17bc82500SRobert Watson /*- 27bc82500SRobert Watson * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson 37bc82500SRobert Watson * Copyright (c) 2001 Ilmar S. Habibulin 47bc82500SRobert Watson * Copyright (c) 2001, 2002 Networks Associates Technology, Inc. 57bc82500SRobert Watson * All rights reserved. 67bc82500SRobert Watson * 77bc82500SRobert Watson * This software was developed by Robert Watson and Ilmar Habibulin for the 87bc82500SRobert Watson * TrustedBSD Project. 97bc82500SRobert Watson * 107bc82500SRobert Watson * This software was developed for the FreeBSD Project in part by NAI Labs, 117bc82500SRobert Watson * the Security Research Division of Network Associates, Inc. under 127bc82500SRobert Watson * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA 137bc82500SRobert Watson * CHATS research program. 147bc82500SRobert Watson * 157bc82500SRobert Watson * Redistribution and use in source and binary forms, with or without 167bc82500SRobert Watson * modification, are permitted provided that the following conditions 177bc82500SRobert Watson * are met: 187bc82500SRobert Watson * 1. Redistributions of source code must retain the above copyright 197bc82500SRobert Watson * notice, this list of conditions and the following disclaimer. 207bc82500SRobert Watson * 2. Redistributions in binary form must reproduce the above copyright 217bc82500SRobert Watson * notice, this list of conditions and the following disclaimer in the 227bc82500SRobert Watson * documentation and/or other materials provided with the distribution. 237bc82500SRobert Watson * 3. The names of the authors may not be used to endorse or promote 247bc82500SRobert Watson * products derived from this software without specific prior written 257bc82500SRobert Watson * permission. 267bc82500SRobert Watson * 277bc82500SRobert Watson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 287bc82500SRobert Watson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 297bc82500SRobert Watson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 307bc82500SRobert Watson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 317bc82500SRobert Watson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 327bc82500SRobert Watson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 337bc82500SRobert Watson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 347bc82500SRobert Watson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 357bc82500SRobert Watson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 367bc82500SRobert Watson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 377bc82500SRobert Watson * SUCH DAMAGE. 387bc82500SRobert Watson * 397bc82500SRobert Watson * $FreeBSD$ 407bc82500SRobert Watson */ 417bc82500SRobert Watson /* 427bc82500SRobert Watson * Developed by the TrustedBSD Project. 437bc82500SRobert Watson * 447bc82500SRobert Watson * Framework for extensible kernel access control. Kernel and userland 457bc82500SRobert Watson * interface to the framework, policy registration and composition. 467bc82500SRobert Watson */ 477bc82500SRobert Watson 487bc82500SRobert Watson #include "opt_mac.h" 49328048bcSPoul-Henning Kamp #include "opt_devfs.h" 50f9d0d524SRobert Watson 517bc82500SRobert Watson #include <sys/param.h> 5295fab37eSRobert Watson #include <sys/extattr.h> 5395fab37eSRobert Watson #include <sys/kernel.h> 5495fab37eSRobert Watson #include <sys/lock.h> 55b656366bSBruce Evans #include <sys/malloc.h> 5695fab37eSRobert Watson #include <sys/mutex.h> 5795fab37eSRobert Watson #include <sys/mac.h> 587ba28492SRobert Watson #include <sys/module.h> 5995fab37eSRobert Watson #include <sys/proc.h> 6095fab37eSRobert Watson #include <sys/systm.h> 617bc82500SRobert Watson #include <sys/sysproto.h> 627bc82500SRobert Watson #include <sys/sysent.h> 6395fab37eSRobert Watson #include <sys/vnode.h> 6495fab37eSRobert Watson #include <sys/mount.h> 6595fab37eSRobert Watson #include <sys/file.h> 6695fab37eSRobert Watson #include <sys/namei.h> 6795fab37eSRobert Watson #include <sys/socket.h> 6895fab37eSRobert Watson #include <sys/pipe.h> 6995fab37eSRobert Watson #include <sys/socketvar.h> 7095fab37eSRobert Watson #include <sys/sysctl.h> 7195fab37eSRobert Watson 7295fab37eSRobert Watson #include <vm/vm.h> 7395fab37eSRobert Watson #include <vm/pmap.h> 7495fab37eSRobert Watson #include <vm/vm_map.h> 7595fab37eSRobert Watson #include <vm/vm_object.h> 7695fab37eSRobert Watson 7795fab37eSRobert Watson #include <sys/mac_policy.h> 7895fab37eSRobert Watson 7995fab37eSRobert Watson #include <fs/devfs/devfs.h> 8095fab37eSRobert Watson 8195fab37eSRobert Watson #include <net/bpfdesc.h> 8295fab37eSRobert Watson #include <net/if.h> 8395fab37eSRobert Watson #include <net/if_var.h> 8495fab37eSRobert Watson 8595fab37eSRobert Watson #include <netinet/in.h> 8695fab37eSRobert Watson #include <netinet/ip_var.h> 8795fab37eSRobert Watson 8895fab37eSRobert Watson #ifdef MAC 8995fab37eSRobert Watson 907ba28492SRobert Watson /* 917ba28492SRobert Watson * Declare that the kernel provides MAC support, version 1. This permits 927ba28492SRobert Watson * modules to refuse to be loaded if the necessary support isn't present, 937ba28492SRobert Watson * even if it's pre-boot. 947ba28492SRobert Watson */ 957ba28492SRobert Watson MODULE_VERSION(kernel_mac_support, 1); 967ba28492SRobert Watson 9795fab37eSRobert Watson SYSCTL_DECL(_security); 9895fab37eSRobert Watson 9995fab37eSRobert Watson SYSCTL_NODE(_security, OID_AUTO, mac, CTLFLAG_RW, 0, 10095fab37eSRobert Watson "TrustedBSD MAC policy controls"); 101b2f0927aSRobert Watson 10295fab37eSRobert Watson #if MAC_MAX_POLICIES > 32 10395fab37eSRobert Watson #error "MAC_MAX_POLICIES too large" 10495fab37eSRobert Watson #endif 105a13c67daSRobert Watson 10695fab37eSRobert Watson static unsigned int mac_max_policies = MAC_MAX_POLICIES; 10795fab37eSRobert Watson static unsigned int mac_policy_offsets_free = (1 << MAC_MAX_POLICIES) - 1; 10895fab37eSRobert Watson SYSCTL_UINT(_security_mac, OID_AUTO, max_policies, CTLFLAG_RD, 10995fab37eSRobert Watson &mac_max_policies, 0, ""); 11095fab37eSRobert Watson 11195fab37eSRobert Watson static int mac_late = 0; 11295fab37eSRobert Watson 11395fab37eSRobert Watson static int mac_enforce_fs = 1; 11495fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_fs, CTLFLAG_RW, 11595fab37eSRobert Watson &mac_enforce_fs, 0, "Enforce MAC policy on file system objects"); 11695fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_fs", &mac_enforce_fs); 11795fab37eSRobert Watson 11895fab37eSRobert Watson static int mac_enforce_network = 1; 11995fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_network, CTLFLAG_RW, 12095fab37eSRobert Watson &mac_enforce_network, 0, "Enforce MAC policy on network packets"); 12195fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_network", &mac_enforce_network); 12295fab37eSRobert Watson 123b88c98f6SRobert Watson static int mac_enforce_pipe = 1; 124b88c98f6SRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_pipe, CTLFLAG_RW, 125b88c98f6SRobert Watson &mac_enforce_pipe, 0, "Enforce MAC policy on pipe operations"); 126c031391bSRobert Watson TUNABLE_INT("security.mac.enforce_pipe", &mac_enforce_pipe); 127b88c98f6SRobert Watson 12895fab37eSRobert Watson static int mac_enforce_process = 1; 12995fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_process, CTLFLAG_RW, 13095fab37eSRobert Watson &mac_enforce_process, 0, "Enforce MAC policy on inter-process operations"); 13195fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_process", &mac_enforce_process); 13295fab37eSRobert Watson 13395fab37eSRobert Watson static int mac_enforce_socket = 1; 13495fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_socket, CTLFLAG_RW, 13595fab37eSRobert Watson &mac_enforce_socket, 0, "Enforce MAC policy on socket operations"); 13695fab37eSRobert Watson TUNABLE_INT("security.mac.enforce_socket", &mac_enforce_socket); 13795fab37eSRobert Watson 138ca7850c3SRobert Watson static int mac_enforce_vm = 1; 139ca7850c3SRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, enforce_vm, CTLFLAG_RW, 140ca7850c3SRobert Watson &mac_enforce_vm, 0, "Enforce MAC policy on vm operations"); 141c031391bSRobert Watson TUNABLE_INT("security.mac.enforce_vm", &mac_enforce_vm); 142ca7850c3SRobert Watson 14395fab37eSRobert Watson static int mac_label_size = sizeof(struct mac); 14495fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, label_size, CTLFLAG_RD, 14595fab37eSRobert Watson &mac_label_size, 0, "Pre-compiled MAC label size"); 14695fab37eSRobert Watson 14795fab37eSRobert Watson static int mac_cache_fslabel_in_vnode = 1; 14895fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, cache_fslabel_in_vnode, CTLFLAG_RW, 14995fab37eSRobert Watson &mac_cache_fslabel_in_vnode, 0, "Cache mount fslabel in vnode"); 15095fab37eSRobert Watson TUNABLE_INT("security.mac.cache_fslabel_in_vnode", 15195fab37eSRobert Watson &mac_cache_fslabel_in_vnode); 15295fab37eSRobert Watson 15395fab37eSRobert Watson static int mac_vnode_label_cache_hits = 0; 15495fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_hits, CTLFLAG_RD, 15595fab37eSRobert Watson &mac_vnode_label_cache_hits, 0, "Cache hits on vnode labels"); 15695fab37eSRobert Watson static int mac_vnode_label_cache_misses = 0; 15795fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, vnode_label_cache_misses, CTLFLAG_RD, 15895fab37eSRobert Watson &mac_vnode_label_cache_misses, 0, "Cache misses on vnode labels"); 159c0f39905SRobert Watson 160c0f39905SRobert Watson static int mac_mmap_revocation = 1; 161c0f39905SRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation, CTLFLAG_RW, 162c0f39905SRobert Watson &mac_mmap_revocation, 0, "Revoke mmap access to files on subject " 163c0f39905SRobert Watson "relabel"); 16499fa64f8SRobert Watson static int mac_mmap_revocation_via_cow = 0; 16595fab37eSRobert Watson SYSCTL_INT(_security_mac, OID_AUTO, mmap_revocation_via_cow, CTLFLAG_RW, 16695fab37eSRobert Watson &mac_mmap_revocation_via_cow, 0, "Revoke mmap access to files via " 16795fab37eSRobert Watson "copy-on-write semantics, or by removing all write access"); 16895fab37eSRobert Watson 169f050add5SRobert Watson #ifdef MAC_DEBUG 1706be0c25eSRobert Watson SYSCTL_NODE(_security_mac, OID_AUTO, debug, CTLFLAG_RW, 0, 1716be0c25eSRobert Watson "TrustedBSD MAC debug info"); 1726be0c25eSRobert Watson 1736be0c25eSRobert Watson static int mac_debug_label_fallback = 0; 1746be0c25eSRobert Watson SYSCTL_INT(_security_mac_debug, OID_AUTO, label_fallback, CTLFLAG_RW, 1756be0c25eSRobert Watson &mac_debug_label_fallback, 0, "Filesystems should fall back to fs label" 1766be0c25eSRobert Watson "when label is corrupted."); 1776be0c25eSRobert Watson TUNABLE_INT("security.mac.debug_label_fallback", 1786be0c25eSRobert Watson &mac_debug_label_fallback); 1796be0c25eSRobert Watson 180b2f0927aSRobert Watson SYSCTL_NODE(_security_mac_debug, OID_AUTO, counters, CTLFLAG_RW, 0, 181b2f0927aSRobert Watson "TrustedBSD MAC object counters"); 