeff tvp->v_vflag |= VV_CACHEDLABEL; 1196100979Srwatson else { 1197100979Srwatson#if 0 1198100979Srwatson /* 1199100979Srwatson * In theory, we could have fall-back behavior here. 1200100979Srwatson * It would probably be incorrect. 1201100979Srwatson */ 1202100979Srwatson#endif 1203100979Srwatson return (error); 1204100979Srwatson } 1205100979Srwatson } 1206100979Srwatson 1207100979Srwatson return (0); 1208100979Srwatson} 1209100979Srwatson 1210100979Srwatsonvoid 1211100979Srwatsonmac_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp) 1212100979Srwatson{ 1213100979Srwatson int error; 1214100979Srwatson 1215100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_execve_transition"); 1216100979Srwatson 1217100979Srwatson error = vn_refreshlabel(vp, old); 1218100979Srwatson if (error) { 1219100979Srwatson printf("mac_execve_transition: vn_refreshlabel returned %d\n", 1220100979Srwatson error); 1221100979Srwatson printf("mac_execve_transition: using old vnode label\n"); 1222100979Srwatson } 1223100979Srwatson 1224100979Srwatson MAC_PERFORM(execve_transition, old, new, vp, &vp->v_label); 1225100979Srwatson} 1226100979Srwatson 1227100979Srwatsonint 1228100979Srwatsonmac_execve_will_transition(struct ucred *old, struct vnode *vp) 1229100979Srwatson{ 1230100979Srwatson int error, result; 1231100979Srwatson 1232100979Srwatson error = vn_refreshlabel(vp, old); 1233100979Srwatson if (error) 1234100979Srwatson return (error); 1235100979Srwatson 1236100979Srwatson result = 0; 1237100979Srwatson MAC_BOOLEAN(execve_will_transition, ||, old, vp, &vp->v_label); 1238100979Srwatson 1239100979Srwatson return (result); 1240100979Srwatson} 1241100979Srwatson 1242100979Srwatsonstatic void 1243100979Srwatsonmac_init_label(struct label *label) 1244100979Srwatson{ 1245100979Srwatson 1246100979Srwatson bzero(label, sizeof(*label)); 1247100979Srwatson label->l_flags = MAC_FLAG_INITIALIZED; 1248100979Srwatson} 1249100979Srwatson 1250100979Srwatsonstatic void 1251100979Srwatsonmac_init_structmac(struct mac *mac) 1252100979Srwatson{ 1253100979Srwatson 1254100979Srwatson bzero(mac, sizeof(*mac)); 1255100979Srwatson mac->m_macflags = MAC_FLAG_INITIALIZED; 1256100979Srwatson} 1257100979Srwatson 1258100979Srwatsonstatic void 1259100979Srwatsonmac_destroy_label(struct label *label) 1260100979Srwatson{ 1261100979Srwatson 1262100979Srwatson KASSERT(label->l_flags & MAC_FLAG_INITIALIZED, 1263100979Srwatson ("destroying uninitialized label")); 1264100979Srwatson 1265100979Srwatson bzero(label, sizeof(*label)); 1266100979Srwatson /* implicit: label->l_flags &= ~MAC_FLAG_INITIALIZED; */ 1267100979Srwatson} 1268100979Srwatson 1269100979Srwatsonint 1270100979Srwatsonmac_init_mbuf(struct mbuf *m, int how) 1271100979Srwatson{ 1272100979Srwatson KASSERT(m->m_flags & M_PKTHDR, ("mac_init_mbuf on non-header mbuf")); 1273100979Srwatson 1274100979Srwatson /* "how" is one of M_(TRY|DONT)WAIT */ 1275100979Srwatson mac_init_label(&m->m_pkthdr.label); 1276100979Srwatson MAC_PERFORM(init_mbuf, m, how, &m->m_pkthdr.label); 1277101988Srwatson#ifdef MAC_DEBUG 1278100979Srwatson atomic_add_int(&nmacmbufs, 1); 1279101988Srwatson#endif 1280100979Srwatson return (0); 1281100979Srwatson} 1282100979Srwatson 1283100979Srwatsonvoid 1284100979Srwatsonmac_destroy_mbuf(struct mbuf *m) 1285100979Srwatson{ 1286100979Srwatson 1287100979Srwatson MAC_PERFORM(destroy_mbuf, m, &m->m_pkthdr.label); 1288100979Srwatson mac_destroy_label(&m->m_pkthdr.label); 1289101988Srwatson#ifdef MAC_DEBUG 1290100979Srwatson atomic_subtract_int(&nmacmbufs, 1); 1291101988Srwatson#endif 1292100979Srwatson} 1293100979Srwatson 1294100979Srwatsonvoid 1295100979Srwatsonmac_init_cred(struct ucred *cr) 1296100979Srwatson{ 1297100979Srwatson 1298100979Srwatson mac_init_label(&cr->cr_label); 1299100979Srwatson MAC_PERFORM(init_cred, cr, &cr->cr_label); 1300101988Srwatson#ifdef MAC_DEBUG 1301100979Srwatson atomic_add_int(&nmaccreds, 1); 1302101988Srwatson#endif 1303100979Srwatson} 1304100979Srwatson 1305100979Srwatsonvoid 1306100979Srwatsonmac_destroy_cred(struct ucred *cr) 1307100979Srwatson{ 1308100979Srwatson 1309100979Srwatson MAC_PERFORM(destroy_cred, cr, &cr->cr_label); 1310100979Srwatson mac_destroy_label(&cr->cr_label); 1311101988Srwatson#ifdef MAC_DEBUG 1312100979Srwatson atomic_subtract_int(&nmaccreds, 1); 1313101988Srwatson#endif 1314100979Srwatson} 1315100979Srwatson 1316100979Srwatsonvoid 1317100979Srwatsonmac_init_ifnet(struct ifnet *ifp) 1318100979Srwatson{ 1319100979Srwatson 1320100979Srwatson mac_init_label(&ifp->if_label); 1321100979Srwatson MAC_PERFORM(init_ifnet, ifp, &ifp->if_label); 1322101988Srwatson#ifdef MAC_DEBUG 1323100979Srwatson atomic_add_int(&nmacifnets, 1); 1324101988Srwatson#endif 1325100979Srwatson} 1326100979Srwatson 1327100979Srwatsonvoid 1328100979Srwatsonmac_destroy_ifnet(struct ifnet *ifp) 1329100979Srwatson{ 1330100979Srwatson 1331100979Srwatson MAC_PERFORM(destroy_ifnet, ifp, &ifp->if_label); 1332100979Srwatson mac_destroy_label(&ifp->if_label); 1333101988Srwatson#ifdef MAC_DEBUG 1334100979Srwatson atomic_subtract_int(&nmacifnets, 1); 1335101988Srwatson#endif 1336100979Srwatson} 1337100979Srwatson 1338100979Srwatsonvoid 1339100979Srwatsonmac_init_ipq(struct ipq *ipq) 1340100979Srwatson{ 1341100979Srwatson 1342100979Srwatson mac_init_label(&ipq->ipq_label); 1343100979Srwatson MAC_PERFORM(init_ipq, ipq, &ipq->ipq_label); 1344101988Srwatson#ifdef MAC_DEBUG 1345100979Srwatson atomic_add_int(&nmacipqs, 1); 1346101988Srwatson#endif 1347100979Srwatson} 1348100979Srwatson 1349100979Srwatsonvoid 1350100979Srwatsonmac_destroy_ipq(struct ipq *ipq) 1351100979Srwatson{ 1352100979Srwatson 1353100979Srwatson MAC_PERFORM(destroy_ipq, ipq, &ipq->ipq_label); 1354100979Srwatson mac_destroy_label(&ipq->ipq_label); 1355101988Srwatson#ifdef MAC_DEBUG 1356100979Srwatson atomic_subtract_int(&nmacipqs, 1); 1357101988Srwatson#endif 1358100979Srwatson} 1359100979Srwatson 1360100979Srwatsonvoid 1361100979Srwatsonmac_init_socket(struct socket *socket) 1362100979Srwatson{ 1363100979Srwatson 1364100979Srwatson mac_init_label(&socket->so_label); 1365100979Srwatson mac_init_label(&socket->so_peerlabel); 1366100979Srwatson MAC_PERFORM(init_socket, socket, &socket->so_label, 1367100979Srwatson &socket->so_peerlabel); 1368101988Srwatson#ifdef MAC_DEBUG 1369100979Srwatson atomic_add_int(&nmacsockets, 1); 1370101988Srwatson#endif 1371100979Srwatson} 1372100979Srwatson 1373100979Srwatsonvoid 1374100979Srwatsonmac_destroy_socket(struct socket *socket) 1375100979Srwatson{ 1376100979Srwatson 1377100979Srwatson MAC_PERFORM(destroy_socket, socket, &socket->so_label, 1378100979Srwatson &socket->so_peerlabel); 1379100979Srwatson mac_destroy_label(&socket->so_label); 1380100979Srwatson mac_destroy_label(&socket->so_peerlabel); 1381101988Srwatson#ifdef MAC_DEBUG 1382100979Srwatson atomic_subtract_int(&nmacsockets, 1); 1383101988Srwatson#endif 1384100979Srwatson} 1385100979Srwatson 1386100979Srwatsonvoid 1387100979Srwatsonmac_init_pipe(struct pipe *pipe) 1388100979Srwatson{ 1389100979Srwatson struct label *label; 1390100979Srwatson 1391100979Srwatson label = malloc(sizeof(struct label), M_MACPIPELABEL, M_ZERO|M_WAITOK); 1392100979Srwatson mac_init_label(label); 1393100979Srwatson pipe->pipe_label = label; 1394100979Srwatson pipe->pipe_peer->pipe_label = label; 1395100979Srwatson MAC_PERFORM(init_pipe, pipe, pipe->pipe_label); 1396101988Srwatson#ifdef MAC_DEBUG 1397100979Srwatson atomic_add_int(&nmacpipes, 1); 1398101988Srwatson#endif 1399100979Srwatson} 1400100979Srwatson 1401100979Srwatsonvoid 1402100979Srwatsonmac_destroy_pipe(struct pipe *pipe) 1403100979Srwatson{ 1404100979Srwatson 1405100979Srwatson MAC_PERFORM(destroy_pipe, pipe, pipe->pipe_label); 1406100979Srwatson mac_destroy_label(pipe->pipe_label); 1407100979Srwatson free(pipe->pipe_label, M_MACPIPELABEL); 1408101988Srwatson#ifdef MAC_DEBUG 1409100979Srwatson atomic_subtract_int(&nmacpipes, 1); 1410101988Srwatson#endif 1411100979Srwatson} 1412100979Srwatson 1413100979Srwatsonvoid 1414100979Srwatsonmac_init_bpfdesc(struct bpf_d *bpf_d) 1415100979Srwatson{ 1416100979Srwatson 1417100979Srwatson mac_init_label(&bpf_d->bd_label); 1418100979Srwatson MAC_PERFORM(init_bpfdesc, bpf_d, &bpf_d->bd_label); 1419101988Srwatson#ifdef MAC_DEBUG 1420100979Srwatson atomic_add_int(&nmacbpfdescs, 1); 1421101988Srwatson#endif 1422100979Srwatson} 1423100979Srwatson 1424100979Srwatsonvoid 1425100979Srwatsonmac_destroy_bpfdesc(struct bpf_d *bpf_d) 1426100979Srwatson{ 1427100979Srwatson 1428100979Srwatson MAC_PERFORM(destroy_bpfdesc, bpf_d, &bpf_d->bd_label); 1429100979Srwatson mac_destroy_label(&bpf_d->bd_label); 1430101988Srwatson#ifdef MAC_DEBUG 1431100979Srwatson atomic_subtract_int(&nmacbpfdescs, 1); 1432101988Srwatson#endif 1433100979Srwatson} 1434100979Srwatson 1435100979Srwatsonvoid 1436100979Srwatsonmac_init_mount(struct mount *mp) 1437100979Srwatson{ 1438100979Srwatson 1439100979Srwatson mac_init_label(&mp->mnt_mntlabel); 1440100979Srwatson mac_init_label(&mp->mnt_fslabel); 1441100979Srwatson MAC_PERFORM(init_mount, mp, &mp->mnt_mntlabel, &mp->mnt_fslabel); 1442101988Srwatson#ifdef MAC_DEBUG 1443100979Srwatson atomic_add_int(&nmacmounts, 1); 1444101988Srwatson#endif 1445100979Srwatson} 1446100979Srwatson 1447100979Srwatsonvoid 1448100979Srwatsonmac_destroy_mount(struct mount *mp) 1449100979Srwatson{ 1450100979Srwatson 1451100979Srwatson MAC_PERFORM(destroy_mount, mp, &mp->mnt_mntlabel, &mp->mnt_fslabel); 1452100979Srwatson mac_destroy_label(&mp->mnt_fslabel); 1453100979Srwatson mac_destroy_label(&mp->mnt_mntlabel); 1454101988Srwatson#ifdef MAC_DEBUG 1455100979Srwatson atomic_subtract_int(&nmacmounts, 1); 1456101988Srwatson#endif 1457100979Srwatson} 1458100979Srwatson 1459100979Srwatsonstatic void 1460100979Srwatsonmac_init_temp(struct label *label) 1461100979Srwatson{ 1462100979Srwatson 1463100979Srwatson mac_init_label(label); 1464100979Srwatson MAC_PERFORM(init_temp, label); 