182b2f0927aSRobert Watson 18395fab37eSRobert Watson static unsigned int nmacmbufs, nmaccreds, nmacifnets, nmacbpfdescs, 18495fab37eSRobert Watson nmacsockets, nmacmounts, nmactemp, nmacvnodes, nmacdevfsdirents, 18595fab37eSRobert Watson nmacipqs, nmacpipes; 186b2f0927aSRobert Watson 187b2f0927aSRobert Watson SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, mbufs, CTLFLAG_RD, 18895fab37eSRobert Watson &nmacmbufs, 0, "number of mbufs in use"); 189b2f0927aSRobert Watson SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, creds, CTLFLAG_RD, 19095fab37eSRobert Watson &nmaccreds, 0, "number of ucreds in use"); 191b2f0927aSRobert Watson SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, ifnets, CTLFLAG_RD, 19295fab37eSRobert Watson &nmacifnets, 0, "number of ifnets in use"); 193b2f0927aSRobert Watson SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, ipqs, CTLFLAG_RD, 19495fab37eSRobert Watson &nmacipqs, 0, "number of ipqs in use"); 195b2f0927aSRobert Watson SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, bpfdescs, CTLFLAG_RD, 19695fab37eSRobert Watson &nmacbpfdescs, 0, "number of bpfdescs in use"); 197b2f0927aSRobert Watson SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, sockets, CTLFLAG_RD, 19895fab37eSRobert Watson &nmacsockets, 0, "number of sockets in use"); 199b2f0927aSRobert Watson SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, pipes, CTLFLAG_RD, 20095fab37eSRobert Watson &nmacpipes, 0, "number of pipes in use"); 201b2f0927aSRobert Watson SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, mounts, CTLFLAG_RD, 20295fab37eSRobert Watson &nmacmounts, 0, "number of mounts in use"); 203b2f0927aSRobert Watson SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, temp, CTLFLAG_RD, 20495fab37eSRobert Watson &nmactemp, 0, "number of temporary labels in use"); 205b2f0927aSRobert Watson SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, vnodes, CTLFLAG_RD, 20695fab37eSRobert Watson &nmacvnodes, 0, "number of vnodes in use"); 207b2f0927aSRobert Watson SYSCTL_UINT(_security_mac_debug_counters, OID_AUTO, devfsdirents, CTLFLAG_RD, 20895fab37eSRobert Watson &nmacdevfsdirents, 0, "number of devfs dirents inuse"); 209f050add5SRobert Watson #endif 21095fab37eSRobert Watson 21195fab37eSRobert Watson static int error_select(int error1, int error2); 212f7b951a8SRobert Watson static int mac_externalize_vnode_oldmac(struct label *label, 213f7b951a8SRobert Watson struct oldmac *extmac); 21495fab37eSRobert Watson static int mac_policy_register(struct mac_policy_conf *mpc); 21595fab37eSRobert Watson static int mac_policy_unregister(struct mac_policy_conf *mpc); 21695fab37eSRobert Watson 21795fab37eSRobert Watson static int mac_stdcreatevnode_ea(struct vnode *vp); 218e183f80eSRobert Watson static void mac_check_vnode_mmap_downgrade(struct ucred *cred, 219e183f80eSRobert Watson struct vnode *vp, int *prot); 22095fab37eSRobert Watson static void mac_cred_mmapped_drop_perms_recurse(struct thread *td, 22195fab37eSRobert Watson struct ucred *cred, struct vm_map *map); 22295fab37eSRobert Watson 22383985c26SRobert Watson static void mac_destroy_socket_label(struct label *label); 22483985c26SRobert Watson 22595fab37eSRobert Watson MALLOC_DEFINE(M_MACOPVEC, "macopvec", "MAC policy operation vector"); 22695fab37eSRobert Watson MALLOC_DEFINE(M_MACPIPELABEL, "macpipelabel", "MAC labels for pipes"); 227f7b951a8SRobert Watson MALLOC_DEFINE(M_MACTEMP, "mactemp", "MAC temporary label storage"); 22895fab37eSRobert Watson 22995fab37eSRobert Watson /* 23095fab37eSRobert Watson * mac_policy_list_lock protects the consistency of 'mac_policy_list', 23195fab37eSRobert Watson * the linked list of attached policy modules. Read-only consumers of 23295fab37eSRobert Watson * the list must acquire a shared lock for the duration of their use; 23395fab37eSRobert Watson * writers must acquire an exclusive lock. Note that for compound 23495fab37eSRobert Watson * operations, locks should be held for the entire compound operation, 23595fab37eSRobert Watson * and that this is not yet done for relabel requests. 23695fab37eSRobert Watson */ 23795fab37eSRobert Watson static struct mtx mac_policy_list_lock; 23895fab37eSRobert Watson static LIST_HEAD(, mac_policy_conf) mac_policy_list; 23995fab37eSRobert Watson static int mac_policy_list_busy; 24095fab37eSRobert Watson #define MAC_POLICY_LIST_LOCKINIT() mtx_init(&mac_policy_list_lock, \ 24195fab37eSRobert Watson "mac_policy_list_lock", NULL, MTX_DEF); 24295fab37eSRobert Watson #define MAC_POLICY_LIST_LOCK() mtx_lock(&mac_policy_list_lock); 24395fab37eSRobert Watson #define MAC_POLICY_LIST_UNLOCK() mtx_unlock(&mac_policy_list_lock); 24495fab37eSRobert Watson 24595fab37eSRobert Watson #define MAC_POLICY_LIST_BUSY() do { \ 24695fab37eSRobert Watson MAC_POLICY_LIST_LOCK(); \ 24795fab37eSRobert Watson mac_policy_list_busy++; \ 24895fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); \ 24995fab37eSRobert Watson } while (0) 25095fab37eSRobert Watson 25195fab37eSRobert Watson #define MAC_POLICY_LIST_UNBUSY() do { \ 25295fab37eSRobert Watson MAC_POLICY_LIST_LOCK(); \ 25395fab37eSRobert Watson mac_policy_list_busy--; \ 25495fab37eSRobert Watson if (mac_policy_list_busy < 0) \ 25595fab37eSRobert Watson panic("Extra mac_policy_list_busy--"); \ 25695fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); \ 25795fab37eSRobert Watson } while (0) 25895fab37eSRobert Watson 25995fab37eSRobert Watson /* 26095fab37eSRobert Watson * MAC_CHECK performs the designated check by walking the policy 26195fab37eSRobert Watson * module list and checking with each as to how it feels about the 26295fab37eSRobert Watson * request. Note that it returns its value via 'error' in the scope 26395fab37eSRobert Watson * of the caller. 26495fab37eSRobert Watson */ 26595fab37eSRobert Watson #define MAC_CHECK(check, args...) do { \ 26695fab37eSRobert Watson struct mac_policy_conf *mpc; \ 26795fab37eSRobert Watson \ 26895fab37eSRobert Watson error = 0; \ 26995fab37eSRobert Watson MAC_POLICY_LIST_BUSY(); \ 27095fab37eSRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 27195fab37eSRobert Watson if (mpc->mpc_ops->mpo_ ## check != NULL) \ 27295fab37eSRobert Watson error = error_select( \ 27395fab37eSRobert Watson mpc->mpc_ops->mpo_ ## check (args), \ 27495fab37eSRobert Watson error); \ 27595fab37eSRobert Watson } \ 27695fab37eSRobert Watson MAC_POLICY_LIST_UNBUSY(); \ 27795fab37eSRobert Watson } while (0) 27895fab37eSRobert Watson 27995fab37eSRobert Watson /* 28095fab37eSRobert Watson * MAC_BOOLEAN performs the designated boolean composition by walking 28195fab37eSRobert Watson * the module list, invoking each instance of the operation, and 28295fab37eSRobert Watson * combining the results using the passed C operator. Note that it 28395fab37eSRobert Watson * returns its value via 'result' in the scope of the caller, which 28495fab37eSRobert Watson * should be initialized by the caller in a meaningful way to get 28595fab37eSRobert Watson * a meaningful result. 28695fab37eSRobert Watson */ 28795fab37eSRobert Watson #define MAC_BOOLEAN(operation, composition, args...) do { \ 28895fab37eSRobert Watson struct mac_policy_conf *mpc; \ 28995fab37eSRobert Watson \ 29095fab37eSRobert Watson MAC_POLICY_LIST_BUSY(); \ 29195fab37eSRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 29295fab37eSRobert Watson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 29395fab37eSRobert Watson result = result composition \ 29495fab37eSRobert Watson mpc->mpc_ops->mpo_ ## operation (args); \ 29595fab37eSRobert Watson } \ 29695fab37eSRobert Watson MAC_POLICY_LIST_UNBUSY(); \ 29795fab37eSRobert Watson } while (0) 29895fab37eSRobert Watson 299f7b951a8SRobert Watson #define MAC_EXTERNALIZE(type, label, elementlist, outbuf, \ 300f7b951a8SRobert Watson outbuflen) do { \ 301f7b951a8SRobert Watson char *curptr, *curptr_start, *element_name, *element_temp; \ 302f7b951a8SRobert Watson size_t left, left_start, len; \ 303f7b951a8SRobert Watson int claimed, first, first_start, ignorenotfound; \ 304f7b951a8SRobert Watson \ 305f7b951a8SRobert Watson error = 0; \ 306f7b951a8SRobert Watson element_temp = elementlist; \ 307f7b951a8SRobert Watson curptr = outbuf; \ 308f7b951a8SRobert Watson curptr[0] = '\0'; \ 309f7b951a8SRobert Watson left = outbuflen; \ 310f7b951a8SRobert Watson first = 1; \ 311f7b951a8SRobert Watson while ((element_name = strsep(&element_temp, ",")) != NULL) { \ 312f7b951a8SRobert Watson curptr_start = curptr; \ 313f7b951a8SRobert Watson left_start = left; \ 314f7b951a8SRobert Watson first_start = first; \ 315f7b951a8SRobert Watson if (element_name[0] == '?') { \ 316f7b951a8SRobert Watson element_name++; \ 317f7b951a8SRobert Watson ignorenotfound = 1; \ 318f7b951a8SRobert Watson } else \ 319f7b951a8SRobert Watson ignorenotfound = 0; \ 320f7b951a8SRobert Watson claimed = 0; \ 321f7b951a8SRobert Watson if (first) { \ 322f7b951a8SRobert Watson len = snprintf(curptr, left, "%s/", \ 323f7b951a8SRobert Watson element_name); \ 324f7b951a8SRobert Watson first = 0; \ 325f7b951a8SRobert Watson } else \ 326f7b951a8SRobert Watson len = snprintf(curptr, left, ",%s/", \ 327f7b951a8SRobert Watson element_name); \ 328f7b951a8SRobert Watson if (len >= left) { \ 329f7b951a8SRobert Watson error = EINVAL; /* XXXMAC: E2BIG */ \ 330f7b951a8SRobert Watson break; \ 331f7b951a8SRobert Watson } \ 332f7b951a8SRobert Watson curptr += len; \ 333f7b951a8SRobert Watson left -= len; \ 334f7b951a8SRobert Watson \ 335f7b951a8SRobert Watson MAC_CHECK(externalize_ ## type, label, element_name, \ 336f7b951a8SRobert Watson curptr, left, &len, &claimed); \ 337f7b951a8SRobert Watson if (error) \ 338f7b951a8SRobert Watson break; \ 339f7b951a8SRobert Watson if (claimed == 1) { \ 340f7b951a8SRobert Watson if (len >= outbuflen) { \ 341f7b951a8SRobert Watson error = EINVAL; /* XXXMAC: E2BIG */ \ 342f7b951a8SRobert Watson break; \ 343f7b951a8SRobert Watson } \ 344f7b951a8SRobert Watson curptr += len; \ 345f7b951a8SRobert Watson left -= len; \ 346f7b951a8SRobert Watson } else if (claimed == 0 && ignorenotfound) { \ 347f7b951a8SRobert Watson /* \ 348f7b951a8SRobert Watson * Revert addition of the label element \ 349f7b951a8SRobert Watson * name. \ 350f7b951a8SRobert Watson */ \ 351f7b951a8SRobert Watson curptr = curptr_start; \ 352f7b951a8SRobert Watson *curptr = '\0'; \ 353f7b951a8SRobert Watson left = left_start; \ 354f7b951a8SRobert Watson first = first_start; \ 355f7b951a8SRobert Watson } else { \ 356f7b951a8SRobert Watson error = EINVAL; /* XXXMAC: ENOLABEL */ \ 357f7b951a8SRobert Watson break; \ 358f7b951a8SRobert Watson } \ 359f7b951a8SRobert Watson } \ 360f7b951a8SRobert Watson } while (0) 361f7b951a8SRobert Watson 362f7b951a8SRobert Watson #define MAC_INTERNALIZE(type, label, instring) do { \ 363f7b951a8SRobert Watson char *element, *element_name, *element_data; \ 364f7b951a8SRobert Watson int claimed; \ 365f7b951a8SRobert Watson \ 366f7b951a8SRobert Watson error = 0; \ 367f7b951a8SRobert Watson element = instring; \ 368f7b951a8SRobert Watson while ((element_name = strsep(&element, ",")) != NULL) { \ 369f7b951a8SRobert Watson element_data = element_name; \ 370f7b951a8SRobert Watson element_name = strsep(&element_data, "/"); \ 371f7b951a8SRobert Watson if (element_data == NULL) { \ 372f7b951a8SRobert Watson error = EINVAL; \ 373f7b951a8SRobert Watson break; \ 374f7b951a8SRobert Watson } \ 375f7b951a8SRobert Watson claimed = 0; \ 376f7b951a8SRobert Watson MAC_CHECK(internalize_ ## type, label, element_name, \ 377f7b951a8SRobert Watson element_data, &claimed); \ 378f7b951a8SRobert Watson if (error) \ 379f7b951a8SRobert Watson break; \ 380f7b951a8SRobert Watson if (claimed != 1) { \ 381f7b951a8SRobert Watson /* XXXMAC: Another error here? */ \ 382f7b951a8SRobert Watson error = EINVAL; \ 383f7b951a8SRobert Watson break; \ 384f7b951a8SRobert Watson } \ 385f7b951a8SRobert Watson } \ 386f7b951a8SRobert Watson } while (0) 387f7b951a8SRobert Watson 38895fab37eSRobert Watson /* 38995fab37eSRobert Watson * MAC_PERFORM performs the designated operation by walking the policy 39095fab37eSRobert Watson * module list and invoking that operation for each policy. 39195fab37eSRobert Watson */ 39295fab37eSRobert Watson #define MAC_PERFORM(operation, args...) do { \ 39395fab37eSRobert Watson struct mac_policy_conf *mpc; \ 39495fab37eSRobert Watson \ 39595fab37eSRobert Watson MAC_POLICY_LIST_BUSY(); \ 39695fab37eSRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { \ 39795fab37eSRobert Watson if (mpc->mpc_ops->mpo_ ## operation != NULL) \ 39895fab37eSRobert Watson mpc->mpc_ops->mpo_ ## operation (args); \ 39995fab37eSRobert Watson } \ 40095fab37eSRobert Watson MAC_POLICY_LIST_UNBUSY(); \ 40195fab37eSRobert Watson } while (0) 40295fab37eSRobert Watson 40395fab37eSRobert Watson /* 40495fab37eSRobert Watson * Initialize the MAC subsystem, including appropriate SMP locks. 40595fab37eSRobert Watson */ 40695fab37eSRobert Watson static void 40795fab37eSRobert Watson mac_init(void) 40895fab37eSRobert Watson { 40995fab37eSRobert Watson 41095fab37eSRobert Watson LIST_INIT(&mac_policy_list); 41195fab37eSRobert Watson MAC_POLICY_LIST_LOCKINIT(); 41295fab37eSRobert Watson } 41395fab37eSRobert Watson 41495fab37eSRobert Watson /* 41595fab37eSRobert Watson * For the purposes of modules that want to know if they were loaded 41695fab37eSRobert Watson * "early", set the mac_late flag once we've processed modules either 41795fab37eSRobert Watson * linked into the kernel, or loaded before the kernel startup. 41895fab37eSRobert Watson */ 41995fab37eSRobert Watson static void 42095fab37eSRobert Watson mac_late_init(void) 42195fab37eSRobert Watson { 42295fab37eSRobert Watson 42395fab37eSRobert Watson mac_late = 1; 42495fab37eSRobert Watson } 42595fab37eSRobert Watson 42695fab37eSRobert Watson /* 42795fab37eSRobert Watson * Allow MAC policy modules to register during boot, etc. 42895fab37eSRobert Watson */ 42995fab37eSRobert Watson int 43095fab37eSRobert Watson mac_policy_modevent(module_t mod, int type, void *data) 43195fab37eSRobert Watson { 43295fab37eSRobert Watson struct mac_policy_conf *mpc; 43395fab37eSRobert Watson int error; 43495fab37eSRobert Watson 43595fab37eSRobert Watson error = 0; 43695fab37eSRobert Watson mpc = (struct mac_policy_conf *) data; 43795fab37eSRobert Watson 43895fab37eSRobert Watson switch (type) { 43995fab37eSRobert Watson case MOD_LOAD: 44095fab37eSRobert Watson if (mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_NOTLATE && 44195fab37eSRobert Watson mac_late) { 44295fab37eSRobert Watson printf("mac_policy_modevent: can't load %s policy " 44395fab37eSRobert Watson "after booting\n", mpc->mpc_name); 44495fab37eSRobert Watson error = EBUSY; 44595fab37eSRobert Watson break; 44695fab37eSRobert Watson } 44795fab37eSRobert Watson error = mac_policy_register(mpc); 44895fab37eSRobert Watson break; 44995fab37eSRobert Watson case MOD_UNLOAD: 45095fab37eSRobert Watson /* Don't unregister the module if it was never registered. */ 45195fab37eSRobert Watson if ((mpc->mpc_runtime_flags & MPC_RUNTIME_FLAG_REGISTERED) 45295fab37eSRobert Watson != 0) 45395fab37eSRobert Watson error = mac_policy_unregister(mpc); 45495fab37eSRobert Watson else 45595fab37eSRobert Watson error = 0; 45695fab37eSRobert Watson break; 45795fab37eSRobert Watson default: 45895fab37eSRobert Watson break; 45995fab37eSRobert Watson } 46095fab37eSRobert Watson 46195fab37eSRobert Watson return (error); 46295fab37eSRobert Watson } 46395fab37eSRobert Watson 46495fab37eSRobert Watson static int 46595fab37eSRobert Watson mac_policy_register(struct mac_policy_conf *mpc) 46695fab37eSRobert Watson { 46795fab37eSRobert Watson struct mac_policy_conf *tmpc; 46895fab37eSRobert Watson struct mac_policy_op_entry *mpe; 46995fab37eSRobert Watson int slot; 47095fab37eSRobert Watson 471cc51a2b5SRobert Watson MALLOC(mpc->mpc_ops, struct mac_policy_ops *, sizeof(*mpc->mpc_ops), 472cc51a2b5SRobert Watson M_MACOPVEC, M_WAITOK | M_ZERO); 47395fab37eSRobert Watson for (mpe = mpc->mpc_entries; mpe->mpe_constant != MAC_OP_LAST; mpe++) { 47495fab37eSRobert Watson switch (mpe->mpe_constant) { 47595fab37eSRobert Watson case MAC_OP_LAST: 47695fab37eSRobert Watson /* 47795fab37eSRobert Watson * Doesn't actually happen, but this allows checking 47895fab37eSRobert Watson * that all enumerated values are handled. 47995fab37eSRobert Watson */ 48095fab37eSRobert Watson break; 48195fab37eSRobert Watson case MAC_DESTROY: 48295fab37eSRobert Watson mpc->mpc_ops->mpo_destroy = 48395fab37eSRobert Watson mpe->mpe_function; 48495fab37eSRobert Watson break; 48595fab37eSRobert Watson case MAC_INIT: 48695fab37eSRobert Watson mpc->mpc_ops->mpo_init = 48795fab37eSRobert Watson mpe->mpe_function; 48895fab37eSRobert Watson break; 48927f2eac7SRobert Watson case MAC_SYSCALL: 49027f2eac7SRobert Watson mpc->mpc_ops->mpo_syscall = 49127f2eac7SRobert Watson mpe->mpe_function; 49227f2eac7SRobert Watson break; 49396adb909SRobert Watson case MAC_INIT_BPFDESC_LABEL: 49496adb909SRobert Watson mpc->mpc_ops->mpo_init_bpfdesc_label = 49595fab37eSRobert Watson mpe->mpe_function; 49695fab37eSRobert Watson break; 49796adb909SRobert Watson case MAC_INIT_CRED_LABEL: 49896adb909SRobert Watson mpc->mpc_ops->mpo_init_cred_label = 49995fab37eSRobert Watson mpe->mpe_function; 50095fab37eSRobert Watson break; 50196adb909SRobert Watson case MAC_INIT_DEVFSDIRENT_LABEL: 50296adb909SRobert Watson mpc->mpc_ops->mpo_init_devfsdirent_label = 50395fab37eSRobert Watson mpe->mpe_function; 50495fab37eSRobert Watson break; 50596adb909SRobert Watson case MAC_INIT_IFNET_LABEL: 50696adb909SRobert Watson mpc->mpc_ops->mpo_init_ifnet_label = 50795fab37eSRobert Watson mpe->mpe_function; 50895fab37eSRobert Watson break; 50996adb909SRobert Watson case MAC_INIT_IPQ_LABEL: 51096adb909SRobert Watson mpc->mpc_ops->mpo_init_ipq_label = 51195fab37eSRobert Watson mpe->mpe_function; 51295fab37eSRobert Watson break; 51396adb909SRobert Watson case MAC_INIT_MBUF_LABEL: 51496adb909SRobert Watson mpc->mpc_ops->mpo_init_mbuf_label = 51595fab37eSRobert Watson mpe->mpe_function; 51695fab37eSRobert Watson break; 51796adb909SRobert Watson case MAC_INIT_MOUNT_LABEL: 51896adb909SRobert Watson mpc->mpc_ops->mpo_init_mount_label = 51995fab37eSRobert Watson mpe->mpe_function; 52095fab37eSRobert Watson break; 52196adb909SRobert Watson case MAC_INIT_MOUNT_FS_LABEL: 52296adb909SRobert Watson mpc->mpc_ops->mpo_init_mount_fs_label = 52395fab37eSRobert Watson mpe->mpe_function; 52495fab37eSRobert Watson break; 52596adb909SRobert Watson case MAC_INIT_PIPE_LABEL: 52696adb909SRobert Watson mpc->mpc_ops->mpo_init_pipe_label = 52795fab37eSRobert Watson mpe->mpe_function; 52895fab37eSRobert Watson break; 52996adb909SRobert Watson case MAC_INIT_SOCKET_LABEL: 53096adb909SRobert Watson mpc->mpc_ops->mpo_init_socket_label = 53195fab37eSRobert Watson mpe->mpe_function; 53295fab37eSRobert Watson break; 53396adb909SRobert Watson case MAC_INIT_SOCKET_PEER_LABEL: 53496adb909SRobert Watson mpc->mpc_ops->mpo_init_socket_peer_label = 53595fab37eSRobert Watson mpe->mpe_function; 53695fab37eSRobert Watson break; 53796adb909SRobert Watson case MAC_INIT_VNODE_LABEL: 53896adb909SRobert Watson mpc->mpc_ops->mpo_init_vnode_label = 53995fab37eSRobert Watson mpe->mpe_function; 54095fab37eSRobert Watson break; 54196adb909SRobert Watson case MAC_DESTROY_BPFDESC_LABEL: 54296adb909SRobert Watson mpc->mpc_ops->mpo_destroy_bpfdesc_label = 54395fab37eSRobert Watson mpe->mpe_function; 54495fab37eSRobert Watson break; 54596adb909SRobert Watson case MAC_DESTROY_CRED_LABEL: 54696adb909SRobert Watson mpc->mpc_ops->mpo_destroy_cred_label = 54795fab37eSRobert Watson mpe->mpe_function; 54895fab37eSRobert Watson break; 54996adb909SRobert Watson case MAC_DESTROY_DEVFSDIRENT_LABEL: 55096adb909SRobert Watson mpc->mpc_ops->mpo_destroy_devfsdirent_label = 55195fab37eSRobert Watson mpe->mpe_function; 55295fab37eSRobert Watson break; 55396adb909SRobert Watson case MAC_DESTROY_IFNET_LABEL: 55496adb909SRobert Watson mpc->mpc_ops->mpo_destroy_ifnet_label = 55595fab37eSRobert Watson mpe->mpe_function; 55695fab37eSRobert Watson break; 55796adb909SRobert Watson case MAC_DESTROY_IPQ_LABEL: 55896adb909SRobert Watson mpc->mpc_ops->mpo_destroy_ipq_label = 55995fab37eSRobert Watson mpe->mpe_function; 56095fab37eSRobert Watson break; 56196adb909SRobert Watson case MAC_DESTROY_MBUF_LABEL: 56296adb909SRobert Watson mpc->mpc_ops->mpo_destroy_mbuf_label = 56395fab37eSRobert Watson mpe->mpe_function; 56495fab37eSRobert Watson break; 56596adb909SRobert Watson case MAC_DESTROY_MOUNT_LABEL: 56696adb909SRobert Watson mpc->mpc_ops->mpo_destroy_mount_label = 56795fab37eSRobert Watson mpe->mpe_function; 56895fab37eSRobert Watson break; 56996adb909SRobert Watson case MAC_DESTROY_MOUNT_FS_LABEL: 57096adb909SRobert Watson mpc->mpc_ops->mpo_destroy_mount_fs_label = 57195fab37eSRobert Watson mpe->mpe_function; 57295fab37eSRobert Watson break; 57396adb909SRobert Watson case MAC_DESTROY_PIPE_LABEL: 57496adb909SRobert Watson mpc->mpc_ops->mpo_destroy_pipe_label = 57596adb909SRobert Watson mpe->mpe_function; 57696adb909SRobert Watson break; 57796adb909SRobert Watson case MAC_DESTROY_SOCKET_LABEL: 57896adb909SRobert Watson mpc->mpc_ops->mpo_destroy_socket_label = 57996adb909SRobert Watson mpe->mpe_function; 58096adb909SRobert Watson break; 58196adb909SRobert Watson case MAC_DESTROY_SOCKET_PEER_LABEL: 58296adb909SRobert Watson mpc->mpc_ops->mpo_destroy_socket_peer_label = 58396adb909SRobert Watson mpe->mpe_function; 58496adb909SRobert Watson break; 58596adb909SRobert Watson case MAC_DESTROY_VNODE_LABEL: 58696adb909SRobert Watson mpc->mpc_ops->mpo_destroy_vnode_label = 58795fab37eSRobert Watson mpe->mpe_function; 58895fab37eSRobert Watson break; 589f7b951a8SRobert Watson case MAC_COPY_PIPE_LABEL: 590f7b951a8SRobert Watson mpc->mpc_ops->mpo_copy_pipe_label = 59195fab37eSRobert Watson mpe->mpe_function; 59295fab37eSRobert Watson break; 593f7b951a8SRobert Watson case MAC_COPY_VNODE_LABEL: 