1465101988Srwatson#ifdef MAC_DEBUG 1466100979Srwatson atomic_add_int(&nmactemp, 1); 1467101988Srwatson#endif 1468100979Srwatson} 1469100979Srwatson 1470100979Srwatsonstatic void 1471100979Srwatsonmac_destroy_temp(struct label *label) 1472100979Srwatson{ 1473100979Srwatson 1474100979Srwatson MAC_PERFORM(destroy_temp, label); 1475100979Srwatson mac_destroy_label(label); 1476101988Srwatson#ifdef MAC_DEBUG 1477100979Srwatson atomic_subtract_int(&nmactemp, 1); 1478101988Srwatson#endif 1479100979Srwatson} 1480100979Srwatson 1481100979Srwatsonvoid 1482100979Srwatsonmac_init_vnode(struct vnode *vp) 1483100979Srwatson{ 1484100979Srwatson 1485100979Srwatson mac_init_label(&vp->v_label); 1486100979Srwatson MAC_PERFORM(init_vnode, vp, &vp->v_label); 1487101988Srwatson#ifdef MAC_DEBUG 1488100979Srwatson atomic_add_int(&nmacvnodes, 1); 1489101988Srwatson#endif 1490100979Srwatson} 1491100979Srwatson 1492100979Srwatsonvoid 1493100979Srwatsonmac_destroy_vnode(struct vnode *vp) 1494100979Srwatson{ 1495100979Srwatson 1496100979Srwatson MAC_PERFORM(destroy_vnode, vp, &vp->v_label); 1497100979Srwatson mac_destroy_label(&vp->v_label); 1498101988Srwatson#ifdef MAC_DEBUG 1499100979Srwatson atomic_subtract_int(&nmacvnodes, 1); 1500101988Srwatson#endif 1501100979Srwatson} 1502100979Srwatson 1503100979Srwatsonvoid 1504100979Srwatsonmac_init_devfsdirent(struct devfs_dirent *de) 1505100979Srwatson{ 1506100979Srwatson 1507100979Srwatson mac_init_label(&de->de_label); 1508100979Srwatson MAC_PERFORM(init_devfsdirent, de, &de->de_label); 1509101988Srwatson#ifdef MAC_DEBUG 1510100979Srwatson atomic_add_int(&nmacdevfsdirents, 1); 1511101988Srwatson#endif 1512100979Srwatson} 1513100979Srwatson 1514100979Srwatsonvoid 1515100979Srwatsonmac_destroy_devfsdirent(struct devfs_dirent *de) 1516100979Srwatson{ 1517100979Srwatson 1518100979Srwatson MAC_PERFORM(destroy_devfsdirent, de, &de->de_label); 1519100979Srwatson mac_destroy_label(&de->de_label); 1520101988Srwatson#ifdef MAC_DEBUG 1521100979Srwatson atomic_subtract_int(&nmacdevfsdirents, 1); 1522101988Srwatson#endif 1523100979Srwatson} 1524100979Srwatson 1525100979Srwatsonstatic int 1526100979Srwatsonmac_externalize(struct label *label, struct mac *mac) 1527100979Srwatson{ 1528100979Srwatson int error; 1529100979Srwatson 1530100979Srwatson mac_init_structmac(mac); 1531100979Srwatson MAC_CHECK(externalize, label, mac); 1532100979Srwatson 1533100979Srwatson return (error); 1534100979Srwatson} 1535100979Srwatson 1536100979Srwatsonstatic int 1537100979Srwatsonmac_internalize(struct label *label, struct mac *mac) 1538100979Srwatson{ 1539100979Srwatson int error; 1540100979Srwatson 1541100979Srwatson mac_init_temp(label); 1542100979Srwatson MAC_CHECK(internalize, label, mac); 1543100979Srwatson if (error) 1544100979Srwatson mac_destroy_temp(label); 1545100979Srwatson 1546100979Srwatson return (error); 1547100979Srwatson} 1548100979Srwatson 1549100979Srwatson/* 1550100979Srwatson * Initialize MAC label for the first kernel process, from which other 1551100979Srwatson * kernel processes and threads are spawned. 1552100979Srwatson */ 1553100979Srwatsonvoid 1554100979Srwatsonmac_create_proc0(struct ucred *cred) 1555100979Srwatson{ 1556100979Srwatson 1557100979Srwatson MAC_PERFORM(create_proc0, cred); 1558100979Srwatson} 1559100979Srwatson 1560100979Srwatson/* 1561100979Srwatson * Initialize MAC label for the first userland process, from which other 1562100979Srwatson * userland processes and threads are spawned. 1563100979Srwatson */ 1564100979Srwatsonvoid 1565100979Srwatsonmac_create_proc1(struct ucred *cred) 1566100979Srwatson{ 1567100979Srwatson 1568100979Srwatson MAC_PERFORM(create_proc1, cred); 1569100979Srwatson} 1570100979Srwatson 1571100979Srwatson/* 1572100979Srwatson * When a new process is created, its label must be initialized. Generally, 1573100979Srwatson * this involves inheritence from the parent process, modulo possible 1574100979Srwatson * deltas. This function allows that processing to take place. 1575100979Srwatson */ 1576100979Srwatsonvoid 1577100979Srwatsonmac_create_cred(struct ucred *parent_cred, struct ucred *child_cred) 1578100979Srwatson{ 1579100979Srwatson 1580100979Srwatson MAC_PERFORM(create_cred, parent_cred, child_cred); 1581100979Srwatson} 1582100979Srwatson 1583100979Srwatsonint 1584100979Srwatsonmac_check_vnode_access(struct ucred *cred, struct vnode *vp, int flags) 1585100979Srwatson{ 1586100979Srwatson int error; 1587100979Srwatson 1588100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_access"); 1589100979Srwatson 1590100979Srwatson if (!mac_enforce_fs) 1591100979Srwatson return (0); 1592100979Srwatson 1593100979Srwatson error = vn_refreshlabel(vp, cred); 1594100979Srwatson if (error) 1595100979Srwatson return (error); 1596100979Srwatson 1597100979Srwatson MAC_CHECK(check_vnode_access, cred, vp, &vp->v_label, flags); 1598100979Srwatson return (error); 1599100979Srwatson} 1600100979Srwatson 1601100979Srwatsonint 1602100979Srwatsonmac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp) 1603100979Srwatson{ 1604100979Srwatson int error; 1605100979Srwatson 1606100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chdir"); 1607100979Srwatson 1608100979Srwatson if (!mac_enforce_fs) 1609100979Srwatson return (0); 1610100979Srwatson 1611100979Srwatson error = vn_refreshlabel(dvp, cred); 1612100979Srwatson if (error) 1613100979Srwatson return (error); 1614100979Srwatson 1615100979Srwatson MAC_CHECK(check_vnode_chdir, cred, dvp, &dvp->v_label); 1616100979Srwatson return (error); 1617100979Srwatson} 1618100979Srwatson 1619100979Srwatsonint 1620100979Srwatsonmac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp) 1621100979Srwatson{ 1622100979Srwatson int error; 1623100979Srwatson 1624100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chroot"); 1625100979Srwatson 1626100979Srwatson if (!mac_enforce_fs) 1627100979Srwatson return (0); 1628100979Srwatson 1629100979Srwatson error = vn_refreshlabel(dvp, cred); 1630100979Srwatson if (error) 1631100979Srwatson return (error); 1632100979Srwatson 1633100979Srwatson MAC_CHECK(check_vnode_chroot, cred, dvp, &dvp->v_label); 1634100979Srwatson return (error); 1635100979Srwatson} 1636100979Srwatson 1637100979Srwatsonint 1638100979Srwatsonmac_check_vnode_create(struct ucred *cred, struct vnode *dvp, 1639100979Srwatson struct componentname *cnp, struct vattr *vap) 1640100979Srwatson{ 1641100979Srwatson int error; 1642100979Srwatson 1643100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_create"); 1644100979Srwatson 1645100979Srwatson if (!mac_enforce_fs) 1646100979Srwatson return (0); 1647100979Srwatson 1648100979Srwatson error = vn_refreshlabel(dvp, cred); 1649100979Srwatson if (error) 1650100979Srwatson return (error); 1651100979Srwatson 1652100979Srwatson MAC_CHECK(check_vnode_create, cred, dvp, &dvp->v_label, cnp, vap); 1653100979Srwatson return (error); 1654100979Srwatson} 1655100979Srwatson 1656100979Srwatsonint 1657100979Srwatsonmac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, struct vnode *vp, 1658100979Srwatson struct componentname *cnp) 1659100979Srwatson{ 1660100979Srwatson int error; 1661100979Srwatson 1662100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_delete"); 1663100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_delete"); 1664100979Srwatson 1665100979Srwatson if (!mac_enforce_fs) 1666100979Srwatson return (0); 1667100979Srwatson 1668100979Srwatson error = vn_refreshlabel(dvp, cred); 1669100979Srwatson if (error) 1670100979Srwatson return (error); 1671100979Srwatson error = vn_refreshlabel(vp, cred); 1672100979Srwatson if (error) 1673100979Srwatson return (error); 1674100979Srwatson 1675100979Srwatson MAC_CHECK(check_vnode_delete, cred, dvp, &dvp->v_label, vp, 1676100979Srwatson &vp->v_label, cnp); 1677100979Srwatson return (error); 1678100979Srwatson} 1679100979Srwatson 1680100979Srwatsonint 1681100979Srwatsonmac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 1682100979Srwatson acl_type_t type) 1683100979Srwatson{ 1684100979Srwatson int error; 1685100979Srwatson 1686100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_deleteacl"); 1687100979Srwatson 1688100979Srwatson if (!mac_enforce_fs) 1689100979Srwatson return (0); 1690100979Srwatson 1691100979Srwatson error = vn_refreshlabel(vp, cred); 1692100979Srwatson if (error) 1693100979Srwatson return (error); 1694100979Srwatson 1695100979Srwatson MAC_CHECK(check_vnode_deleteacl, cred, vp, &vp->v_label, type); 1696100979Srwatson return (error); 1697100979Srwatson} 1698100979Srwatson 1699100979Srwatsonint 1700100979Srwatsonmac_check_vnode_exec(struct ucred *cred, struct vnode *vp) 1701100979Srwatson{ 1702100979Srwatson int error; 1703100979Srwatson 1704102102Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_exec"); 1705102102Srwatson 1706100979Srwatson if (!mac_enforce_process && !mac_enforce_fs) 1707100979Srwatson return (0); 1708100979Srwatson 1709100979Srwatson error = vn_refreshlabel(vp, cred); 1710100979Srwatson if (error) 1711100979Srwatson return (error); 1712100979Srwatson MAC_CHECK(check_vnode_exec, cred, vp, &vp->v_label); 1713100979Srwatson 1714100979Srwatson return (error); 1715100979Srwatson} 1716100979Srwatson 1717100979Srwatsonint 1718100979Srwatsonmac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, acl_type_t type) 1719100979Srwatson{ 1720100979Srwatson int error; 1721100979Srwatson 1722100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getacl"); 1723100979Srwatson 1724100979Srwatson if (!mac_enforce_fs) 1725100979Srwatson return (0); 1726100979Srwatson 1727100979Srwatson error = vn_refreshlabel(vp, cred); 1728100979Srwatson if (error) 1729100979Srwatson return (error); 1730100979Srwatson 1731100979Srwatson MAC_CHECK(check_vnode_getacl, cred, vp, &vp->v_label, type); 1732100979Srwatson return (error); 1733100979Srwatson} 1734100979Srwatson 1735100979Srwatsonint 1736100979Srwatsonmac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 