594f7b951a8SRobert Watson mpc->mpc_ops->mpo_copy_vnode_label = 595f7b951a8SRobert Watson mpe->mpe_function; 596f7b951a8SRobert Watson break; 597f7b951a8SRobert Watson case MAC_EXTERNALIZE_CRED_LABEL: 598f7b951a8SRobert Watson mpc->mpc_ops->mpo_externalize_cred_label = 599f7b951a8SRobert Watson mpe->mpe_function; 600f7b951a8SRobert Watson break; 601f7b951a8SRobert Watson case MAC_EXTERNALIZE_IFNET_LABEL: 602f7b951a8SRobert Watson mpc->mpc_ops->mpo_externalize_ifnet_label = 603f7b951a8SRobert Watson mpe->mpe_function; 604f7b951a8SRobert Watson break; 605f7b951a8SRobert Watson case MAC_EXTERNALIZE_PIPE_LABEL: 606f7b951a8SRobert Watson mpc->mpc_ops->mpo_externalize_pipe_label = 607f7b951a8SRobert Watson mpe->mpe_function; 608f7b951a8SRobert Watson break; 609f7b951a8SRobert Watson case MAC_EXTERNALIZE_SOCKET_LABEL: 610f7b951a8SRobert Watson mpc->mpc_ops->mpo_externalize_socket_label = 611f7b951a8SRobert Watson mpe->mpe_function; 612f7b951a8SRobert Watson break; 613f7b951a8SRobert Watson case MAC_EXTERNALIZE_SOCKET_PEER_LABEL: 614f7b951a8SRobert Watson mpc->mpc_ops->mpo_externalize_socket_peer_label = 615f7b951a8SRobert Watson mpe->mpe_function; 616f7b951a8SRobert Watson break; 617f7b951a8SRobert Watson case MAC_EXTERNALIZE_VNODE_LABEL: 618f7b951a8SRobert Watson mpc->mpc_ops->mpo_externalize_vnode_label = 619f7b951a8SRobert Watson mpe->mpe_function; 620f7b951a8SRobert Watson break; 621f7b951a8SRobert Watson case MAC_EXTERNALIZE_VNODE_OLDMAC: 622f7b951a8SRobert Watson mpc->mpc_ops->mpo_externalize_vnode_oldmac = 623f7b951a8SRobert Watson mpe->mpe_function; 624f7b951a8SRobert Watson break; 625f7b951a8SRobert Watson case MAC_INTERNALIZE_CRED_LABEL: 626f7b951a8SRobert Watson mpc->mpc_ops->mpo_internalize_cred_label = 627f7b951a8SRobert Watson mpe->mpe_function; 628f7b951a8SRobert Watson break; 629f7b951a8SRobert Watson case MAC_INTERNALIZE_IFNET_LABEL: 630f7b951a8SRobert Watson mpc->mpc_ops->mpo_internalize_ifnet_label = 631f7b951a8SRobert Watson mpe->mpe_function; 632f7b951a8SRobert Watson break; 633f7b951a8SRobert Watson case MAC_INTERNALIZE_PIPE_LABEL: 634f7b951a8SRobert Watson mpc->mpc_ops->mpo_internalize_pipe_label = 635f7b951a8SRobert Watson mpe->mpe_function; 636f7b951a8SRobert Watson break; 637f7b951a8SRobert Watson case MAC_INTERNALIZE_SOCKET_LABEL: 638f7b951a8SRobert Watson mpc->mpc_ops->mpo_internalize_socket_label = 639f7b951a8SRobert Watson mpe->mpe_function; 640f7b951a8SRobert Watson break; 641f7b951a8SRobert Watson case MAC_INTERNALIZE_VNODE_LABEL: 642f7b951a8SRobert Watson mpc->mpc_ops->mpo_internalize_vnode_label = 64395fab37eSRobert Watson mpe->mpe_function; 64495fab37eSRobert Watson break; 64595fab37eSRobert Watson case MAC_CREATE_DEVFS_DEVICE: 64695fab37eSRobert Watson mpc->mpc_ops->mpo_create_devfs_device = 64795fab37eSRobert Watson mpe->mpe_function; 64895fab37eSRobert Watson break; 64995fab37eSRobert Watson case MAC_CREATE_DEVFS_DIRECTORY: 65095fab37eSRobert Watson mpc->mpc_ops->mpo_create_devfs_directory = 65195fab37eSRobert Watson mpe->mpe_function; 65295fab37eSRobert Watson break; 65374e62b1bSRobert Watson case MAC_CREATE_DEVFS_SYMLINK: 65474e62b1bSRobert Watson mpc->mpc_ops->mpo_create_devfs_symlink = 65574e62b1bSRobert Watson mpe->mpe_function; 65674e62b1bSRobert Watson break; 65795fab37eSRobert Watson case MAC_CREATE_DEVFS_VNODE: 65895fab37eSRobert Watson mpc->mpc_ops->mpo_create_devfs_vnode = 65995fab37eSRobert Watson mpe->mpe_function; 66095fab37eSRobert Watson break; 66195fab37eSRobert Watson case MAC_STDCREATEVNODE_EA: 66295fab37eSRobert Watson mpc->mpc_ops->mpo_stdcreatevnode_ea = 66395fab37eSRobert Watson mpe->mpe_function; 66495fab37eSRobert Watson break; 66595fab37eSRobert Watson case MAC_CREATE_VNODE: 66695fab37eSRobert Watson mpc->mpc_ops->mpo_create_vnode = 66795fab37eSRobert Watson mpe->mpe_function; 66895fab37eSRobert Watson break; 66995fab37eSRobert Watson case MAC_CREATE_MOUNT: 67095fab37eSRobert Watson mpc->mpc_ops->mpo_create_mount = 67195fab37eSRobert Watson mpe->mpe_function; 67295fab37eSRobert Watson break; 67395fab37eSRobert Watson case MAC_CREATE_ROOT_MOUNT: 67495fab37eSRobert Watson mpc->mpc_ops->mpo_create_root_mount = 67595fab37eSRobert Watson mpe->mpe_function; 67695fab37eSRobert Watson break; 67795fab37eSRobert Watson case MAC_RELABEL_VNODE: 67895fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_vnode = 67995fab37eSRobert Watson mpe->mpe_function; 68095fab37eSRobert Watson break; 68195fab37eSRobert Watson case MAC_UPDATE_DEVFSDIRENT: 68295fab37eSRobert Watson mpc->mpc_ops->mpo_update_devfsdirent = 68395fab37eSRobert Watson mpe->mpe_function; 68495fab37eSRobert Watson break; 68595fab37eSRobert Watson case MAC_UPDATE_PROCFSVNODE: 68695fab37eSRobert Watson mpc->mpc_ops->mpo_update_procfsvnode = 68795fab37eSRobert Watson mpe->mpe_function; 68895fab37eSRobert Watson break; 68995fab37eSRobert Watson case MAC_UPDATE_VNODE_FROM_EXTATTR: 69095fab37eSRobert Watson mpc->mpc_ops->mpo_update_vnode_from_extattr = 69195fab37eSRobert Watson mpe->mpe_function; 69295fab37eSRobert Watson break; 69395fab37eSRobert Watson case MAC_UPDATE_VNODE_FROM_EXTERNALIZED: 69495fab37eSRobert Watson mpc->mpc_ops->mpo_update_vnode_from_externalized = 69595fab37eSRobert Watson mpe->mpe_function; 69695fab37eSRobert Watson break; 69795fab37eSRobert Watson case MAC_UPDATE_VNODE_FROM_MOUNT: 69895fab37eSRobert Watson mpc->mpc_ops->mpo_update_vnode_from_mount = 69995fab37eSRobert Watson mpe->mpe_function; 70095fab37eSRobert Watson break; 70195fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_SOCKET: 70295fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_socket = 70395fab37eSRobert Watson mpe->mpe_function; 70495fab37eSRobert Watson break; 70595fab37eSRobert Watson case MAC_CREATE_PIPE: 70695fab37eSRobert Watson mpc->mpc_ops->mpo_create_pipe = 70795fab37eSRobert Watson mpe->mpe_function; 70895fab37eSRobert Watson break; 70995fab37eSRobert Watson case MAC_CREATE_SOCKET: 71095fab37eSRobert Watson mpc->mpc_ops->mpo_create_socket = 71195fab37eSRobert Watson mpe->mpe_function; 71295fab37eSRobert Watson break; 71395fab37eSRobert Watson case MAC_CREATE_SOCKET_FROM_SOCKET: 71495fab37eSRobert Watson mpc->mpc_ops->mpo_create_socket_from_socket = 71595fab37eSRobert Watson mpe->mpe_function; 71695fab37eSRobert Watson break; 71795fab37eSRobert Watson case MAC_RELABEL_PIPE: 71895fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_pipe = 71995fab37eSRobert Watson mpe->mpe_function; 72095fab37eSRobert Watson break; 72195fab37eSRobert Watson case MAC_RELABEL_SOCKET: 72295fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_socket = 72395fab37eSRobert Watson mpe->mpe_function; 72495fab37eSRobert Watson break; 72595fab37eSRobert Watson case MAC_SET_SOCKET_PEER_FROM_MBUF: 72695fab37eSRobert Watson mpc->mpc_ops->mpo_set_socket_peer_from_mbuf = 72795fab37eSRobert Watson mpe->mpe_function; 72895fab37eSRobert Watson break; 72995fab37eSRobert Watson case MAC_SET_SOCKET_PEER_FROM_SOCKET: 73095fab37eSRobert Watson mpc->mpc_ops->mpo_set_socket_peer_from_socket = 73195fab37eSRobert Watson mpe->mpe_function; 73295fab37eSRobert Watson break; 73395fab37eSRobert Watson case MAC_CREATE_BPFDESC: 73495fab37eSRobert Watson mpc->mpc_ops->mpo_create_bpfdesc = 73595fab37eSRobert Watson mpe->mpe_function; 73695fab37eSRobert Watson break; 73795fab37eSRobert Watson case MAC_CREATE_DATAGRAM_FROM_IPQ: 73895fab37eSRobert Watson mpc->mpc_ops->mpo_create_datagram_from_ipq = 73995fab37eSRobert Watson mpe->mpe_function; 74095fab37eSRobert Watson break; 74195fab37eSRobert Watson case MAC_CREATE_FRAGMENT: 74295fab37eSRobert Watson mpc->mpc_ops->mpo_create_fragment = 74395fab37eSRobert Watson mpe->mpe_function; 74495fab37eSRobert Watson break; 74595fab37eSRobert Watson case MAC_CREATE_IFNET: 74695fab37eSRobert Watson mpc->mpc_ops->mpo_create_ifnet = 74795fab37eSRobert Watson mpe->mpe_function; 74895fab37eSRobert Watson break; 74995fab37eSRobert Watson case MAC_CREATE_IPQ: 75095fab37eSRobert Watson mpc->mpc_ops->mpo_create_ipq = 75195fab37eSRobert Watson mpe->mpe_function; 75295fab37eSRobert Watson break; 75395fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_MBUF: 75495fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_mbuf = 75595fab37eSRobert Watson mpe->mpe_function; 75695fab37eSRobert Watson break; 75795fab37eSRobert Watson case MAC_CREATE_MBUF_LINKLAYER: 75895fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_linklayer = 75995fab37eSRobert Watson mpe->mpe_function; 76095fab37eSRobert Watson break; 76195fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_BPFDESC: 76295fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_bpfdesc = 76395fab37eSRobert Watson mpe->mpe_function; 76495fab37eSRobert Watson break; 76595fab37eSRobert Watson case MAC_CREATE_MBUF_FROM_IFNET: 76695fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_from_ifnet = 76795fab37eSRobert Watson mpe->mpe_function; 76895fab37eSRobert Watson break; 76995fab37eSRobert Watson case MAC_CREATE_MBUF_MULTICAST_ENCAP: 77095fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_multicast_encap = 77195fab37eSRobert Watson mpe->mpe_function; 77295fab37eSRobert Watson break; 77395fab37eSRobert Watson case MAC_CREATE_MBUF_NETLAYER: 77495fab37eSRobert Watson mpc->mpc_ops->mpo_create_mbuf_netlayer = 77595fab37eSRobert Watson mpe->mpe_function; 77695fab37eSRobert Watson break; 77795fab37eSRobert Watson case MAC_FRAGMENT_MATCH: 77895fab37eSRobert Watson mpc->mpc_ops->mpo_fragment_match = 77995fab37eSRobert Watson mpe->mpe_function; 78095fab37eSRobert Watson break; 78195fab37eSRobert Watson case MAC_RELABEL_IFNET: 78295fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_ifnet = 78395fab37eSRobert Watson mpe->mpe_function; 78495fab37eSRobert Watson break; 78595fab37eSRobert Watson case MAC_UPDATE_IPQ: 78695fab37eSRobert Watson mpc->mpc_ops->mpo_update_ipq = 78795fab37eSRobert Watson mpe->mpe_function; 78895fab37eSRobert Watson break; 78995fab37eSRobert Watson case MAC_CREATE_CRED: 79095fab37eSRobert Watson mpc->mpc_ops->mpo_create_cred = 79195fab37eSRobert Watson mpe->mpe_function; 79295fab37eSRobert Watson break; 79395fab37eSRobert Watson case MAC_EXECVE_TRANSITION: 79495fab37eSRobert Watson mpc->mpc_ops->mpo_execve_transition = 79595fab37eSRobert Watson mpe->mpe_function; 79695fab37eSRobert Watson break; 79795fab37eSRobert Watson case MAC_EXECVE_WILL_TRANSITION: 79895fab37eSRobert Watson mpc->mpc_ops->mpo_execve_will_transition = 79995fab37eSRobert Watson mpe->mpe_function; 80095fab37eSRobert Watson break; 80195fab37eSRobert Watson case MAC_CREATE_PROC0: 802226b96fbSRobert Watson mpc->mpc_ops->mpo_create_proc0 = 803226b96fbSRobert Watson mpe->mpe_function; 80495fab37eSRobert Watson break; 80595fab37eSRobert Watson case MAC_CREATE_PROC1: 806226b96fbSRobert Watson mpc->mpc_ops->mpo_create_proc1 = 807226b96fbSRobert Watson mpe->mpe_function; 80895fab37eSRobert Watson break; 80995fab37eSRobert Watson case MAC_RELABEL_CRED: 81095fab37eSRobert Watson mpc->mpc_ops->mpo_relabel_cred = 