1737100979Srwatson int attrnamespace, const char *name, struct uio *uio) 1738100979Srwatson{ 1739100979Srwatson int error; 1740100979Srwatson 1741100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getextattr"); 1742100979Srwatson 1743100979Srwatson if (!mac_enforce_fs) 1744100979Srwatson return (0); 1745100979Srwatson 1746100979Srwatson error = vn_refreshlabel(vp, cred); 1747100979Srwatson if (error) 1748100979Srwatson return (error); 1749100979Srwatson 1750100979Srwatson MAC_CHECK(check_vnode_getextattr, cred, vp, &vp->v_label, 1751100979Srwatson attrnamespace, name, uio); 1752100979Srwatson return (error); 1753100979Srwatson} 1754100979Srwatson 1755100979Srwatsonint 1756100979Srwatsonmac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 1757100979Srwatson struct componentname *cnp) 1758100979Srwatson{ 1759100979Srwatson int error; 1760100979Srwatson 1761100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_lookup"); 1762100979Srwatson 1763100979Srwatson if (!mac_enforce_fs) 1764100979Srwatson return (0); 1765100979Srwatson 1766100979Srwatson error = vn_refreshlabel(dvp, cred); 1767100979Srwatson if (error) 1768100979Srwatson return (error); 1769100979Srwatson 1770100979Srwatson MAC_CHECK(check_vnode_lookup, cred, dvp, &dvp->v_label, cnp); 1771100979Srwatson return (error); 1772100979Srwatson} 1773100979Srwatson 1774100979Srwatsonvm_prot_t 1775100979Srwatsonmac_check_vnode_mmap_prot(struct ucred *cred, struct vnode *vp, int newmapping) 1776100979Srwatson{ 1777100979Srwatson vm_prot_t result = VM_PROT_ALL; 1778100979Srwatson 1779100979Srwatson /* 1780100979Srwatson * This should be some sort of MAC_BITWISE, maybe :) 1781100979Srwatson */ 1782100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_mmap_perms"); 1783100979Srwatson MAC_BOOLEAN(check_vnode_mmap_perms, &, cred, vp, &vp->v_label, 1784100979Srwatson newmapping); 1785100979Srwatson return (result); 1786100979Srwatson} 1787100979Srwatson 1788100979Srwatsonint 1789102112Srwatsonmac_check_vnode_open(struct ucred *cred, struct vnode *vp, mode_t acc_mode) 1790100979Srwatson{ 1791100979Srwatson int error; 1792100979Srwatson 1793102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_open"); 1794102112Srwatson 1795100979Srwatson if (!mac_enforce_fs) 1796100979Srwatson return (0); 1797100979Srwatson 1798102112Srwatson error = vn_refreshlabel(vp, cred); 1799102112Srwatson if (error) 1800102112Srwatson return (error); 1801100979Srwatson 1802102112Srwatson MAC_CHECK(check_vnode_open, cred, vp, &vp->v_label, acc_mode); 1803102112Srwatson return (error); 1804102112Srwatson} 1805102112Srwatson 1806102112Srwatsonint 1807102129Srwatsonmac_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 1808102129Srwatson struct vnode *vp) 1809102112Srwatson{ 1810102112Srwatson int error; 1811102112Srwatson 1812102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_poll"); 1813102112Srwatson 1814102112Srwatson if (!mac_enforce_fs) 1815102112Srwatson return (0); 1816102112Srwatson 1817102129Srwatson error = vn_refreshlabel(vp, active_cred); 1818100979Srwatson if (error) 1819100979Srwatson return (error); 1820100979Srwatson 1821102129Srwatson MAC_CHECK(check_vnode_poll, active_cred, file_cred, vp, 1822102129Srwatson &vp->v_label); 1823100979Srwatson 1824100979Srwatson return (error); 1825100979Srwatson} 1826100979Srwatson 1827100979Srwatsonint 1828102129Srwatsonmac_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 1829102129Srwatson struct vnode *vp) 1830100979Srwatson{ 1831100979Srwatson int error; 1832100979Srwatson 1833102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_read"); 1834100979Srwatson 1835100979Srwatson if (!mac_enforce_fs) 1836100979Srwatson return (0); 1837100979Srwatson 1838102129Srwatson error = vn_refreshlabel(vp, active_cred); 1839100979Srwatson if (error) 1840100979Srwatson return (error); 1841100979Srwatson 1842102129Srwatson MAC_CHECK(check_vnode_read, active_cred, file_cred, vp, 1843102129Srwatson &vp->v_label); 1844102112Srwatson 1845100979Srwatson return (error); 1846100979Srwatson} 1847100979Srwatson 1848100979Srwatsonint 1849100979Srwatsonmac_check_vnode_readdir(struct ucred *cred, struct vnode *dvp) 1850100979Srwatson{ 1851100979Srwatson int error; 1852100979Srwatson 1853100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_readdir"); 1854100979Srwatson 1855100979Srwatson if (!mac_enforce_fs) 1856100979Srwatson return (0); 1857100979Srwatson 1858100979Srwatson error = vn_refreshlabel(dvp, cred); 1859100979Srwatson if (error) 1860100979Srwatson return (error); 1861100979Srwatson 1862100979Srwatson MAC_CHECK(check_vnode_readdir, cred, dvp, &dvp->v_label); 1863100979Srwatson return (error); 1864100979Srwatson} 1865100979Srwatson 1866100979Srwatsonint 1867100979Srwatsonmac_check_vnode_readlink(struct ucred *cred, struct vnode *vp) 1868100979Srwatson{ 1869100979Srwatson int error; 1870100979Srwatson 1871100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_readlink"); 1872100979Srwatson 1873100979Srwatson if (!mac_enforce_fs) 1874100979Srwatson return (0); 1875100979Srwatson 1876100979Srwatson error = vn_refreshlabel(vp, cred); 1877100979Srwatson if (error) 1878100979Srwatson return (error); 1879100979Srwatson 1880100979Srwatson MAC_CHECK(check_vnode_readlink, cred, vp, &vp->v_label); 1881100979Srwatson return (error); 1882100979Srwatson} 1883100979Srwatson 1884100979Srwatsonstatic int 1885100979Srwatsonmac_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 1886100979Srwatson struct label *newlabel) 1887100979Srwatson{ 1888100979Srwatson int error; 1889100979Srwatson 1890100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_relabel"); 1891100979Srwatson 1892100979Srwatson error = vn_refreshlabel(vp, cred); 1893100979Srwatson if (error) 1894100979Srwatson return (error); 1895100979Srwatson 1896100979Srwatson MAC_CHECK(check_vnode_relabel, cred, vp, &vp->v_label, newlabel); 1897100979Srwatson 1898100979Srwatson return (error); 1899100979Srwatson} 1900100979Srwatson 1901100979Srwatsonint 1902100979Srwatsonmac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 1903100979Srwatson struct vnode *vp, struct componentname *cnp) 1904100979Srwatson{ 1905100979Srwatson int error; 1906100979Srwatson 1907100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_from"); 1908100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_from"); 1909100979Srwatson 1910100979Srwatson if (!mac_enforce_fs) 1911100979Srwatson return (0); 1912100979Srwatson 1913100979Srwatson error = vn_refreshlabel(dvp, cred); 1914100979Srwatson if (error) 1915100979Srwatson return (error); 1916100979Srwatson error = vn_refreshlabel(vp, cred); 1917100979Srwatson if (error) 1918100979Srwatson return (error); 1919100979Srwatson 1920100979Srwatson MAC_CHECK(check_vnode_rename_from, cred, dvp, &dvp->v_label, vp, 1921100979Srwatson &vp->v_label, cnp); 1922100979Srwatson return (error); 1923100979Srwatson} 1924100979Srwatson 1925100979Srwatsonint 1926100979Srwatsonmac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 1927100979Srwatson struct vnode *vp, int samedir, struct componentname *cnp) 1928100979Srwatson{ 1929100979Srwatson int error; 1930100979Srwatson 1931100979Srwatson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_to"); 1932100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_to"); 1933100979Srwatson 1934100979Srwatson if (!mac_enforce_fs) 1935100979Srwatson return (0); 1936100979Srwatson 1937100979Srwatson error = vn_refreshlabel(dvp, cred); 1938100979Srwatson if (error) 1939100979Srwatson return (error); 1940100979Srwatson if (vp != NULL) { 1941100979Srwatson error = vn_refreshlabel(vp, cred); 1942100979Srwatson if (error) 1943100979Srwatson return (error); 1944100979Srwatson } 1945100979Srwatson MAC_CHECK(check_vnode_rename_to, cred, dvp, &dvp->v_label, vp, 1946100979Srwatson vp != NULL ? &vp->v_label : NULL, samedir, cnp); 1947100979Srwatson return (error); 1948100979Srwatson} 1949100979Srwatson 1950100979Srwatsonint 1951100979Srwatsonmac_check_vnode_revoke(struct ucred *cred, struct vnode *vp) 1952100979Srwatson{ 1953100979Srwatson int error; 1954100979Srwatson 1955100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_revoke"); 1956100979Srwatson 1957100979Srwatson if (!mac_enforce_fs) 1958100979Srwatson return (0); 1959100979Srwatson 1960100979Srwatson error = vn_refreshlabel(vp, cred); 1961100979Srwatson if (error) 1962100979Srwatson return (error); 1963100979Srwatson 1964100979Srwatson MAC_CHECK(check_vnode_revoke, cred, vp, &vp->v_label); 1965100979Srwatson return (error); 1966100979Srwatson} 1967100979Srwatson 1968100979Srwatsonint 1969100979Srwatsonmac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, acl_type_t type, 1970100979Srwatson struct acl *acl) 1971100979Srwatson{ 1972100979Srwatson int error; 1973100979Srwatson 1974100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setacl"); 1975100979Srwatson 1976100979Srwatson if (!mac_enforce_fs) 1977100979Srwatson return (0); 1978100979Srwatson 1979100979Srwatson error = vn_refreshlabel(vp, cred); 1980100979Srwatson if (error) 1981100979Srwatson return (error); 1982100979Srwatson 1983100979Srwatson MAC_CHECK(check_vnode_setacl, cred, vp, &vp->v_label, type, acl); 1984100979Srwatson return (error); 1985100979Srwatson} 1986100979Srwatson 1987100979Srwatsonint 1988100979Srwatsonmac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 1989100979Srwatson int attrnamespace, const char *name, struct uio *uio) 1990100979Srwatson{ 1991100979Srwatson int error; 1992100979Srwatson 1993100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setextattr"); 1994100979Srwatson 1995100979Srwatson if (!mac_enforce_fs) 1996100979Srwatson return (0); 1997100979Srwatson 1998100979Srwatson error = vn_refreshlabel(vp, cred); 1999100979Srwatson if (error) 2000100979Srwatson return (error); 2001100979Srwatson 2002100979Srwatson MAC_CHECK(check_vnode_setextattr, cred, vp, &vp->v_label, 