81195fab37eSRobert Watson mpe->mpe_function; 81295fab37eSRobert Watson break; 81392dbb82aSRobert Watson case MAC_THREAD_USERRET: 81492dbb82aSRobert Watson mpc->mpc_ops->mpo_thread_userret = 81592dbb82aSRobert Watson mpe->mpe_function; 81692dbb82aSRobert Watson break; 81795fab37eSRobert Watson case MAC_CHECK_BPFDESC_RECEIVE: 81895fab37eSRobert Watson mpc->mpc_ops->mpo_check_bpfdesc_receive = 81995fab37eSRobert Watson mpe->mpe_function; 82095fab37eSRobert Watson break; 82195fab37eSRobert Watson case MAC_CHECK_CRED_RELABEL: 82295fab37eSRobert Watson mpc->mpc_ops->mpo_check_cred_relabel = 82395fab37eSRobert Watson mpe->mpe_function; 82495fab37eSRobert Watson break; 82595fab37eSRobert Watson case MAC_CHECK_CRED_VISIBLE: 82695fab37eSRobert Watson mpc->mpc_ops->mpo_check_cred_visible = 82795fab37eSRobert Watson mpe->mpe_function; 82895fab37eSRobert Watson break; 82995fab37eSRobert Watson case MAC_CHECK_IFNET_RELABEL: 83095fab37eSRobert Watson mpc->mpc_ops->mpo_check_ifnet_relabel = 83195fab37eSRobert Watson mpe->mpe_function; 83295fab37eSRobert Watson break; 83395fab37eSRobert Watson case MAC_CHECK_IFNET_TRANSMIT: 83495fab37eSRobert Watson mpc->mpc_ops->mpo_check_ifnet_transmit = 83595fab37eSRobert Watson mpe->mpe_function; 83695fab37eSRobert Watson break; 83795fab37eSRobert Watson case MAC_CHECK_MOUNT_STAT: 83895fab37eSRobert Watson mpc->mpc_ops->mpo_check_mount_stat = 83995fab37eSRobert Watson mpe->mpe_function; 84095fab37eSRobert Watson break; 84195fab37eSRobert Watson case MAC_CHECK_PIPE_IOCTL: 84295fab37eSRobert Watson mpc->mpc_ops->mpo_check_pipe_ioctl = 84395fab37eSRobert Watson mpe->mpe_function; 84495fab37eSRobert Watson break; 845c024c3eeSRobert Watson case MAC_CHECK_PIPE_POLL: 846c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_poll = 847c024c3eeSRobert Watson mpe->mpe_function; 848c024c3eeSRobert Watson break; 849c024c3eeSRobert Watson case MAC_CHECK_PIPE_READ: 850c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_read = 85195fab37eSRobert Watson mpe->mpe_function; 85295fab37eSRobert Watson break; 85395fab37eSRobert Watson case MAC_CHECK_PIPE_RELABEL: 85495fab37eSRobert Watson mpc->mpc_ops->mpo_check_pipe_relabel = 85595fab37eSRobert Watson mpe->mpe_function; 85695fab37eSRobert Watson break; 857c024c3eeSRobert Watson case MAC_CHECK_PIPE_STAT: 858c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_stat = 859c024c3eeSRobert Watson mpe->mpe_function; 860c024c3eeSRobert Watson break; 861c024c3eeSRobert Watson case MAC_CHECK_PIPE_WRITE: 862c024c3eeSRobert Watson mpc->mpc_ops->mpo_check_pipe_write = 863c024c3eeSRobert Watson mpe->mpe_function; 864c024c3eeSRobert Watson break; 86595fab37eSRobert Watson case MAC_CHECK_PROC_DEBUG: 86695fab37eSRobert Watson mpc->mpc_ops->mpo_check_proc_debug = 86795fab37eSRobert Watson mpe->mpe_function; 86895fab37eSRobert Watson break; 86995fab37eSRobert Watson case MAC_CHECK_PROC_SCHED: 87095fab37eSRobert Watson mpc->mpc_ops->mpo_check_proc_sched = 87195fab37eSRobert Watson mpe->mpe_function; 87295fab37eSRobert Watson break; 87395fab37eSRobert Watson case MAC_CHECK_PROC_SIGNAL: 87495fab37eSRobert Watson mpc->mpc_ops->mpo_check_proc_signal = 87595fab37eSRobert Watson mpe->mpe_function; 87695fab37eSRobert Watson break; 87795fab37eSRobert Watson case MAC_CHECK_SOCKET_BIND: 87895fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_bind = 87995fab37eSRobert Watson mpe->mpe_function; 88095fab37eSRobert Watson break; 88195fab37eSRobert Watson case MAC_CHECK_SOCKET_CONNECT: 88295fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_connect = 88395fab37eSRobert Watson mpe->mpe_function; 88495fab37eSRobert Watson break; 885d61198e4SRobert Watson case MAC_CHECK_SOCKET_DELIVER: 886d61198e4SRobert Watson mpc->mpc_ops->mpo_check_socket_deliver = 88795fab37eSRobert Watson mpe->mpe_function; 88895fab37eSRobert Watson break; 889d61198e4SRobert Watson case MAC_CHECK_SOCKET_LISTEN: 890d61198e4SRobert Watson mpc->mpc_ops->mpo_check_socket_listen = 89195fab37eSRobert Watson mpe->mpe_function; 89295fab37eSRobert Watson break; 893b371c939SRobert Watson case MAC_CHECK_SOCKET_RECEIVE: 894b371c939SRobert Watson mpc->mpc_ops->mpo_check_socket_receive = 895b371c939SRobert Watson mpe->mpe_function; 896b371c939SRobert Watson break; 89795fab37eSRobert Watson case MAC_CHECK_SOCKET_RELABEL: 89895fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_relabel = 89995fab37eSRobert Watson mpe->mpe_function; 90095fab37eSRobert Watson break; 901b371c939SRobert Watson case MAC_CHECK_SOCKET_SEND: 902b371c939SRobert Watson mpc->mpc_ops->mpo_check_socket_send = 903b371c939SRobert Watson mpe->mpe_function; 904b371c939SRobert Watson break; 90595fab37eSRobert Watson case MAC_CHECK_SOCKET_VISIBLE: 90695fab37eSRobert Watson mpc->mpc_ops->mpo_check_socket_visible = 90795fab37eSRobert Watson mpe->mpe_function; 90895fab37eSRobert Watson break; 90995fab37eSRobert Watson case MAC_CHECK_VNODE_ACCESS: 91095fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_access = 91195fab37eSRobert Watson mpe->mpe_function; 91295fab37eSRobert Watson break; 91395fab37eSRobert Watson case MAC_CHECK_VNODE_CHDIR: 91495fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_chdir = 91595fab37eSRobert Watson mpe->mpe_function; 91695fab37eSRobert Watson break; 91795fab37eSRobert Watson case MAC_CHECK_VNODE_CHROOT: 91895fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_chroot = 91995fab37eSRobert Watson mpe->mpe_function; 92095fab37eSRobert Watson break; 92195fab37eSRobert Watson case MAC_CHECK_VNODE_CREATE: 92295fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_create = 92395fab37eSRobert Watson mpe->mpe_function; 92495fab37eSRobert Watson break; 92595fab37eSRobert Watson case MAC_CHECK_VNODE_DELETE: 92695fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_delete = 92795fab37eSRobert Watson mpe->mpe_function; 92895fab37eSRobert Watson break; 92995fab37eSRobert Watson case MAC_CHECK_VNODE_DELETEACL: 93095fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_deleteacl = 93195fab37eSRobert Watson mpe->mpe_function; 93295fab37eSRobert Watson break; 93395fab37eSRobert Watson case MAC_CHECK_VNODE_EXEC: 93495fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_exec = 93595fab37eSRobert Watson mpe->mpe_function; 93695fab37eSRobert Watson break; 93795fab37eSRobert Watson case MAC_CHECK_VNODE_GETACL: 93895fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_getacl = 93995fab37eSRobert Watson mpe->mpe_function; 94095fab37eSRobert Watson break; 94195fab37eSRobert Watson case MAC_CHECK_VNODE_GETEXTATTR: 94295fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_getextattr = 94395fab37eSRobert Watson mpe->mpe_function; 94495fab37eSRobert Watson break; 9450a694196SRobert Watson case MAC_CHECK_VNODE_LINK: 9460a694196SRobert Watson mpc->mpc_ops->mpo_check_vnode_link = 9470a694196SRobert Watson mpe->mpe_function; 9480a694196SRobert Watson break; 94995fab37eSRobert Watson case MAC_CHECK_VNODE_LOOKUP: 95095fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_lookup = 95195fab37eSRobert Watson mpe->mpe_function; 95295fab37eSRobert Watson break; 953e183f80eSRobert Watson case MAC_CHECK_VNODE_MMAP: 954e183f80eSRobert Watson mpc->mpc_ops->mpo_check_vnode_mmap = 955e183f80eSRobert Watson mpe->mpe_function; 956e183f80eSRobert Watson break; 957e183f80eSRobert Watson case MAC_CHECK_VNODE_MMAP_DOWNGRADE: 958e183f80eSRobert Watson mpc->mpc_ops->mpo_check_vnode_mmap_downgrade = 959e183f80eSRobert Watson mpe->mpe_function; 960e183f80eSRobert Watson break; 961e183f80eSRobert Watson case MAC_CHECK_VNODE_MPROTECT: 962e183f80eSRobert Watson mpc->mpc_ops->mpo_check_vnode_mprotect = 96395fab37eSRobert Watson mpe->mpe_function; 96495fab37eSRobert Watson break; 96595fab37eSRobert Watson case MAC_CHECK_VNODE_OPEN: 96695fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_open = 96795fab37eSRobert Watson mpe->mpe_function; 96895fab37eSRobert Watson break; 9697f724f8bSRobert Watson case MAC_CHECK_VNODE_POLL: 9707f724f8bSRobert Watson mpc->mpc_ops->mpo_check_vnode_poll = 9717f724f8bSRobert Watson mpe->mpe_function; 9727f724f8bSRobert Watson break; 9737f724f8bSRobert Watson case MAC_CHECK_VNODE_READ: 9747f724f8bSRobert Watson mpc->mpc_ops->mpo_check_vnode_read = 9757f724f8bSRobert Watson mpe->mpe_function; 9767f724f8bSRobert Watson break; 97795fab37eSRobert Watson case MAC_CHECK_VNODE_READDIR: 97895fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_readdir = 97995fab37eSRobert Watson mpe->mpe_function; 98095fab37eSRobert Watson break; 98195fab37eSRobert Watson case MAC_CHECK_VNODE_READLINK: 98295fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_readlink = 98395fab37eSRobert Watson mpe->mpe_function; 98495fab37eSRobert Watson break; 98595fab37eSRobert Watson case MAC_CHECK_VNODE_RELABEL: 98695fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_relabel = 98795fab37eSRobert Watson mpe->mpe_function; 98895fab37eSRobert Watson break; 98995fab37eSRobert Watson case MAC_CHECK_VNODE_RENAME_FROM: 99095fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_rename_from = 99195fab37eSRobert Watson mpe->mpe_function; 99295fab37eSRobert Watson break; 99395fab37eSRobert Watson case MAC_CHECK_VNODE_RENAME_TO: 99495fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_rename_to = 99595fab37eSRobert Watson mpe->mpe_function; 99695fab37eSRobert Watson break; 99795fab37eSRobert Watson case MAC_CHECK_VNODE_REVOKE: 99895fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_revoke = 99995fab37eSRobert Watson mpe->mpe_function; 100095fab37eSRobert Watson break; 100195fab37eSRobert Watson case MAC_CHECK_VNODE_SETACL: 100295fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setacl = 100395fab37eSRobert Watson mpe->mpe_function; 100495fab37eSRobert Watson break; 100595fab37eSRobert Watson case MAC_CHECK_VNODE_SETEXTATTR: 100695fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setextattr = 100795fab37eSRobert Watson mpe->mpe_function; 100895fab37eSRobert Watson break; 100995fab37eSRobert Watson case MAC_CHECK_VNODE_SETFLAGS: 101095fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setflags = 101195fab37eSRobert Watson mpe->mpe_function; 101295fab37eSRobert Watson break; 101395fab37eSRobert Watson case MAC_CHECK_VNODE_SETMODE: 101495fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setmode = 101595fab37eSRobert Watson mpe->mpe_function; 101695fab37eSRobert Watson break; 101795fab37eSRobert Watson case MAC_CHECK_VNODE_SETOWNER: 101895fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setowner = 101995fab37eSRobert Watson mpe->mpe_function; 102095fab37eSRobert Watson break; 102195fab37eSRobert Watson case MAC_CHECK_VNODE_SETUTIMES: 102295fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_setutimes = 102395fab37eSRobert Watson mpe->mpe_function; 102495fab37eSRobert Watson break; 102595fab37eSRobert Watson case MAC_CHECK_VNODE_STAT: 102695fab37eSRobert Watson mpc->mpc_ops->mpo_check_vnode_stat = 102795fab37eSRobert Watson mpe->mpe_function; 102895fab37eSRobert Watson break; 10297f724f8bSRobert Watson case MAC_CHECK_VNODE_WRITE: 10307f724f8bSRobert Watson mpc->mpc_ops->mpo_check_vnode_write = 10317f724f8bSRobert Watson mpe->mpe_function; 10327f724f8bSRobert Watson break; 103395fab37eSRobert Watson /* 103495fab37eSRobert Watson default: 103595fab37eSRobert Watson printf("MAC policy `%s': unknown operation %d\n", 103695fab37eSRobert Watson mpc->mpc_name, mpe->mpe_constant); 103795fab37eSRobert Watson return (EINVAL); 103895fab37eSRobert Watson */ 103995fab37eSRobert Watson } 104095fab37eSRobert Watson } 104195fab37eSRobert Watson MAC_POLICY_LIST_LOCK(); 104295fab37eSRobert Watson if (mac_policy_list_busy > 0) { 104395fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 104495fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 104595fab37eSRobert Watson mpc->mpc_ops = NULL; 104695fab37eSRobert Watson return (EBUSY); 104795fab37eSRobert Watson } 104895fab37eSRobert Watson LIST_FOREACH(tmpc, &mac_policy_list, mpc_list) { 104995fab37eSRobert Watson if (strcmp(tmpc->mpc_name, mpc->mpc_name) == 0) { 105095fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 105195fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 105295fab37eSRobert Watson mpc->mpc_ops = NULL; 105395fab37eSRobert Watson return (EEXIST); 105495fab37eSRobert Watson } 105595fab37eSRobert Watson } 105695fab37eSRobert Watson if (mpc->mpc_field_off != NULL) { 105795fab37eSRobert Watson slot = ffs(mac_policy_offsets_free); 105895fab37eSRobert Watson if (slot == 0) { 105995fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 106095fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 106195fab37eSRobert Watson mpc->mpc_ops = NULL; 106295fab37eSRobert Watson return (ENOMEM); 106395fab37eSRobert Watson } 106495fab37eSRobert Watson slot--; 106595fab37eSRobert Watson mac_policy_offsets_free &= ~(1 << slot); 106695fab37eSRobert Watson *mpc->mpc_field_off = slot; 106795fab37eSRobert Watson } 106895fab37eSRobert Watson mpc->mpc_runtime_flags |= MPC_RUNTIME_FLAG_REGISTERED; 106995fab37eSRobert Watson LIST_INSERT_HEAD(&mac_policy_list, mpc, mpc_list); 107095fab37eSRobert Watson 107195fab37eSRobert Watson /* Per-policy initialization. */ 107295fab37eSRobert Watson if (mpc->mpc_ops->mpo_init != NULL) 107395fab37eSRobert Watson (*(mpc->mpc_ops->mpo_init))(mpc); 107495fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 107595fab37eSRobert Watson 107695fab37eSRobert Watson printf("Security policy loaded: %s (%s)\n", mpc->mpc_fullname, 107795fab37eSRobert Watson mpc->mpc_name); 107895fab37eSRobert Watson 107995fab37eSRobert Watson return (0); 108095fab37eSRobert Watson } 108195fab37eSRobert Watson 108295fab37eSRobert Watson static int 108395fab37eSRobert Watson mac_policy_unregister(struct mac_policy_conf *mpc) 108495fab37eSRobert Watson { 108595fab37eSRobert Watson 1086ea599aa0SRobert Watson /* 1087ea599aa0SRobert Watson * If we fail the load, we may get a request to unload. Check 1088ea599aa0SRobert Watson * to see if we did the run-time registration, and if not, 1089ea599aa0SRobert Watson * silently succeed. 1090ea599aa0SRobert Watson */ 1091ea599aa0SRobert Watson MAC_POLICY_LIST_LOCK(); 1092ea599aa0SRobert Watson if ((mpc->mpc_runtime_flags & MPC_RUNTIME_FLAG_REGISTERED) == 0) { 1093ea599aa0SRobert Watson MAC_POLICY_LIST_UNLOCK(); 1094ea599aa0SRobert Watson return (0); 1095ea599aa0SRobert Watson } 109695fab37eSRobert Watson #if 0 109795fab37eSRobert Watson /* 109895fab37eSRobert Watson * Don't allow unloading modules with private data. 109995fab37eSRobert Watson */ 1100ea599aa0SRobert Watson if (mpc->mpc_field_off != NULL) { 1101ea599aa0SRobert Watson MAC_POLICY_LIST_UNLOCK(); 110295fab37eSRobert Watson return (EBUSY); 1103ea599aa0SRobert Watson } 110495fab37eSRobert Watson #endif 1105ea599aa0SRobert Watson /* 1106ea599aa0SRobert Watson * Only allow the unload to proceed if the module is unloadable 1107ea599aa0SRobert Watson * by its own definition. 1108ea599aa0SRobert Watson */ 1109ea599aa0SRobert Watson if ((mpc->mpc_loadtime_flags & MPC_LOADTIME_FLAG_UNLOADOK) == 0) { 1110ea599aa0SRobert Watson MAC_POLICY_LIST_UNLOCK(); 111195fab37eSRobert Watson return (EBUSY); 1112ea599aa0SRobert Watson } 1113ea599aa0SRobert Watson /* 1114ea599aa0SRobert Watson * Right now, we EBUSY if the list is in use. In the future, 1115ea599aa0SRobert Watson * for reliability reasons, we might want to sleep and wakeup 1116ea599aa0SRobert Watson * later to try again. 1117ea599aa0SRobert Watson */ 111895fab37eSRobert Watson if (mac_policy_list_busy > 0) { 111995fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 112095fab37eSRobert Watson return (EBUSY); 112195fab37eSRobert Watson } 112295fab37eSRobert Watson if (mpc->mpc_ops->mpo_destroy != NULL) 112395fab37eSRobert Watson (*(mpc->mpc_ops->mpo_destroy))(mpc); 112495fab37eSRobert Watson 112595fab37eSRobert Watson LIST_REMOVE(mpc, mpc_list); 112695fab37eSRobert Watson MAC_POLICY_LIST_UNLOCK(); 112795fab37eSRobert Watson 112895fab37eSRobert Watson FREE(mpc->mpc_ops, M_MACOPVEC); 112995fab37eSRobert Watson mpc->mpc_ops = NULL; 11309aeffb2bSRobert Watson mpc->mpc_runtime_flags &= ~MPC_RUNTIME_FLAG_REGISTERED; 113195fab37eSRobert Watson 113295fab37eSRobert Watson printf("Security policy unload: %s (%s)\n", mpc->mpc_fullname, 113395fab37eSRobert Watson mpc->mpc_name); 113495fab37eSRobert Watson 113595fab37eSRobert Watson return (0); 113695fab37eSRobert Watson } 113795fab37eSRobert Watson 113895fab37eSRobert Watson /* 113995fab37eSRobert Watson * Define an error value precedence, and given two arguments, selects the 114095fab37eSRobert Watson * value with the higher precedence. 114195fab37eSRobert Watson */ 114295fab37eSRobert Watson static int 114395fab37eSRobert Watson error_select(int error1, int error2) 114495fab37eSRobert Watson { 114595fab37eSRobert Watson 114695fab37eSRobert Watson /* Certain decision-making errors take top priority. */ 114795fab37eSRobert Watson if (error1 == EDEADLK || error2 == EDEADLK) 114895fab37eSRobert Watson return (EDEADLK); 114995fab37eSRobert Watson 115095fab37eSRobert Watson /* Invalid arguments should be reported where possible. */ 115195fab37eSRobert Watson if (error1 == EINVAL || error2 == EINVAL) 115295fab37eSRobert Watson return (EINVAL); 115395fab37eSRobert Watson 115495fab37eSRobert Watson /* Precedence goes to "visibility", with both process and file. */ 115595fab37eSRobert Watson if (error1 == ESRCH || error2 == ESRCH) 115695fab37eSRobert Watson return (ESRCH); 115795fab37eSRobert Watson 115895fab37eSRobert Watson if (error1 == ENOENT || error2 == ENOENT) 115995fab37eSRobert Watson return (ENOENT); 116095fab37eSRobert Watson 116195fab37eSRobert Watson /* Precedence goes to DAC/MAC protections. */ 116295fab37eSRobert Watson if (error1 == EACCES || error2 == EACCES) 116395fab37eSRobert Watson return (EACCES); 116495fab37eSRobert Watson 116595fab37eSRobert Watson /* Precedence goes to privilege. */ 116695fab37eSRobert Watson if (error1 == EPERM || error2 == EPERM) 116795fab37eSRobert Watson return (EPERM); 116895fab37eSRobert Watson 116995fab37eSRobert Watson /* Precedence goes to error over success; otherwise, arbitrary. */ 117095fab37eSRobert Watson if (error1 != 0) 117195fab37eSRobert Watson return (error1); 117295fab37eSRobert Watson return (error2); 117395fab37eSRobert Watson } 117495fab37eSRobert Watson 117508bcdc58SRobert Watson static void 117608bcdc58SRobert Watson mac_init_label(struct label *label) 117708bcdc58SRobert Watson { 117808bcdc58SRobert Watson 117908bcdc58SRobert Watson bzero(label, sizeof(*label)); 118008bcdc58SRobert Watson label->l_flags = MAC_FLAG_INITIALIZED; 118108bcdc58SRobert Watson } 118208bcdc58SRobert Watson 118308bcdc58SRobert Watson static void 118408bcdc58SRobert Watson mac_destroy_label(struct label *label) 118508bcdc58SRobert Watson { 118608bcdc58SRobert Watson 118708bcdc58SRobert Watson KASSERT(label->l_flags & MAC_FLAG_INITIALIZED, 118808bcdc58SRobert Watson ("destroying uninitialized label")); 118908bcdc58SRobert Watson 119008bcdc58SRobert Watson bzero(label, sizeof(*label)); 119108bcdc58SRobert Watson /* implicit: label->l_flags &= ~MAC_FLAG_INITIALIZED; */ 119208bcdc58SRobert Watson } 119308bcdc58SRobert Watson 119408bcdc58SRobert Watson void 119587807196SRobert Watson mac_init_bpfdesc(struct bpf_d *bpf_d) 119608bcdc58SRobert Watson { 119708bcdc58SRobert Watson 119887807196SRobert Watson mac_init_label(&bpf_d->bd_label); 119987807196SRobert Watson MAC_PERFORM(init_bpfdesc_label, &bpf_d->bd_label); 120008bcdc58SRobert Watson #ifdef MAC_DEBUG 120187807196SRobert Watson atomic_add_int(&nmacbpfdescs, 1); 120208bcdc58SRobert Watson #endif 120308bcdc58SRobert Watson } 120408bcdc58SRobert Watson 1205f7b951a8SRobert Watson static void 1206f7b951a8SRobert Watson mac_init_cred_label(struct label *label) 120708bcdc58SRobert Watson { 120808bcdc58SRobert Watson 1209f7b951a8SRobert Watson mac_init_label(label); 1210f7b951a8SRobert Watson MAC_PERFORM(init_cred_label, label); 121108bcdc58SRobert Watson #ifdef MAC_DEBUG 121208bcdc58SRobert Watson atomic_add_int(&nmaccreds, 1); 121308bcdc58SRobert Watson #endif 121408bcdc58SRobert Watson } 121508bcdc58SRobert Watson 121608bcdc58SRobert Watson void 1217f7b951a8SRobert Watson mac_init_cred(struct ucred *cred) 1218f7b951a8SRobert Watson { 1219f7b951a8SRobert Watson 1220f7b951a8SRobert Watson mac_init_cred_label(&cred->cr_label); 1221f7b951a8SRobert Watson } 1222f7b951a8SRobert Watson 1223f7b951a8SRobert Watson void 122487807196SRobert Watson mac_init_devfsdirent(struct devfs_dirent *de) 122508bcdc58SRobert Watson { 122608bcdc58SRobert Watson 122787807196SRobert Watson mac_init_label(&de->de_label); 122887807196SRobert Watson MAC_PERFORM(init_devfsdirent_label, &de->de_label); 122908bcdc58SRobert Watson #ifdef MAC_DEBUG 123087807196SRobert Watson atomic_add_int(&nmacdevfsdirents, 1); 123108bcdc58SRobert Watson #endif 123208bcdc58SRobert Watson } 123308bcdc58SRobert Watson 1234f7b951a8SRobert Watson static void 1235f7b951a8SRobert Watson mac_init_ifnet_label(struct label *label) 1236f7b951a8SRobert Watson { 1237f7b951a8SRobert Watson 1238f7b951a8SRobert Watson mac_init_label(label); 1239f7b951a8SRobert Watson MAC_PERFORM(init_ifnet_label, label); 1240f7b951a8SRobert Watson #ifdef MAC_DEBUG 1241f7b951a8SRobert Watson atomic_add_int(&nmacifnets, 1); 1242f7b951a8SRobert Watson #endif 1243f7b951a8SRobert Watson } 1244f7b951a8SRobert Watson 124508bcdc58SRobert Watson void 124608bcdc58SRobert Watson mac_init_ifnet(struct ifnet *ifp) 124708bcdc58SRobert Watson { 124808bcdc58SRobert Watson 1249f7b951a8SRobert Watson mac_init_ifnet_label(&ifp->if_label); 125008bcdc58SRobert Watson } 125108bcdc58SRobert Watson 125208bcdc58SRobert Watson void 125308bcdc58SRobert Watson mac_init_ipq(struct ipq *ipq) 125408bcdc58SRobert Watson { 125508bcdc58SRobert Watson 125608bcdc58SRobert Watson mac_init_label(&ipq->ipq_label); 125708bcdc58SRobert Watson MAC_PERFORM(init_ipq_label, &ipq->ipq_label); 125808bcdc58SRobert Watson #ifdef MAC_DEBUG 