2003100979Srwatson attrnamespace, name, uio); 2004100979Srwatson return (error); 2005100979Srwatson} 2006100979Srwatson 2007100979Srwatsonint 2008100979Srwatsonmac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, u_long flags) 2009100979Srwatson{ 2010100979Srwatson int error; 2011100979Srwatson 2012100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setflags"); 2013100979Srwatson 2014100979Srwatson if (!mac_enforce_fs) 2015100979Srwatson return (0); 2016100979Srwatson 2017100979Srwatson error = vn_refreshlabel(vp, cred); 2018100979Srwatson if (error) 2019100979Srwatson return (error); 2020100979Srwatson 2021100979Srwatson MAC_CHECK(check_vnode_setflags, cred, vp, &vp->v_label, flags); 2022100979Srwatson return (error); 2023100979Srwatson} 2024100979Srwatson 2025100979Srwatsonint 2026100979Srwatsonmac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, mode_t mode) 2027100979Srwatson{ 2028100979Srwatson int error; 2029100979Srwatson 2030100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setmode"); 2031100979Srwatson 2032100979Srwatson if (!mac_enforce_fs) 2033100979Srwatson return (0); 2034100979Srwatson 2035100979Srwatson error = vn_refreshlabel(vp, cred); 2036100979Srwatson if (error) 2037100979Srwatson return (error); 2038100979Srwatson 2039100979Srwatson MAC_CHECK(check_vnode_setmode, cred, vp, &vp->v_label, mode); 2040100979Srwatson return (error); 2041100979Srwatson} 2042100979Srwatson 2043100979Srwatsonint 2044100979Srwatsonmac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, uid_t uid, 2045100979Srwatson gid_t gid) 2046100979Srwatson{ 2047100979Srwatson int error; 2048100979Srwatson 2049100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setowner"); 2050100979Srwatson 2051100979Srwatson if (!mac_enforce_fs) 2052100979Srwatson return (0); 2053100979Srwatson 2054100979Srwatson error = vn_refreshlabel(vp, cred); 2055100979Srwatson if (error) 2056100979Srwatson return (error); 2057100979Srwatson 2058100979Srwatson MAC_CHECK(check_vnode_setowner, cred, vp, &vp->v_label, uid, gid); 2059100979Srwatson return (error); 2060100979Srwatson} 2061100979Srwatson 2062100979Srwatsonint 2063100979Srwatsonmac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 2064100979Srwatson struct timespec atime, struct timespec mtime) 2065100979Srwatson{ 2066100979Srwatson int error; 2067100979Srwatson 2068100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setutimes"); 2069100979Srwatson 2070100979Srwatson if (!mac_enforce_fs) 2071100979Srwatson return (0); 2072100979Srwatson 2073100979Srwatson error = vn_refreshlabel(vp, cred); 2074100979Srwatson if (error) 2075100979Srwatson return (error); 2076100979Srwatson 2077100979Srwatson MAC_CHECK(check_vnode_setutimes, cred, vp, &vp->v_label, atime, 2078100979Srwatson mtime); 2079100979Srwatson return (error); 2080100979Srwatson} 2081100979Srwatson 2082100979Srwatsonint 2083102129Srwatsonmac_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 2084102129Srwatson struct vnode *vp) 2085100979Srwatson{ 2086100979Srwatson int error; 2087100979Srwatson 2088100979Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_stat"); 2089100979Srwatson 2090100979Srwatson if (!mac_enforce_fs) 2091100979Srwatson return (0); 2092100979Srwatson 2093102129Srwatson error = vn_refreshlabel(vp, active_cred); 2094100979Srwatson if (error) 2095100979Srwatson return (error); 2096100979Srwatson 2097102129Srwatson MAC_CHECK(check_vnode_stat, active_cred, file_cred, vp, 2098102129Srwatson &vp->v_label); 2099100979Srwatson return (error); 2100100979Srwatson} 2101100979Srwatson 2102102112Srwatsonint 2103102129Srwatsonmac_check_vnode_write(struct ucred *active_cred, struct ucred *file_cred, 2104102129Srwatson struct vnode *vp) 2105102112Srwatson{ 2106102112Srwatson int error; 2107102112Srwatson 2108102112Srwatson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_write"); 2109102112Srwatson 2110102112Srwatson if (!mac_enforce_fs) 2111102112Srwatson return (0); 2112102112Srwatson 2113102129Srwatson error = vn_refreshlabel(vp, active_cred); 2114102112Srwatson if (error) 2115102112Srwatson return (error); 2116102112Srwatson 2117102129Srwatson MAC_CHECK(check_vnode_write, active_cred, file_cred, vp, 2118102129Srwatson &vp->v_label); 2119102112Srwatson 2120102112Srwatson return (error); 2121102112Srwatson} 2122102112Srwatson 2123100979Srwatson/* 2124100979Srwatson * When relabeling a process, call out to the policies for the maximum 2125100979Srwatson * permission allowed for each object type we know about in its 2126100979Srwatson * memory space, and revoke access (in the least surprising ways we 2127100979Srwatson * know) when necessary. The process lock is not held here. 2128100979Srwatson */ 2129100979Srwatsonstatic void 2130100979Srwatsonmac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred) 2131100979Srwatson{ 2132100979Srwatson 2133100979Srwatson /* XXX freeze all other threads */ 2134100979Srwatson mtx_lock(&Giant); 2135100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2136100979Srwatson &td->td_proc->p_vmspace->vm_map); 2137100979Srwatson mtx_unlock(&Giant); 2138100979Srwatson /* XXX allow other threads to continue */ 2139100979Srwatson} 2140100979Srwatson 2141100979Srwatsonstatic __inline const char * 2142100979Srwatsonprot2str(vm_prot_t prot) 2143100979Srwatson{ 2144100979Srwatson 2145100979Srwatson switch (prot & VM_PROT_ALL) { 2146100979Srwatson case VM_PROT_READ: 2147100979Srwatson return ("r--"); 2148100979Srwatson case VM_PROT_READ | VM_PROT_WRITE: 2149100979Srwatson return ("rw-"); 2150100979Srwatson case VM_PROT_READ | VM_PROT_EXECUTE: 2151100979Srwatson return ("r-x"); 2152100979Srwatson case VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE: 2153100979Srwatson return ("rwx"); 2154100979Srwatson case VM_PROT_WRITE: 2155100979Srwatson return ("-w-"); 2156100979Srwatson case VM_PROT_EXECUTE: 2157100979Srwatson return ("--x"); 2158100979Srwatson case VM_PROT_WRITE | VM_PROT_EXECUTE: 2159100979Srwatson return ("-wx"); 2160100979Srwatson default: 2161100979Srwatson return ("---"); 2162100979Srwatson } 2163100979Srwatson} 2164100979Srwatson 2165100979Srwatsonstatic void 2166100979Srwatsonmac_cred_mmapped_drop_perms_recurse(struct thread *td, struct ucred *cred, 2167100979Srwatson struct vm_map *map) 2168100979Srwatson{ 2169100979Srwatson struct vm_map_entry *vme; 2170100979Srwatson vm_prot_t result, revokeperms; 2171100979Srwatson vm_object_t object; 2172100979Srwatson vm_ooffset_t offset; 2173100979Srwatson struct vnode *vp; 2174100979Srwatson 2175100979Srwatson vm_map_lock_read(map); 2176100979Srwatson for (vme = map->header.next; vme != &map->header; vme = vme->next) { 2177100979Srwatson if (vme->eflags & MAP_ENTRY_IS_SUB_MAP) { 2178100979Srwatson mac_cred_mmapped_drop_perms_recurse(td, cred, 2179100979Srwatson vme->object.sub_map); 2180100979Srwatson continue; 2181100979Srwatson } 2182100979Srwatson /* 2183100979Srwatson * Skip over entries that obviously are not shared. 2184100979Srwatson */ 2185100979Srwatson if (vme->eflags & (MAP_ENTRY_COW | MAP_ENTRY_NOSYNC) || 2186100979Srwatson !vme->max_protection) 2187100979Srwatson continue; 2188100979Srwatson /* 2189100979Srwatson * Drill down to the deepest backing object. 2190100979Srwatson */ 2191100979Srwatson offset = vme->offset; 2192100979Srwatson object = vme->object.vm_object; 2193100979Srwatson if (object == NULL) 2194100979Srwatson continue; 2195100979Srwatson while (object->backing_object != NULL) { 2196100979Srwatson object = object->backing_object; 2197100979Srwatson offset += object->backing_object_offset; 2198100979Srwatson } 2199100979Srwatson /* 2200100979Srwatson * At the moment, vm_maps and objects aren't considered 2201100979Srwatson * by the MAC system, so only things with backing by a 2202100979Srwatson * normal object (read: vnodes) are checked. 2203100979Srwatson */ 2204100979Srwatson if (object->type != OBJT_VNODE) 2205100979Srwatson continue; 2206100979Srwatson vp = (struct vnode *)object->handle; 2207100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2208100979Srwatson result = mac_check_vnode_mmap_prot(cred, vp, 0); 2209100979Srwatson VOP_UNLOCK(vp, 0, td); 2210100979Srwatson /* 2211100979Srwatson * Find out what maximum protection we may be allowing 2212100979Srwatson * now but a policy needs to get removed. 2213100979Srwatson */ 2214100979Srwatson revokeperms = vme->max_protection & ~result; 2215100979Srwatson if (!revokeperms) 2216100979Srwatson continue; 2217100979Srwatson printf("pid %d: revoking %s perms from %#lx:%d " 2218100979Srwatson "(max %s/cur %s)\n", td->td_proc->p_pid, 2219100979Srwatson prot2str(revokeperms), vme->start, vme->end - vme->start, 2220100979Srwatson prot2str(vme->max_protection), prot2str(vme->protection)); 2221100979Srwatson vm_map_lock_upgrade(map); 2222100979Srwatson /* 2223100979Srwatson * This is the really simple case: if a map has more 2224100979Srwatson * max_protection than is allowed, but it's not being 2225100979Srwatson * actually used (that is, the current protection is 2226100979Srwatson * still allowed), we can just wipe it out and do 2227100979Srwatson * nothing more. 2228100979Srwatson */ 2229100979Srwatson if ((vme->protection & revokeperms) == 0) { 2230100979Srwatson vme->max_protection -= revokeperms; 2231100979Srwatson } else { 2232100979Srwatson if (revokeperms & VM_PROT_WRITE) { 2233100979Srwatson /* 2234100979Srwatson * In the more complicated case, flush out all 2235100979Srwatson * pending changes to the object then turn it 2236100979Srwatson * copy-on-write. 