125908bcdc58SRobert Watson atomic_add_int(&nmacipqs, 1); 126008bcdc58SRobert Watson #endif 126108bcdc58SRobert Watson } 126208bcdc58SRobert Watson 126387807196SRobert Watson int 126487807196SRobert Watson mac_init_mbuf(struct mbuf *m, int flag) 126508bcdc58SRobert Watson { 126656c15412SRobert Watson int error; 126756c15412SRobert Watson 126887807196SRobert Watson KASSERT(m->m_flags & M_PKTHDR, ("mac_init_mbuf on non-header mbuf")); 126908bcdc58SRobert Watson 127087807196SRobert Watson mac_init_label(&m->m_pkthdr.label); 127187807196SRobert Watson 127256c15412SRobert Watson MAC_CHECK(init_mbuf_label, &m->m_pkthdr.label, flag); 127356c15412SRobert Watson if (error) { 127456c15412SRobert Watson MAC_PERFORM(destroy_mbuf_label, &m->m_pkthdr.label); 127556c15412SRobert Watson mac_destroy_label(&m->m_pkthdr.label); 127656c15412SRobert Watson } 127756c15412SRobert Watson 127808bcdc58SRobert Watson #ifdef MAC_DEBUG 127956c15412SRobert Watson if (error == 0) 128087807196SRobert Watson atomic_add_int(&nmacmbufs, 1); 128108bcdc58SRobert Watson #endif 128256c15412SRobert Watson return (error); 128308bcdc58SRobert Watson } 128408bcdc58SRobert Watson 128508bcdc58SRobert Watson void 128687807196SRobert Watson mac_init_mount(struct mount *mp) 128708bcdc58SRobert Watson { 128808bcdc58SRobert Watson 128987807196SRobert Watson mac_init_label(&mp->mnt_mntlabel); 129087807196SRobert Watson mac_init_label(&mp->mnt_fslabel); 129187807196SRobert Watson MAC_PERFORM(init_mount_label, &mp->mnt_mntlabel); 129287807196SRobert Watson MAC_PERFORM(init_mount_fs_label, &mp->mnt_fslabel); 129308bcdc58SRobert Watson #ifdef MAC_DEBUG 129487807196SRobert Watson atomic_add_int(&nmacmounts, 1); 129508bcdc58SRobert Watson #endif 129608bcdc58SRobert Watson } 129708bcdc58SRobert Watson 1298f7b951a8SRobert Watson static void 1299f7b951a8SRobert Watson mac_init_pipe_label(struct label *label) 1300f7b951a8SRobert Watson { 1301f7b951a8SRobert Watson 1302f7b951a8SRobert Watson mac_init_label(label); 1303f7b951a8SRobert Watson MAC_PERFORM(init_pipe_label, label); 1304f7b951a8SRobert Watson #ifdef MAC_DEBUG 1305f7b951a8SRobert Watson atomic_add_int(&nmacpipes, 1); 1306f7b951a8SRobert Watson #endif 1307f7b951a8SRobert Watson } 1308f7b951a8SRobert Watson 130908bcdc58SRobert Watson void 131008bcdc58SRobert Watson mac_init_pipe(struct pipe *pipe) 131108bcdc58SRobert Watson { 131208bcdc58SRobert Watson struct label *label; 131308bcdc58SRobert Watson 131408bcdc58SRobert Watson label = malloc(sizeof(struct label), M_MACPIPELABEL, M_ZERO|M_WAITOK); 131508bcdc58SRobert Watson pipe->pipe_label = label; 131608bcdc58SRobert Watson pipe->pipe_peer->pipe_label = label; 1317f7b951a8SRobert Watson mac_init_pipe_label(label); 131808bcdc58SRobert Watson } 131908bcdc58SRobert Watson 132083985c26SRobert Watson static int 132183985c26SRobert Watson mac_init_socket_label(struct label *label, int flag) 132208bcdc58SRobert Watson { 132383985c26SRobert Watson int error; 132408bcdc58SRobert Watson 132583985c26SRobert Watson mac_init_label(label); 132683985c26SRobert Watson 132783985c26SRobert Watson MAC_CHECK(init_socket_label, label, flag); 132883985c26SRobert Watson if (error) { 132983985c26SRobert Watson MAC_PERFORM(destroy_socket_label, label); 133083985c26SRobert Watson mac_destroy_label(label); 133183985c26SRobert Watson } 133283985c26SRobert Watson 133308bcdc58SRobert Watson #ifdef MAC_DEBUG 133483985c26SRobert Watson if (error == 0) 133587807196SRobert Watson atomic_add_int(&nmacsockets, 1); 133687807196SRobert Watson #endif 133783985c26SRobert Watson 133883985c26SRobert Watson return (error); 133983985c26SRobert Watson } 134083985c26SRobert Watson 134183985c26SRobert Watson static int 134283985c26SRobert Watson mac_init_socket_peer_label(struct label *label, int flag) 134383985c26SRobert Watson { 134483985c26SRobert Watson int error; 134583985c26SRobert Watson 134683985c26SRobert Watson mac_init_label(label); 134783985c26SRobert Watson 134883985c26SRobert Watson MAC_CHECK(init_socket_peer_label, label, flag); 134983985c26SRobert Watson if (error) { 135083985c26SRobert Watson MAC_PERFORM(destroy_socket_label, label); 135183985c26SRobert Watson mac_destroy_label(label); 135283985c26SRobert Watson } 135383985c26SRobert Watson 135483985c26SRobert Watson return (error); 135583985c26SRobert Watson } 135683985c26SRobert Watson 135783985c26SRobert Watson int 135883985c26SRobert Watson mac_init_socket(struct socket *socket, int flag) 135983985c26SRobert Watson { 136083985c26SRobert Watson int error; 136183985c26SRobert Watson 136283985c26SRobert Watson error = mac_init_socket_label(&socket->so_label, flag); 136383985c26SRobert Watson if (error) 136483985c26SRobert Watson return (error); 136583985c26SRobert Watson 136683985c26SRobert Watson error = mac_init_socket_peer_label(&socket->so_peerlabel, flag); 136783985c26SRobert Watson if (error) 136883985c26SRobert Watson mac_destroy_socket_label(&socket->so_label); 136983985c26SRobert Watson 137083985c26SRobert Watson return (error); 137187807196SRobert Watson } 137287807196SRobert Watson 137387807196SRobert Watson static void 1374f7b951a8SRobert Watson mac_init_vnode_label(struct label *label) 137587807196SRobert Watson { 137687807196SRobert Watson 137787807196SRobert Watson mac_init_label(label); 1378f7b951a8SRobert Watson MAC_PERFORM(init_vnode_label, label); 137987807196SRobert Watson #ifdef MAC_DEBUG 1380f7b951a8SRobert Watson atomic_add_int(&nmacvnodes, 1); 138108bcdc58SRobert Watson #endif 138208bcdc58SRobert Watson } 138308bcdc58SRobert Watson 138408bcdc58SRobert Watson void 138587807196SRobert Watson mac_init_vnode(struct vnode *vp) 138608bcdc58SRobert Watson { 138708bcdc58SRobert Watson 1388f7b951a8SRobert Watson mac_init_vnode_label(&vp->v_label); 138908bcdc58SRobert Watson } 139008bcdc58SRobert Watson 139108bcdc58SRobert Watson void 139208bcdc58SRobert Watson mac_destroy_bpfdesc(struct bpf_d *bpf_d) 139308bcdc58SRobert Watson { 139408bcdc58SRobert Watson 139508bcdc58SRobert Watson MAC_PERFORM(destroy_bpfdesc_label, &bpf_d->bd_label); 139608bcdc58SRobert Watson mac_destroy_label(&bpf_d->bd_label); 139708bcdc58SRobert Watson #ifdef MAC_DEBUG 139808bcdc58SRobert Watson atomic_subtract_int(&nmacbpfdescs, 1); 139908bcdc58SRobert Watson #endif 140008bcdc58SRobert Watson } 140108bcdc58SRobert Watson 1402f7b951a8SRobert Watson static void 1403f7b951a8SRobert Watson mac_destroy_cred_label(struct label *label) 140408bcdc58SRobert Watson { 140508bcdc58SRobert Watson 1406f7b951a8SRobert Watson MAC_PERFORM(destroy_cred_label, label); 1407f7b951a8SRobert Watson mac_destroy_label(label); 140808bcdc58SRobert Watson #ifdef MAC_DEBUG 140987807196SRobert Watson atomic_subtract_int(&nmaccreds, 1); 141087807196SRobert Watson #endif 141187807196SRobert Watson } 141287807196SRobert Watson 141387807196SRobert Watson void 1414f7b951a8SRobert Watson mac_destroy_cred(struct ucred *cred) 1415f7b951a8SRobert Watson { 1416f7b951a8SRobert Watson 1417f7b951a8SRobert Watson mac_destroy_cred_label(&cred->cr_label); 1418f7b951a8SRobert Watson } 1419f7b951a8SRobert Watson 1420f7b951a8SRobert Watson void 142187807196SRobert Watson mac_destroy_devfsdirent(struct devfs_dirent *de) 142287807196SRobert Watson { 142387807196SRobert Watson 142487807196SRobert Watson MAC_PERFORM(destroy_devfsdirent_label, &de->de_label); 142587807196SRobert Watson mac_destroy_label(&de->de_label); 142687807196SRobert Watson #ifdef MAC_DEBUG 142787807196SRobert Watson atomic_subtract_int(&nmacdevfsdirents, 1); 142887807196SRobert Watson #endif 142987807196SRobert Watson } 143087807196SRobert Watson 1431f7b951a8SRobert Watson static void 1432f7b951a8SRobert Watson mac_destroy_ifnet_label(struct label *label) 1433f7b951a8SRobert Watson { 1434f7b951a8SRobert Watson 1435f7b951a8SRobert Watson MAC_PERFORM(destroy_ifnet_label, label); 1436f7b951a8SRobert Watson mac_destroy_label(label); 1437f7b951a8SRobert Watson #ifdef MAC_DEBUG 1438f7b951a8SRobert Watson atomic_subtract_int(&nmacifnets, 1); 1439f7b951a8SRobert Watson #endif 1440f7b951a8SRobert Watson } 1441f7b951a8SRobert Watson 144287807196SRobert Watson void 144387807196SRobert Watson mac_destroy_ifnet(struct ifnet *ifp) 144487807196SRobert Watson { 144587807196SRobert Watson 1446f7b951a8SRobert Watson mac_destroy_ifnet_label(&ifp->if_label); 144787807196SRobert Watson } 144887807196SRobert Watson 144987807196SRobert Watson void 145087807196SRobert Watson mac_destroy_ipq(struct ipq *ipq) 145187807196SRobert Watson { 145287807196SRobert Watson 145387807196SRobert Watson MAC_PERFORM(destroy_ipq_label, &ipq->ipq_label); 145487807196SRobert Watson mac_destroy_label(&ipq->ipq_label); 145587807196SRobert Watson #ifdef MAC_DEBUG 145687807196SRobert Watson atomic_subtract_int(&nmacipqs, 1); 145787807196SRobert Watson #endif 145887807196SRobert Watson } 145987807196SRobert Watson 146087807196SRobert Watson void 146187807196SRobert Watson mac_destroy_mbuf(struct mbuf *m) 146287807196SRobert Watson { 146387807196SRobert Watson 146487807196SRobert Watson MAC_PERFORM(destroy_mbuf_label, &m->m_pkthdr.label); 146587807196SRobert Watson mac_destroy_label(&m->m_pkthdr.label); 146687807196SRobert Watson #ifdef MAC_DEBUG 146787807196SRobert Watson atomic_subtract_int(&nmacmbufs, 1); 146808bcdc58SRobert Watson #endif 146908bcdc58SRobert Watson } 147008bcdc58SRobert Watson 147108bcdc58SRobert Watson void 147208bcdc58SRobert Watson mac_destroy_mount(struct mount *mp) 147308bcdc58SRobert Watson { 147408bcdc58SRobert Watson 147508bcdc58SRobert Watson MAC_PERFORM(destroy_mount_label, &mp->mnt_mntlabel); 147608bcdc58SRobert Watson MAC_PERFORM(destroy_mount_fs_label, &mp->mnt_fslabel); 147708bcdc58SRobert Watson mac_destroy_label(&mp->mnt_fslabel); 147808bcdc58SRobert Watson mac_destroy_label(&mp->mnt_mntlabel); 147908bcdc58SRobert Watson #ifdef MAC_DEBUG 148008bcdc58SRobert Watson atomic_subtract_int(&nmacmounts, 1); 148108bcdc58SRobert Watson #endif 148208bcdc58SRobert Watson } 148308bcdc58SRobert Watson 1484f7b951a8SRobert Watson static void 1485f7b951a8SRobert Watson mac_destroy_pipe_label(struct label *label) 1486f7b951a8SRobert Watson { 1487f7b951a8SRobert Watson 1488f7b951a8SRobert Watson MAC_PERFORM(destroy_pipe_label, label); 1489f7b951a8SRobert Watson mac_destroy_label(label); 1490f7b951a8SRobert Watson #ifdef MAC_DEBUG 1491f7b951a8SRobert Watson atomic_subtract_int(&nmacpipes, 1); 1492f7b951a8SRobert Watson #endif 1493f7b951a8SRobert Watson } 1494f7b951a8SRobert Watson 149587807196SRobert Watson void 149687807196SRobert Watson mac_destroy_pipe(struct pipe *pipe) 149708bcdc58SRobert Watson { 149808bcdc58SRobert Watson 1499f7b951a8SRobert Watson mac_destroy_pipe_label(pipe->pipe_label); 150087807196SRobert Watson free(pipe->pipe_label, M_MACPIPELABEL); 150187807196SRobert Watson } 150287807196SRobert Watson 150383985c26SRobert Watson static void 150483985c26SRobert Watson mac_destroy_socket_label(struct label *label) 150583985c26SRobert Watson { 150683985c26SRobert Watson 150783985c26SRobert