2237100979Srwatson */ 2238100979Srwatson vm_object_reference(object); 2239100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2240100979Srwatson vm_object_page_clean(object, 2241100979Srwatson OFF_TO_IDX(offset), 2242100979Srwatson OFF_TO_IDX(offset + vme->end - vme->start + 2243100979Srwatson PAGE_MASK), 2244100979Srwatson OBJPC_SYNC); 2245100979Srwatson VOP_UNLOCK(vp, 0, td); 2246100979Srwatson vm_object_deallocate(object); 2247100979Srwatson /* 2248100979Srwatson * Why bother if there's no read permissions 2249100979Srwatson * anymore? For the rest, we need to leave 2250100979Srwatson * the write permissions on for COW, or 2251100979Srwatson * remove them entirely if configured to. 2252100979Srwatson */ 2253100979Srwatson if (!mac_mmap_revocation_via_cow) { 2254100979Srwatson vme->max_protection &= ~VM_PROT_WRITE; 2255100979Srwatson vme->protection &= ~VM_PROT_WRITE; 2256100979Srwatson } if ((revokeperms & VM_PROT_READ) == 0) 2257100979Srwatson vme->eflags |= MAP_ENTRY_COW | 2258100979Srwatson MAP_ENTRY_NEEDS_COPY; 2259100979Srwatson } 2260100979Srwatson if (revokeperms & VM_PROT_EXECUTE) { 2261100979Srwatson vme->max_protection &= ~VM_PROT_EXECUTE; 2262100979Srwatson vme->protection &= ~VM_PROT_EXECUTE; 2263100979Srwatson } 2264100979Srwatson if (revokeperms & VM_PROT_READ) { 2265100979Srwatson vme->max_protection = 0; 2266100979Srwatson vme->protection = 0; 2267100979Srwatson } 2268100979Srwatson pmap_protect(map->pmap, vme->start, vme->end, 2269100979Srwatson vme->protection & ~revokeperms); 2270100979Srwatson vm_map_simplify_entry(map, vme); 2271100979Srwatson } 2272100979Srwatson vm_map_lock_downgrade(map); 2273100979Srwatson } 2274100979Srwatson vm_map_unlock_read(map); 2275100979Srwatson} 2276100979Srwatson 2277100979Srwatson/* 2278100979Srwatson * When the subject's label changes, it may require revocation of privilege 2279100979Srwatson * to mapped objects. This can't be done on-the-fly later with a unified 2280100979Srwatson * buffer cache. 2281100979Srwatson */ 2282100979Srwatsonstatic void 2283100979Srwatsonmac_relabel_cred(struct ucred *cred, struct label *newlabel) 2284100979Srwatson{ 2285100979Srwatson 2286100979Srwatson MAC_PERFORM(relabel_cred, cred, newlabel); 2287100979Srwatson} 2288100979Srwatson 2289100979Srwatsonvoid 2290100979Srwatsonmac_relabel_vnode(struct ucred *cred, struct vnode *vp, struct label *newlabel) 2291100979Srwatson{ 2292100979Srwatson 2293100979Srwatson MAC_PERFORM(relabel_vnode, cred, vp, &vp->v_label, newlabel); 2294100979Srwatson} 2295100979Srwatson 2296100979Srwatsonvoid 2297100979Srwatsonmac_create_ifnet(struct ifnet *ifnet) 2298100979Srwatson{ 2299100979Srwatson 2300100979Srwatson MAC_PERFORM(create_ifnet, ifnet, &ifnet->if_label); 2301100979Srwatson} 2302100979Srwatson 2303100979Srwatsonvoid 2304100979Srwatsonmac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d) 2305100979Srwatson{ 2306100979Srwatson 2307100979Srwatson MAC_PERFORM(create_bpfdesc, cred, bpf_d, &bpf_d->bd_label); 2308100979Srwatson} 2309100979Srwatson 2310100979Srwatsonvoid 2311100979Srwatsonmac_create_socket(struct ucred *cred, struct socket *socket) 2312100979Srwatson{ 2313100979Srwatson 2314100979Srwatson MAC_PERFORM(create_socket, cred, socket, &socket->so_label); 2315100979Srwatson} 2316100979Srwatson 2317100979Srwatsonvoid 2318100979Srwatsonmac_create_pipe(struct ucred *cred, struct pipe *pipe) 2319100979Srwatson{ 2320100979Srwatson 2321100979Srwatson MAC_PERFORM(create_pipe, cred, pipe, pipe->pipe_label); 2322100979Srwatson} 2323100979Srwatson 2324100979Srwatsonvoid 2325100979Srwatsonmac_create_socket_from_socket(struct socket *oldsocket, 2326100979Srwatson struct socket *newsocket) 2327100979Srwatson{ 2328100979Srwatson 2329100979Srwatson MAC_PERFORM(create_socket_from_socket, oldsocket, &oldsocket->so_label, 2330100979Srwatson newsocket, &newsocket->so_label); 2331100979Srwatson} 2332100979Srwatson 2333100979Srwatsonstatic void 2334100979Srwatsonmac_relabel_socket(struct ucred *cred, struct socket *socket, 2335100979Srwatson struct label *newlabel) 2336100979Srwatson{ 2337100979Srwatson 2338100979Srwatson MAC_PERFORM(relabel_socket, cred, socket, &socket->so_label, newlabel); 2339100979Srwatson} 2340100979Srwatson 2341100979Srwatsonstatic void 2342100979Srwatsonmac_relabel_pipe(struct ucred *cred, struct pipe *pipe, struct label *newlabel) 2343100979Srwatson{ 2344100979Srwatson 2345100979Srwatson MAC_PERFORM(relabel_pipe, cred, pipe, pipe->pipe_label, newlabel); 2346100979Srwatson} 2347100979Srwatson 2348100979Srwatsonvoid 2349100979Srwatsonmac_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct socket *socket) 2350100979Srwatson{ 2351100979Srwatson 2352100979Srwatson MAC_PERFORM(set_socket_peer_from_mbuf, mbuf, &mbuf->m_pkthdr.label, 2353100979Srwatson socket, &socket->so_peerlabel); 2354100979Srwatson} 2355100979Srwatson 2356100979Srwatsonvoid 2357100979Srwatsonmac_set_socket_peer_from_socket(struct socket *oldsocket, 2358100979Srwatson struct socket *newsocket) 2359100979Srwatson{ 2360100979Srwatson 2361100979Srwatson MAC_PERFORM(set_socket_peer_from_socket, oldsocket, 2362100979Srwatson &oldsocket->so_label, newsocket, &newsocket->so_peerlabel); 2363100979Srwatson} 2364100979Srwatson 2365100979Srwatsonvoid 2366100979Srwatsonmac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram) 2367100979Srwatson{ 2368100979Srwatson 2369100979Srwatson MAC_PERFORM(create_datagram_from_ipq, ipq, &ipq->ipq_label, 2370100979Srwatson datagram, &datagram->m_pkthdr.label); 2371100979Srwatson} 2372100979Srwatson 2373100979Srwatsonvoid 2374100979Srwatsonmac_create_fragment(struct mbuf *datagram, struct mbuf *fragment) 2375100979Srwatson{ 2376100979Srwatson 2377100979Srwatson MAC_PERFORM(create_fragment, datagram, &datagram->m_pkthdr.label, 2378100979Srwatson fragment, &fragment->m_pkthdr.label); 2379100979Srwatson} 2380100979Srwatson 2381100979Srwatsonvoid 2382100979Srwatsonmac_create_ipq(struct mbuf *fragment, struct ipq *ipq) 2383100979Srwatson{ 2384100979Srwatson 2385100979Srwatson MAC_PERFORM(create_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2386100979Srwatson &ipq->ipq_label); 2387100979Srwatson} 2388100979Srwatson 2389100979Srwatsonvoid 2390100979Srwatsonmac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2391100979Srwatson{ 2392100979Srwatson 2393100979Srwatson MAC_PERFORM(create_mbuf_from_mbuf, oldmbuf, &oldmbuf->m_pkthdr.label, 2394100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2395100979Srwatson} 2396100979Srwatson 2397100979Srwatsonvoid 2398100979Srwatsonmac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *mbuf) 2399100979Srwatson{ 2400100979Srwatson 2401100979Srwatson MAC_PERFORM(create_mbuf_from_bpfdesc, bpf_d, &bpf_d->bd_label, mbuf, 2402100979Srwatson &mbuf->m_pkthdr.label); 2403100979Srwatson} 2404100979Srwatson 2405100979Srwatsonvoid 2406100979Srwatsonmac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *mbuf) 2407100979Srwatson{ 2408100979Srwatson 2409100979Srwatson MAC_PERFORM(create_mbuf_linklayer, ifnet, &ifnet->if_label, mbuf, 2410100979Srwatson &mbuf->m_pkthdr.label); 2411100979Srwatson} 2412100979Srwatson 2413100979Srwatsonvoid 2414100979Srwatsonmac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *mbuf) 2415100979Srwatson{ 2416100979Srwatson 2417100979Srwatson MAC_PERFORM(create_mbuf_from_ifnet, ifnet, &ifnet->if_label, mbuf, 2418100979Srwatson &mbuf->m_pkthdr.label); 2419100979Srwatson} 2420100979Srwatson 2421100979Srwatsonvoid 2422100979Srwatsonmac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, struct ifnet *ifnet, 2423100979Srwatson struct mbuf *newmbuf) 2424100979Srwatson{ 2425100979Srwatson 2426100979Srwatson MAC_PERFORM(create_mbuf_multicast_encap, oldmbuf, 2427100979Srwatson &oldmbuf->m_pkthdr.label, ifnet, &ifnet->if_label, newmbuf, 2428100979Srwatson &newmbuf->m_pkthdr.label); 2429100979Srwatson} 2430100979Srwatson 2431100979Srwatsonvoid 2432100979Srwatsonmac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf) 2433100979Srwatson{ 2434100979Srwatson 2435100979Srwatson MAC_PERFORM(create_mbuf_netlayer, oldmbuf, &oldmbuf->m_pkthdr.label, 2436100979Srwatson newmbuf, &newmbuf->m_pkthdr.label); 2437100979Srwatson} 2438100979Srwatson 2439100979Srwatsonint 2440100979Srwatsonmac_fragment_match(struct mbuf *fragment, struct ipq *ipq) 2441100979Srwatson{ 2442100979Srwatson int result; 2443100979Srwatson 2444100979Srwatson result = 1; 2445100979Srwatson MAC_BOOLEAN(fragment_match, &&, fragment, &fragment->m_pkthdr.label, 2446100979Srwatson ipq, &ipq->ipq_label); 2447100979Srwatson 2448100979Srwatson return (result); 2449100979Srwatson} 2450100979Srwatson 2451100979Srwatsonvoid 2452100979Srwatsonmac_update_ipq(struct mbuf *fragment, struct ipq *ipq) 2453100979Srwatson{ 2454100979Srwatson 2455100979Srwatson MAC_PERFORM(update_ipq, fragment, &fragment->m_pkthdr.label, ipq, 2456100979Srwatson &ipq->ipq_label); 2457100979Srwatson} 2458100979Srwatson 2459100979Srwatsonvoid 2460100979Srwatsonmac_create_mbuf_from_socket(struct socket *socket, struct mbuf *mbuf) 2461100979Srwatson{ 2462100979Srwatson 2463100979Srwatson MAC_PERFORM(create_mbuf_from_socket, socket, &socket->so_label, mbuf, 2464100979Srwatson &mbuf->m_pkthdr.label); 2465100979Srwatson} 2466100979Srwatson 2467100979Srwatsonvoid 2468100979Srwatsonmac_create_mount(struct ucred *cred, struct mount *mp) 2469100979Srwatson{ 2470100979Srwatson 2471100979Srwatson MAC_PERFORM(create_mount, cred, mp, &mp->mnt_mntlabel, 2472100979Srwatson &mp->mnt_fslabel); 2473100979Srwatson} 2474100979Srwatson 2475100979Srwatsonvoid 2476100979Srwatsonmac_create_root_mount(struct ucred *cred, struct mount *mp) 2477100979Srwatson{ 2478100979Srwatson 2479100979Srwatson MAC_PERFORM(create_root_mount, cred, mp, &mp->mnt_mntlabel, 2480100979Srwatson &mp->mnt_fslabel); 2481100979Srwatson} 2482100979Srwatson 2483100979Srwatsonint 2484100979Srwatsonmac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet) 2485100979Srwatson{ 2486100979Srwatson int error; 2487100979Srwatson 2488100979Srwatson if (!mac_enforce_network) 2489100979Srwatson return (0); 2490100979Srwatson 2491100979Srwatson MAC_CHECK(check_bpfdesc_receive, bpf_d, &bpf_d->bd_label, ifnet, 2492100979Srwatson &ifnet->if_label); 2493100979Srwatson 2494100979Srwatson return (error); 2495100979Srwatson} 2496100979Srwatson 2497100979Srwatsonstatic int 2498100979Srwatsonmac_check_cred_relabel(struct ucred *cred, struct label *newlabel) 2499100979Srwatson{ 2500100979Srwatson int error; 2501100979Srwatson 2502100979Srwatson MAC_CHECK(check_cred_relabel, cred, newlabel); 2503100979Srwatson 2504100979Srwatson return (error); 2505100979Srwatson} 2506100979Srwatson 2507100979Srwatsonint 2508100979Srwatsonmac_check_cred_visible(struct ucred *u1, struct ucred *u2) 2509100979Srwatson{ 2510100979Srwatson int error; 2511100979Srwatson 2512100979Srwatson if (!mac_enforce_process) 2513100979Srwatson return (0); 2514100979Srwatson 2515100979Srwatson MAC_CHECK(check_cred_visible, u1, u2); 2516100979Srwatson 2517100979Srwatson return (error); 2518100979Srwatson} 2519100979Srwatson 2520100979Srwatsonint 2521100979Srwatsonmac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *mbuf) 2522100979Srwatson{ 2523100979Srwatson int error; 2524100979Srwatson 2525100979Srwatson if (!mac_enforce_network) 2526100979Srwatson return (0); 2527100979Srwatson 2528100979Srwatson KASSERT(mbuf->m_flags & M_PKTHDR, ("packet has no pkthdr")); 2529100979Srwatson if (!(mbuf->m_pkthdr.label.l_flags & MAC_FLAG_INITIALIZED)) 2530100979Srwatson printf("%s%d: not initialized\n", ifnet->if_name, 2531100979Srwatson ifnet->if_unit); 2532100979Srwatson 2533100979Srwatson MAC_CHECK(check_ifnet_transmit, ifnet, &ifnet->if_label, mbuf, 2534100979Srwatson &mbuf->m_pkthdr.label); 2535100979Srwatson 2536100979Srwatson return (error); 2537100979Srwatson} 2538100979Srwatson 2539100979Srwatsonint 2540100979Srwatsonmac_check_mount_stat(struct ucred *cred, struct mount *mount) 2541100979Srwatson{ 2542100979Srwatson int error; 2543100979Srwatson 2544100979Srwatson if (!mac_enforce_fs) 2545100979Srwatson return (0); 2546100979Srwatson 2547100979Srwatson MAC_CHECK(check_mount_stat, cred, mount, &mount->mnt_mntlabel); 2548100979Srwatson 2549100979Srwatson return (error); 2550100979Srwatson} 2551100979Srwatson 2552100979Srwatsonint 2553100979Srwatsonmac_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe, unsigned long cmd, 2554100979Srwatson void *data) 2555100979Srwatson{ 2556100979Srwatson int error; 2557100979Srwatson 2558100979Srwatson MAC_CHECK(check_pipe_ioctl, cred, pipe, pipe->pipe_label, cmd, data); 2559100979Srwatson 2560100979Srwatson return (error); 2561100979Srwatson} 2562100979Srwatson 2563100979Srwatsonint 2564102115Srwatsonmac_check_pipe_poll(struct ucred *cred, struct pipe *pipe) 2565100979Srwatson{ 2566100979Srwatson int error; 2567100979Srwatson 2568102115Srwatson MAC_CHECK(check_pipe_poll, cred, pipe, pipe->pipe_label); 2569100979Srwatson 2570100979Srwatson return (error); 2571100979Srwatson} 2572100979Srwatson 2573102115Srwatsonint 2574102115Srwatsonmac_check_pipe_read(struct ucred *cred, struct pipe *pipe) 2575102115Srwatson{ 2576102115Srwatson int error; 2577102115Srwatson 2578102115Srwatson MAC_CHECK(check_pipe_read, cred, pipe, pipe->pipe_label); 2579102115Srwatson 2580102115Srwatson return (error); 2581102115Srwatson} 2582102115Srwatson 2583100979Srwatsonstatic int 2584100979Srwatsonmac_check_pipe_relabel(struct ucred *cred, struct pipe *pipe, 2585100979Srwatson struct label *newlabel) 2586100979Srwatson{ 2587100979Srwatson int error; 2588100979Srwatson 2589100979Srwatson MAC_CHECK(check_pipe_relabel, cred, pipe, pipe->pipe_label, newlabel); 2590100979Srwatson 2591100979Srwatson return (error); 2592100979Srwatson} 2593100979Srwatson 2594100979Srwatsonint 2595102115Srwatsonmac_check_pipe_stat(struct ucred *cred, struct pipe *pipe) 2596102115Srwatson{ 2597102115Srwatson int error; 2598102115Srwatson 2599102115Srwatson MAC_CHECK(check_pipe_stat, cred, pipe, pipe->pipe_label); 2600102115Srwatson 2601102115Srwatson return (error); 2602102115Srwatson} 2603102115Srwatson 2604102115Srwatsonint 2605102115Srwatsonmac_check_pipe_write(struct ucred *cred, struct pipe *pipe) 2606102115Srwatson{ 2607102115Srwatson int error; 2608102115Srwatson 2609102115Srwatson MAC_CHECK(check_pipe_write, cred, pipe, pipe->pipe_label); 2610102115Srwatson 2611102115Srwatson return (error); 2612102115Srwatson} 2613102115Srwatson 2614102115Srwatsonint 2615100979Srwatsonmac_check_proc_debug(struct ucred *cred, struct proc *proc) 2616100979Srwatson{ 2617100979Srwatson int error; 2618100979Srwatson 2619102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2620102103Srwatson 2621100979Srwatson if (!mac_enforce_process) 2622100979Srwatson return (0); 2623100979Srwatson 2624100979Srwatson MAC_CHECK(check_proc_debug, cred, proc); 2625100979Srwatson 2626100979Srwatson return (error); 2627100979Srwatson} 2628100979Srwatson 2629100979Srwatsonint 2630100979Srwatsonmac_check_proc_sched(struct ucred *cred, struct proc *proc) 2631100979Srwatson{ 2632100979Srwatson int error; 2633100979Srwatson 2634102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2635102103Srwatson 2636100979Srwatson if (!mac_enforce_process) 2637100979Srwatson return (0); 2638100979Srwatson 2639100979Srwatson MAC_CHECK(check_proc_sched, cred, proc); 2640100979Srwatson 2641100979Srwatson return (error); 2642100979Srwatson} 2643100979Srwatson 2644100979Srwatsonint 2645100979Srwatsonmac_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 2646100979Srwatson{ 2647100979Srwatson int error; 2648100979Srwatson 2649102103Srwatson PROC_LOCK_ASSERT(proc, MA_OWNED); 2650102103Srwatson 2651100979Srwatson if (!mac_enforce_process) 2652100979Srwatson return (0); 2653100979Srwatson 2654100979Srwatson MAC_CHECK(check_proc_signal, cred, proc, signum); 2655100979Srwatson 2656100979Srwatson return (error); 2657100979Srwatson} 2658100979Srwatson 2659100979Srwatsonint 2660100979Srwatsonmac_check_socket_bind(struct ucred *ucred, struct socket *socket, 2661100979Srwatson struct sockaddr *sockaddr) 2662100979Srwatson{ 2663100979Srwatson int error; 2664100979Srwatson 2665100979Srwatson if (!mac_enforce_socket) 2666100979Srwatson return (0); 2667100979Srwatson 2668100979Srwatson MAC_CHECK(check_socket_bind, ucred, socket, &socket->so_label, 2669100979Srwatson sockaddr); 2670100979Srwatson 2671100979Srwatson return (error); 2672100979Srwatson} 2673100979Srwatson 2674100979Srwatsonint 2675100979Srwatsonmac_check_socket_connect(struct ucred *cred, struct socket *socket, 2676100979Srwatson struct sockaddr *sockaddr) 2677100979Srwatson{ 2678100979Srwatson int error; 2679100979Srwatson 2680100979Srwatson if (!mac_enforce_socket) 2681100979Srwatson return (0); 2682100979Srwatson 2683100979Srwatson MAC_CHECK(check_socket_connect, cred, socket, &socket->so_label, 2684100979Srwatson sockaddr); 2685100979Srwatson 2686100979Srwatson return (error); 2687100979Srwatson} 2688100979Srwatson 2689100979Srwatsonint 2690101933Srwatsonmac_check_socket_deliver(struct socket *socket, struct mbuf *mbuf) 2691100979Srwatson{ 2692100979Srwatson int error; 2693100979Srwatson 2694100979Srwatson if (!mac_enforce_socket) 2695100979Srwatson return (0); 2696100979Srwatson 2697101933Srwatson MAC_CHECK(check_socket_deliver, socket, &socket->so_label, mbuf, 2698101933Srwatson &mbuf->m_pkthdr.label); 2699101933Srwatson 2700100979Srwatson return (error); 2701100979Srwatson} 2702100979Srwatson 2703100979Srwatsonint 2704101933Srwatsonmac_check_socket_listen(struct ucred *cred, struct socket *socket) 2705100979Srwatson{ 2706100979Srwatson int error; 2707100979Srwatson 2708100979Srwatson if (!mac_enforce_socket) 2709100979Srwatson return (0); 2710100979Srwatson 2711101933Srwatson MAC_CHECK(check_socket_listen, cred, socket, &socket->so_label); 2712100979Srwatson return (error); 2713100979Srwatson} 2714100979Srwatson 2715100979Srwatsonstatic int 2716100979Srwatsonmac_check_socket_relabel(struct ucred *cred, struct socket *socket, 2717100979Srwatson struct label *newlabel) 2718100979Srwatson{ 2719100979Srwatson int error; 2720100979Srwatson 2721100979Srwatson MAC_CHECK(check_socket_relabel, cred, socket, &socket->so_label, 2722100979Srwatson newlabel); 2723100979Srwatson 2724100979Srwatson return (error); 2725100979Srwatson} 2726100979Srwatson 2727100979Srwatsonint 2728100979Srwatsonmac_check_socket_visible(struct ucred *cred, struct socket *socket) 2729100979Srwatson{ 2730100979Srwatson int error; 2731100979Srwatson 2732100979Srwatson if (!mac_enforce_socket) 2733100979Srwatson return (0); 2734100979Srwatson 2735100979Srwatson MAC_CHECK(check_socket_visible, cred, socket, &socket->so_label); 2736100979Srwatson 2737100979Srwatson return (error); 2738100979Srwatson} 2739100979Srwatson 2740100979Srwatsonint 2741100979Srwatsonmac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, 2742100979Srwatson struct ifnet *ifnet) 2743100979Srwatson{ 2744100979Srwatson struct mac label; 2745100979Srwatson int error; 2746100979Srwatson 2747100979Srwatson error = mac_externalize(&ifnet->if_label, &label); 2748100979Srwatson if (error) 2749100979Srwatson return (error); 2750100979Srwatson 2751100979Srwatson return (copyout(&label, ifr->ifr_ifru.ifru_data, sizeof(label))); 2752100979Srwatson} 2753100979Srwatson 2754100979Srwatsonint 2755100979Srwatsonmac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, 2756100979Srwatson struct ifnet *ifnet) 2757100979Srwatson{ 2758100979Srwatson struct mac newlabel; 2759100979Srwatson struct label intlabel; 2760100979Srwatson int error; 2761100979Srwatson 2762100979Srwatson error = copyin(ifr->ifr_ifru.ifru_data, &newlabel, sizeof(newlabel)); 2763100979Srwatson if (error) 2764100979Srwatson return (error); 2765100979Srwatson 2766100979Srwatson error = mac_internalize(&intlabel, &newlabel); 2767100979Srwatson if (error) 2768100979Srwatson return (error); 2769100979Srwatson 2770100979Srwatson /* 2771100979Srwatson * XXX: Note that this is a redundant privilege check, since 2772100979Srwatson * policies impose this check themselves if required by the 2773100979Srwatson * policy. Eventually, this should go away. 2774100979Srwatson */ 2775100979Srwatson error = suser_cred(cred, 0); 2776100979Srwatson if (error) 2777100979Srwatson goto out; 2778100979Srwatson 2779100979Srwatson MAC_CHECK(check_ifnet_relabel, cred, ifnet, &ifnet->if_label, 2780100979Srwatson &intlabel); 2781100979Srwatson if (error) 2782100979Srwatson goto out; 2783100979Srwatson 2784100979Srwatson MAC_PERFORM(relabel_ifnet, cred, ifnet, &ifnet->if_label, &intlabel); 2785100979Srwatson 2786100979Srwatsonout: 2787100979Srwatson mac_destroy_temp(&intlabel); 2788100979Srwatson return (error); 2789100979Srwatson} 2790100979Srwatson 2791100979Srwatsonvoid 2792100979Srwatsonmac_create_devfs_vnode(struct devfs_dirent *de, struct vnode *vp) 2793100979Srwatson{ 2794100979Srwatson 2795100979Srwatson MAC_PERFORM(create_devfs_vnode, de, &de->de_label, vp, &vp->v_label); 2796100979Srwatson} 2797100979Srwatson 2798100979Srwatsonvoid 2799100979Srwatsonmac_create_devfs_device(dev_t dev, struct devfs_dirent *de) 2800100979Srwatson{ 2801100979Srwatson 2802100979Srwatson MAC_PERFORM(create_devfs_device, dev, de, &de->de_label); 2803100979Srwatson} 2804100979Srwatson 2805100979Srwatsonstatic int 2806100979Srwatsonmac_stdcreatevnode_ea(struct vnode *vp) 2807100979Srwatson{ 2808100979Srwatson int error; 2809100979Srwatson 2810100979Srwatson MAC_CHECK(stdcreatevnode_ea, vp, &vp->v_label); 2811100979Srwatson 2812100979Srwatson return (error); 2813100979Srwatson} 2814100979Srwatson 2815100979Srwatsonvoid 2816100979Srwatsonmac_create_devfs_directory(char *dirname, int dirnamelen, 2817100979Srwatson struct devfs_dirent *de) 2818100979Srwatson{ 2819100979Srwatson 2820100979Srwatson MAC_PERFORM(create_devfs_directory, dirname, dirnamelen, de, 2821100979Srwatson &de->de_label); 2822100979Srwatson} 2823100979Srwatson 2824100979Srwatson/* 2825100979Srwatson * When a new vnode is created, this call will initialize its label. 2826100979Srwatson */ 2827100979Srwatsonvoid 2828100979Srwatsonmac_create_vnode(struct ucred *cred, struct vnode *parent, 2829100979Srwatson struct vnode *child) 2830100979Srwatson{ 2831100979Srwatson int error; 2832100979Srwatson 2833100979Srwatson ASSERT_VOP_LOCKED(parent, "mac_create_vnode"); 2834100979Srwatson ASSERT_VOP_LOCKED(child, "mac_create_vnode"); 2835100979Srwatson 2836100979Srwatson error = vn_refreshlabel(parent, cred); 2837100979Srwatson if (error) { 2838100979Srwatson printf("mac_create_vnode: vn_refreshlabel returned %d\n", 2839100979Srwatson error); 2840100979Srwatson printf("mac_create_vnode: using old vnode label\n"); 2841100979Srwatson } 2842100979Srwatson 2843100979Srwatson MAC_PERFORM(create_vnode, cred, parent, &parent->v_label, child, 2844100979Srwatson &child->v_label); 2845100979Srwatson} 2846100979Srwatson 2847100979Srwatsonint 2848100979Srwatsonmac_setsockopt_label_set(struct ucred *cred, struct socket *so, 2849100979Srwatson struct mac *extmac) 2850100979Srwatson{ 2851100979Srwatson struct label intlabel; 2852100979Srwatson int error; 2853100979Srwatson 2854100979Srwatson error = mac_internalize(&intlabel, extmac); 2855100979Srwatson if (error) 2856100979Srwatson return (error); 2857100979Srwatson 2858100979Srwatson mac_check_socket_relabel(cred, so, &intlabel); 2859100979Srwatson if (error) { 2860100979Srwatson mac_destroy_temp(&intlabel); 2861100979Srwatson return (error); 2862100979Srwatson } 2863100979Srwatson 2864100979Srwatson mac_relabel_socket(cred, so, &intlabel); 2865100979Srwatson 2866100979Srwatson mac_destroy_temp(&intlabel); 2867100979Srwatson return (0); 2868100979Srwatson} 2869100979Srwatson 2870100979Srwatsonint 2871100979Srwatsonmac_pipe_label_set(struct ucred *cred, struct pipe *pipe, struct label *label) 2872100979Srwatson{ 2873100979Srwatson int error; 2874100979Srwatson 2875100979Srwatson error = mac_check_pipe_relabel(cred, pipe, label); 2876100979Srwatson if (error) 2877100979Srwatson return (error); 2878100979Srwatson 2879100979Srwatson mac_relabel_pipe(cred, pipe, label); 2880100979Srwatson 2881100979Srwatson return (0); 2882100979Srwatson} 2883100979Srwatson 2884100979Srwatsonint 2885100979Srwatsonmac_getsockopt_label_get(struct ucred *cred, struct socket *so, 2886100979Srwatson struct mac *extmac) 2887100979Srwatson{ 2888100979Srwatson 2889100979Srwatson return (mac_externalize(&so->so_label, extmac)); 2890100979Srwatson} 2891100979Srwatson 2892100979Srwatsonint 2893100979Srwatsonmac_getsockopt_peerlabel_get(struct ucred *cred, struct socket *so, 2894100979Srwatson struct mac *extmac) 2895100979Srwatson{ 2896100979Srwatson 2897100979Srwatson return (mac_externalize(&so->so_peerlabel, extmac)); 2898100979Srwatson} 2899100979Srwatson 2900100979Srwatson/* 2901100979Srwatson * Implementation of VOP_SETLABEL() that relies on extended attributes 2902100979Srwatson * to store label data. Can be referenced by filesystems supporting 2903100979Srwatson * extended attributes. 2904100979Srwatson */ 2905100979Srwatsonint 2906100979Srwatsonvop_stdsetlabel_ea(struct vop_setlabel_args *ap) 2907100979Srwatson{ 2908100979Srwatson struct vnode *vp = ap->a_vp; 2909100979Srwatson struct label *intlabel = ap->a_label; 2910100979Srwatson struct mac extmac; 2911100979Srwatson int error; 2912100979Srwatson 2913100979Srwatson ASSERT_VOP_LOCKED(vp, "vop_stdsetlabel_ea"); 2914100979Srwatson 2915100979Srwatson /* 2916100979Srwatson * XXX: Eventually call out to EA check/set calls here. 2917100979Srwatson * Be particularly careful to avoid race conditions, 2918100979Srwatson * consistency problems, and stability problems when 2919100979Srwatson * dealing with multiple EAs. In particular, we require 2920100979Srwatson * the ability to write multiple EAs on the same file in 2921100979Srwatson * a single transaction, which the current EA interface 2922100979Srwatson * does not provide. 2923100979Srwatson */ 2924100979Srwatson 2925100979Srwatson error = mac_externalize(intlabel, &extmac); 2926100979Srwatson if (error) 2927100979Srwatson return (error); 2928100979Srwatson 2929100979Srwatson error = vn_extattr_set(vp, IO_NODELOCKED, 2930100979Srwatson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 2931100979Srwatson sizeof(extmac), (char *)&extmac, curthread); 2932100979Srwatson if (error) 2933100979Srwatson return (error); 2934100979Srwatson 2935100979Srwatson mac_relabel_vnode(ap->a_cred, vp, intlabel); 2936100979Srwatson 2937101308Sjeff vp->v_vflag |= VV_CACHEDLABEL; 2938100979Srwatson 2939100979Srwatson return (0); 2940100979Srwatson} 2941100979Srwatson 2942100979Srwatsonstatic int 2943100979Srwatsonvn_setlabel(struct vnode *vp, struct label *intlabel, struct ucred *cred) 2944100979Srwatson{ 2945100979Srwatson int error; 2946100979Srwatson 2947100979Srwatson if (vp->v_mount == NULL) { 2948100979Srwatson /* printf("vn_setlabel: null v_mount\n"); */ 2949100979Srwatson if (vp->v_tag != VT_NON) 2950100979Srwatson printf("vn_setlabel: null v_mount with non-VT_NON\n"); 2951100979Srwatson return (EBADF); 2952100979Srwatson } 2953100979Srwatson 2954100979Srwatson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) 2955100979Srwatson return (EOPNOTSUPP); 2956100979Srwatson 2957100979Srwatson /* 2958100979Srwatson * Multi-phase commit. First check the policies to confirm the 2959100979Srwatson * change is OK. Then commit via the filesystem. Finally, 2960100979Srwatson * update the actual vnode label. Question: maybe the filesystem 2961100979Srwatson * should update the vnode at the end as part of VOP_SETLABEL()? 2962100979Srwatson */ 2963100979Srwatson error = mac_check_vnode_relabel(cred, vp, intlabel); 2964100979Srwatson if (error) 2965100979Srwatson return (error); 2966100979Srwatson 2967100979Srwatson /* 2968100979Srwatson * VADMIN provides the opportunity for the filesystem to make 2969100979Srwatson * decisions about who is and is not able to modify labels 2970100979Srwatson * and protections on files. This might not be right. We can't 2971100979Srwatson * assume VOP_SETLABEL() will do it, because we might implement 2972100979Srwatson * that as part of vop_stdsetlabel_ea(). 2973100979Srwatson */ 2974100979Srwatson error = VOP_ACCESS(vp, VADMIN, cred, curthread); 2975100979Srwatson if (error) 2976100979Srwatson return (error); 2977100979Srwatson 2978100979Srwatson error = VOP_SETLABEL(vp, intlabel, cred, curthread); 2979100979Srwatson if (error) 2980100979Srwatson return (error); 2981100979Srwatson 2982100979Srwatson return (0); 2983100979Srwatson} 2984100979Srwatson 2985100979Srwatson/* 2986100979Srwatson * MPSAFE 2987100979Srwatson */ 2988100979Srwatsonint 2989100894Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 2990100894Srwatson{ 2991100979Srwatson struct mac extmac; 2992100979Srwatson int error; 2993100894Srwatson 2994100979Srwatson error = mac_externalize(&td->td_ucred->cr_label, &extmac); 2995100979Srwatson if (error == 0) 2996100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 2997100979Srwatson 2998100979Srwatson return (error); 2999100979Srwatson} 3000100979Srwatson 3001100979Srwatson/* 3002100979Srwatson * MPSAFE 3003100979Srwatson */ 3004100979Srwatsonint 3005100979Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3006100979Srwatson{ 3007100979Srwatson struct ucred *newcred, *oldcred; 3008100979Srwatson struct proc *p; 3009100979Srwatson struct mac extmac; 3010100979Srwatson struct label intlabel; 3011100979Srwatson int error; 3012100979Srwatson 3013100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3014100979Srwatson if (error) 3015100979Srwatson return (error); 3016100979Srwatson 3017100979Srwatson error = mac_internalize(&intlabel, &extmac); 3018100979Srwatson if (error) 3019100979Srwatson return (error); 3020100979Srwatson 3021100979Srwatson newcred = crget(); 3022100979Srwatson 3023100979Srwatson p = td->td_proc; 3024100979Srwatson PROC_LOCK(p); 3025100979Srwatson oldcred = p->p_ucred; 3026100979Srwatson 3027100979Srwatson error = mac_check_cred_relabel(oldcred, &intlabel); 3028100979Srwatson if (error) { 3029100979Srwatson PROC_UNLOCK(p); 3030100979Srwatson mac_destroy_temp(&intlabel); 3031100979Srwatson crfree(newcred); 3032100979Srwatson return (error); 3033100979Srwatson } 3034100979Srwatson 3035100979Srwatson setsugid(p); 3036100979Srwatson crcopy(newcred, oldcred); 3037100979Srwatson mac_relabel_cred(newcred, &intlabel); 3038102136Srwatson p->p_ucred = newcred; 3039100979Srwatson 3040102136Srwatson /* 3041102136Srwatson * Grab additional reference for use while revoking mmaps, prior 3042102136Srwatson * to releasing the proc lock and sharing the cred. 3043102136Srwatson */ 3044102136Srwatson crhold(newcred); 3045100979Srwatson PROC_UNLOCK(p); 3046102136Srwatson 3047102136Srwatson mac_cred_mmapped_drop_perms(td, newcred); 3048102136Srwatson 3049102136Srwatson crfree(newcred); /* Free revocation reference. */ 3050100979Srwatson crfree(oldcred); 3051100979Srwatson mac_destroy_temp(&intlabel); 3052100979Srwatson return (0); 3053100979Srwatson} 3054100979Srwatson 3055100979Srwatson/* 3056100979Srwatson * MPSAFE 3057100979Srwatson */ 3058100979Srwatsonint 3059100979Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3060100979Srwatson{ 3061100979Srwatson struct file *fp; 3062100979Srwatson struct mac extmac; 3063100979Srwatson struct vnode *vp; 3064100979Srwatson struct pipe *pipe; 3065100979Srwatson int error; 3066100979Srwatson 3067100979Srwatson mtx_lock(&Giant); 3068100979Srwatson 3069100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3070100979Srwatson if (error) 3071100979Srwatson goto out; 3072100979Srwatson 3073100979Srwatson switch (fp->f_type) { 3074100979Srwatson case DTYPE_FIFO: 3075100979Srwatson case DTYPE_VNODE: 3076100979Srwatson vp = (struct vnode *)fp->f_data; 3077100979Srwatson 3078100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3079100979Srwatson error = vn_refreshlabel(vp, td->td_ucred); 3080100979Srwatson if (error == 0) 3081100979Srwatson error = mac_externalize(&vp->v_label, &extmac); 3082100979Srwatson VOP_UNLOCK(vp, 0, td); 3083100979Srwatson break; 3084100979Srwatson case DTYPE_PIPE: 3085100979Srwatson pipe = (struct pipe *)fp->f_data; 3086100979Srwatson error = mac_externalize(pipe->pipe_label, &extmac); 3087100979Srwatson break; 3088100979Srwatson default: 3089100979Srwatson error = EINVAL; 3090100979Srwatson } 3091100979Srwatson 3092100979Srwatson if (error == 0) 3093100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3094100979Srwatson 3095100979Srwatson fdrop(fp, td); 3096100979Srwatson 3097100979Srwatsonout: 3098100979Srwatson mtx_unlock(&Giant); 3099100979Srwatson return (error); 3100100979Srwatson} 3101100979Srwatson 3102100979Srwatson/* 3103100979Srwatson * MPSAFE 3104100979Srwatson */ 3105100979Srwatsonint 3106100979Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3107100979Srwatson{ 3108100979Srwatson struct nameidata nd; 3109100979Srwatson struct mac extmac; 3110100979Srwatson int error; 3111100979Srwatson 3112100979Srwatson mtx_lock(&Giant); 3113100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3114100979Srwatson SCARG(uap, path_p), td); 3115100979Srwatson error = namei(&nd); 3116100979Srwatson if (error) 3117100979Srwatson goto out; 3118100979Srwatson 3119100979Srwatson error = vn_refreshlabel(nd.ni_vp, td->td_ucred); 3120100979Srwatson if (error == 0) 3121100979Srwatson error = mac_externalize(&nd.ni_vp->v_label, &extmac); 3122100979Srwatson NDFREE(&nd, 0); 3123100979Srwatson if (error) 3124100979Srwatson goto out; 3125100979Srwatson 3126100979Srwatson error = copyout(&extmac, SCARG(uap, mac_p), sizeof(extmac)); 3127100979Srwatson 3128100979Srwatsonout: 3129100979Srwatson mtx_unlock(&Giant); 3130100979Srwatson return (error); 3131100979Srwatson} 3132100979Srwatson 3133100979Srwatson/* 3134100979Srwatson * MPSAFE 3135100979Srwatson */ 3136100979Srwatsonint 3137100979Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3138100979Srwatson{ 3139100979Srwatson struct file *fp; 3140100979Srwatson struct mac extmac; 3141100979Srwatson struct label intlabel; 3142100979Srwatson struct mount *mp; 3143100979Srwatson struct vnode *vp; 3144100979Srwatson struct pipe *pipe; 3145100979Srwatson int error; 3146100979Srwatson 3147100979Srwatson mtx_lock(&Giant); 3148100979Srwatson error = fget(td, SCARG(uap, fd), &fp); 3149100979Srwatson if (error) 3150100979Srwatson goto out1; 3151100979Srwatson 3152100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3153100979Srwatson if (error) 3154100979Srwatson goto out2; 3155100979Srwatson 3156100979Srwatson error = mac_internalize(&intlabel, &extmac); 3157100979Srwatson if (error) 3158100979Srwatson goto out2; 3159100979Srwatson 3160100979Srwatson switch (fp->f_type) { 3161100979Srwatson case DTYPE_FIFO: 3162100979Srwatson case DTYPE_VNODE: 3163100979Srwatson vp = (struct vnode *)fp->f_data; 3164100979Srwatson error = vn_start_write(vp, &mp, V_WAIT | PCATCH); 3165100979Srwatson if (error != 0) 3166100979Srwatson break; 3167100979Srwatson 3168100979Srwatson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 3169100979Srwatson error = vn_setlabel(vp, &intlabel, td->td_ucred); 3170100979Srwatson VOP_UNLOCK(vp, 0, td); 3171100979Srwatson vn_finished_write(mp); 3172100979Srwatson mac_destroy_temp(&intlabel); 3173100979Srwatson break; 3174100979Srwatson case DTYPE_PIPE: 3175100979Srwatson pipe = (struct pipe *)fp->f_data; 3176100979Srwatson error = mac_pipe_label_set(td->td_ucred, pipe, &intlabel); 3177100979Srwatson break; 3178100979Srwatson default: 3179100979Srwatson error = EINVAL; 3180100979Srwatson } 3181100979Srwatson 3182100979Srwatsonout2: 3183100979Srwatson fdrop(fp, td); 3184100979Srwatsonout1: 3185100979Srwatson mtx_unlock(&Giant); 3186100979Srwatson return (error); 3187100979Srwatson} 3188100979Srwatson 3189100979Srwatson/* 3190100979Srwatson * MPSAFE 3191100979Srwatson */ 3192100979Srwatsonint 3193100979Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3194100979Srwatson{ 3195100979Srwatson struct nameidata nd; 3196100979Srwatson struct mac extmac; 3197100979Srwatson struct label intlabel; 3198100979Srwatson struct mount *mp; 3199100979Srwatson int error; 3200100979Srwatson 3201100979Srwatson mtx_lock(&Giant); 3202100979Srwatson 3203100979Srwatson error = copyin(SCARG(uap, mac_p), &extmac, sizeof(extmac)); 3204100979Srwatson if (error) 3205100979Srwatson goto out; 3206100979Srwatson 3207100979Srwatson error = mac_internalize(&intlabel, &extmac); 3208100979Srwatson if (error) 3209100979Srwatson goto out; 3210100979Srwatson 3211100979Srwatson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, 3212100979Srwatson SCARG(uap, path_p), td); 3213100979Srwatson error = namei(&nd); 3214100979Srwatson if (error) 3215100979Srwatson goto out2; 3216100979Srwatson error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH); 3217100979Srwatson if (error) 3218100979Srwatson goto out2; 3219100979Srwatson 3220100979Srwatson error = vn_setlabel(nd.ni_vp, &intlabel, td->td_ucred); 3221100979Srwatson 3222100979Srwatson vn_finished_write(mp); 3223100979Srwatsonout2: 3224100979Srwatson mac_destroy_temp(&intlabel); 3225100979Srwatson NDFREE(&nd, 0); 3226100979Srwatsonout: 3227100979Srwatson mtx_unlock(&Giant); 3228100979Srwatson return (error); 3229100979Srwatson} 3230100979Srwatson 3231102123Srwatsonint 3232102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3233102123Srwatson{ 3234102123Srwatson struct mac_policy_conf *mpc; 3235102123Srwatson char target[MAC_MAX_POLICY_NAME]; 3236102123Srwatson int error; 3237102123Srwatson 3238102123Srwatson error = copyinstr(SCARG(uap, policy), target, sizeof(target), NULL); 3239102123Srwatson if (error) 3240102123Srwatson return (error); 3241102123Srwatson 3242102123Srwatson error = ENOSYS; 3243102123Srwatson MAC_POLICY_LIST_BUSY(); 3244102123Srwatson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { 3245102123Srwatson if (strcmp(mpc->mpc_name, target) == 0 && 3246102123Srwatson mpc->mpc_ops->mpo_syscall != NULL) { 3247102123Srwatson error = mpc->mpc_ops->mpo_syscall(td, 3248102123Srwatson SCARG(uap, call), SCARG(uap, arg)); 3249102123Srwatson goto out; 3250102123Srwatson } 3251102123Srwatson } 3252102123Srwatson 3253102123Srwatsonout: 3254102123Srwatson MAC_POLICY_LIST_UNBUSY(); 3255102123Srwatson return (error); 3256102123Srwatson} 3257102123Srwatson 3258100979SrwatsonSYSINIT(mac, SI_SUB_MAC, SI_ORDER_FIRST, mac_init, NULL); 3259100979SrwatsonSYSINIT(mac_late, SI_SUB_MAC_LATE, SI_ORDER_FIRST, mac_late_init, NULL); 3260100979Srwatson 3261100979Srwatson#else /* !MAC */ 3262100979Srwatson 3263100979Srwatsonint 3264100979Srwatson__mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 3265100979Srwatson{ 3266100979Srwatson 3267100894Srwatson return (ENOSYS); 3268100894Srwatson} 3269100894Srwatson 3270100894Srwatsonint 3271100894Srwatson__mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 3272100894Srwatson{ 3273100894Srwatson 3274100894Srwatson return (ENOSYS); 3275100894Srwatson} 3276100894Srwatson 3277100894Srwatsonint 3278100894Srwatson__mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 3279100894Srwatson{ 3280100894Srwatson 3281100894Srwatson return (ENOSYS); 3282100894Srwatson} 3283100894Srwatson 3284100894Srwatsonint 3285100894Srwatson__mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 3286100894Srwatson{ 3287100894Srwatson 3288100894Srwatson return (ENOSYS); 3289100894Srwatson} 3290100894Srwatson 3291100894Srwatsonint 3292100894Srwatson__mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 3293100894Srwatson{ 3294100894Srwatson 3295100894Srwatson return (ENOSYS); 3296100894Srwatson} 3297100894Srwatson 3298100894Srwatsonint 3299100894Srwatson__mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 3300100894Srwatson{ 3301100894Srwatson 3302100894Srwatson return (ENOSYS); 3303100894Srwatson} 3304100979Srwatson 3305102123Srwatsonint 3306102123Srwatsonmac_syscall(struct thread *td, struct mac_syscall_args *uap) 3307102123Srwatson{ 3308102123Srwatson 3309102123Srwatson return (ENOSYS); 3310102123Srwatson} 3311102123Srwatson 3312100979Srwatson#endif /* !MAC */ 3313