Watson MAC_PERFORM(destroy_socket_label, label); 150883985c26SRobert Watson mac_destroy_label(label); 150983985c26SRobert Watson #ifdef MAC_DEBUG 151083985c26SRobert Watson atomic_subtract_int(&nmacsockets, 1); 151183985c26SRobert Watson #endif 151283985c26SRobert Watson } 151383985c26SRobert Watson 151483985c26SRobert Watson static void 151583985c26SRobert Watson mac_destroy_socket_peer_label(struct label *label) 151683985c26SRobert Watson { 151783985c26SRobert Watson 151883985c26SRobert Watson MAC_PERFORM(destroy_socket_peer_label, label); 151983985c26SRobert Watson mac_destroy_label(label); 152083985c26SRobert Watson } 152183985c26SRobert Watson 152287807196SRobert Watson void 152387807196SRobert Watson mac_destroy_socket(struct socket *socket) 152487807196SRobert Watson { 152587807196SRobert Watson 152683985c26SRobert Watson mac_destroy_socket_label(&socket->so_label); 152783985c26SRobert Watson mac_destroy_socket_peer_label(&socket->so_peerlabel); 152808bcdc58SRobert Watson } 152908bcdc58SRobert Watson 153008bcdc58SRobert Watson static void 1531f7b951a8SRobert Watson mac_destroy_vnode_label(struct label *label) 153208bcdc58SRobert Watson { 153308bcdc58SRobert Watson 1534f7b951a8SRobert Watson MAC_PERFORM(destroy_vnode_label, label); 153508bcdc58SRobert Watson mac_destroy_label(label); 153608bcdc58SRobert Watson #ifdef MAC_DEBUG 1537f7b951a8SRobert Watson atomic_subtract_int(&nmacvnodes, 1); 153808bcdc58SRobert Watson #endif 153908bcdc58SRobert Watson } 154008bcdc58SRobert Watson 154108bcdc58SRobert Watson void 154208bcdc58SRobert Watson mac_destroy_vnode(struct vnode *vp) 154308bcdc58SRobert Watson { 154408bcdc58SRobert Watson 1545f7b951a8SRobert Watson mac_destroy_vnode_label(&vp->v_label); 1546f7b951a8SRobert Watson } 1547f7b951a8SRobert Watson 1548f7b951a8SRobert Watson static void 1549f7b951a8SRobert Watson mac_copy_pipe_label(struct label *src, struct label *dest) 1550f7b951a8SRobert Watson { 1551f7b951a8SRobert Watson 1552f7b951a8SRobert Watson MAC_PERFORM(copy_pipe_label, src, dest); 1553f7b951a8SRobert Watson } 1554f7b951a8SRobert Watson 1555f7b951a8SRobert Watson static void 1556f7b951a8SRobert Watson mac_copy_vnode_label(struct label *src, struct label *dest) 1557f7b951a8SRobert Watson { 1558f7b951a8SRobert Watson 1559f7b951a8SRobert Watson MAC_PERFORM(copy_vnode_label, src, dest); 156008bcdc58SRobert Watson } 156108bcdc58SRobert Watson 156269bbb5b1SRobert Watson static int 1563f7b951a8SRobert Watson mac_check_structmac_consistent(struct mac *mac) 1564f7b951a8SRobert Watson { 1565f7b951a8SRobert Watson 1566f7b951a8SRobert Watson if (mac->m_buflen > MAC_MAX_LABEL_BUF_LEN) 1567f7b951a8SRobert Watson return (EINVAL); 1568f7b951a8SRobert Watson 1569f7b951a8SRobert Watson return (0); 1570f7b951a8SRobert Watson } 1571f7b951a8SRobert Watson 1572f7b951a8SRobert Watson static int 1573f7b951a8SRobert Watson mac_externalize_cred_label(struct label *label, char *elements, 1574f7b951a8SRobert Watson char *outbuf, size_t outbuflen, int flags) 157569bbb5b1SRobert Watson { 157669bbb5b1SRobert Watson int error; 157769bbb5b1SRobert Watson 1578f7b951a8SRobert Watson MAC_EXTERNALIZE(cred_label, label, elements, outbuf, outbuflen); 157969bbb5b1SRobert Watson 158069bbb5b1SRobert Watson return (error); 158169bbb5b1SRobert Watson } 158269bbb5b1SRobert Watson 158369bbb5b1SRobert Watson static int 1584f7b951a8SRobert Watson mac_externalize_ifnet_label(struct label *label, char *elements, 1585f7b951a8SRobert Watson char *outbuf, size_t outbuflen, int flags) 158669bbb5b1SRobert Watson { 158769bbb5b1SRobert Watson int error; 158869bbb5b1SRobert Watson 1589f7b951a8SRobert Watson MAC_EXTERNALIZE(ifnet_label, label, elements, outbuf, outbuflen); 1590f7b951a8SRobert Watson 1591f7b951a8SRobert Watson return (error); 1592f7b951a8SRobert Watson } 1593f7b951a8SRobert Watson 1594f7b951a8SRobert Watson static int 1595f7b951a8SRobert Watson mac_externalize_pipe_label(struct label *label, char *elements, 1596f7b951a8SRobert Watson char *outbuf, size_t outbuflen, int flags) 1597f7b951a8SRobert Watson { 1598f7b951a8SRobert Watson int error; 1599f7b951a8SRobert Watson 1600f7b951a8SRobert Watson MAC_EXTERNALIZE(pipe_label, label, elements, outbuf, outbuflen); 1601f7b951a8SRobert Watson 1602f7b951a8SRobert Watson return (error); 1603f7b951a8SRobert Watson } 1604f7b951a8SRobert Watson 1605f7b951a8SRobert Watson static int 1606f7b951a8SRobert Watson mac_externalize_socket_label(struct label *label, char *elements, 1607f7b951a8SRobert Watson char *outbuf, size_t outbuflen, int flags) 1608f7b951a8SRobert Watson { 1609f7b951a8SRobert Watson int error; 1610f7b951a8SRobert Watson 1611f7b951a8SRobert Watson MAC_EXTERNALIZE(socket_label, label, elements, outbuf, outbuflen); 1612f7b951a8SRobert Watson 1613f7b951a8SRobert Watson return (error); 1614f7b951a8SRobert Watson } 1615f7b951a8SRobert Watson 1616f7b951a8SRobert Watson static int 1617f7b951a8SRobert Watson mac_externalize_socket_peer_label(struct label *label, char *elements, 1618f7b951a8SRobert Watson char *outbuf, size_t outbuflen, int flags) 1619f7b951a8SRobert Watson { 1620f7b951a8SRobert Watson int error; 1621f7b951a8SRobert Watson 1622f7b951a8SRobert Watson MAC_EXTERNALIZE(socket_peer_label, label, elements, outbuf, outbuflen); 1623f7b951a8SRobert Watson 1624f7b951a8SRobert Watson return (error); 1625f7b951a8SRobert Watson } 1626f7b951a8SRobert Watson 1627f7b951a8SRobert Watson static int 1628f7b951a8SRobert Watson mac_externalize_vnode_label(struct label *label, char *elements, 1629f7b951a8SRobert Watson char *outbuf, size_t outbuflen, int flags) 1630f7b951a8SRobert Watson { 1631f7b951a8SRobert Watson int error; 1632f7b951a8SRobert Watson 1633f7b951a8SRobert Watson MAC_EXTERNALIZE(vnode_label, label, elements, outbuf, outbuflen); 1634f7b951a8SRobert Watson 1635f7b951a8SRobert Watson return (error); 1636f7b951a8SRobert Watson } 1637f7b951a8SRobert Watson 1638f7b951a8SRobert Watson static int 1639f7b951a8SRobert Watson mac_externalize_vnode_oldmac(struct label *label, struct oldmac *extmac) 1640f7b951a8SRobert Watson { 1641f7b951a8SRobert Watson int error; 1642f7b951a8SRobert Watson 1643f7b951a8SRobert Watson MAC_CHECK(externalize_vnode_oldmac, label, extmac); 1644f7b951a8SRobert Watson 1645f7b951a8SRobert Watson return (error); 1646f7b951a8SRobert Watson } 1647f7b951a8SRobert Watson 1648f7b951a8SRobert Watson static int 1649f7b951a8SRobert Watson mac_internalize_cred_label(struct label *label, char *string) 1650f7b951a8SRobert Watson { 1651f7b951a8SRobert Watson int error; 1652f7b951a8SRobert Watson 1653f7b951a8SRobert Watson MAC_INTERNALIZE(cred_label, label, string); 1654f7b951a8SRobert Watson 1655f7b951a8SRobert Watson return (error); 1656f7b951a8SRobert Watson } 1657f7b951a8SRobert Watson 1658f7b951a8SRobert Watson static int 1659f7b951a8SRobert Watson mac_internalize_ifnet_label(struct label *label, char *string) 1660f7b951a8SRobert Watson { 1661f7b951a8SRobert Watson int error; 1662f7b951a8SRobert Watson 1663f7b951a8SRobert Watson MAC_INTERNALIZE(ifnet_label, label, string); 1664f7b951a8SRobert Watson 1665f7b951a8SRobert Watson return (error); 1666f7b951a8SRobert Watson } 1667f7b951a8SRobert Watson 1668f7b951a8SRobert Watson static int 1669f7b951a8SRobert Watson mac_internalize_pipe_label(struct label *label, char *string) 1670f7b951a8SRobert Watson { 1671f7b951a8SRobert Watson int error; 1672f7b951a8SRobert Watson 1673f7b951a8SRobert Watson MAC_INTERNALIZE(pipe_label, label, string); 1674f7b951a8SRobert Watson 1675f7b951a8SRobert Watson return (error); 1676f7b951a8SRobert Watson } 1677f7b951a8SRobert Watson 1678f7b951a8SRobert Watson static int 1679f7b951a8SRobert Watson mac_internalize_socket_label(struct label *label, char *string) 1680f7b951a8SRobert Watson { 1681f7b951a8SRobert Watson int error; 1682f7b951a8SRobert Watson 1683f7b951a8SRobert Watson MAC_INTERNALIZE(socket_label, label, string); 1684f7b951a8SRobert Watson 1685f7b951a8SRobert Watson return (error); 1686f7b951a8SRobert Watson } 1687f7b951a8SRobert Watson 1688f7b951a8SRobert Watson static int 1689f7b951a8SRobert Watson mac_internalize_vnode_label(struct label *label, char *string) 1690f7b951a8SRobert Watson { 1691f7b951a8SRobert Watson int error; 1692f7b951a8SRobert Watson 1693f7b951a8SRobert Watson MAC_INTERNALIZE(vnode_label, label, string); 169469bbb5b1SRobert Watson 169569bbb5b1SRobert Watson return (error); 169669bbb5b1SRobert Watson } 169769bbb5b1SRobert Watson 169869bbb5b1SRobert Watson /* 169969bbb5b1SRobert Watson * Initialize MAC label for the first kernel process, from which other 170069bbb5b1SRobert Watson * kernel processes and threads are spawned. 170169bbb5b1SRobert Watson */ 170269bbb5b1SRobert Watson void 170369bbb5b1SRobert Watson mac_create_proc0(struct ucred *cred) 170469bbb5b1SRobert Watson { 170569bbb5b1SRobert Watson 170669bbb5b1SRobert Watson MAC_PERFORM(create_proc0, cred); 170769bbb5b1SRobert Watson } 170869bbb5b1SRobert Watson 170969bbb5b1SRobert Watson /* 171069bbb5b1SRobert Watson * Initialize MAC label for the first userland process, from which other 171169bbb5b1SRobert Watson * userland processes and threads are spawned. 171269bbb5b1SRobert Watson */ 171369bbb5b1SRobert Watson void 171469bbb5b1SRobert Watson mac_create_proc1(struct ucred *cred) 171569bbb5b1SRobert Watson { 171669bbb5b1SRobert Watson 171769bbb5b1SRobert Watson MAC_PERFORM(create_proc1, cred); 171869bbb5b1SRobert Watson } 171969bbb5b1SRobert Watson 172069bbb5b1SRobert Watson void 172169bbb5b1SRobert Watson mac_thread_userret(struct thread *td) 172269bbb5b1SRobert Watson { 172369bbb5b1SRobert Watson 172469bbb5b1SRobert Watson MAC_PERFORM(thread_userret, td); 172569bbb5b1SRobert Watson } 172669bbb5b1SRobert Watson 172769bbb5b1SRobert Watson /* 172869bbb5b1SRobert Watson * When a new process is created, its label must be initialized. Generally, 172969bbb5b1SRobert Watson * this involves inheritence from the parent process, modulo possible 173069bbb5b1SRobert Watson * deltas. This function allows that processing to take place. 173169bbb5b1SRobert Watson */ 173269bbb5b1SRobert Watson void 173369bbb5b1SRobert Watson mac_create_cred(struct ucred *parent_cred, struct ucred *child_cred) 173469bbb5b1SRobert Watson { 173569bbb5b1SRobert Watson 173669bbb5b1SRobert Watson MAC_PERFORM(create_cred, parent_cred, child_cred); 173769bbb5b1SRobert Watson } 173869bbb5b1SRobert Watson 173995fab37eSRobert Watson void 174095fab37eSRobert Watson mac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp) 174195fab37eSRobert Watson { 174295fab37eSRobert Watson 174395fab37eSRobert Watson MAC_PERFORM(update_devfsdirent, de, &de->de_label, vp, &vp->v_label); 174495fab37eSRobert Watson } 174595fab37eSRobert Watson 174695fab37eSRobert Watson void 174795fab37eSRobert Watson mac_update_procfsvnode(struct vnode *vp, struct ucred *cred) 174895fab37eSRobert Watson { 174995fab37eSRobert Watson 175095fab37eSRobert Watson MAC_PERFORM(update_procfsvnode, vp, &vp->v_label, cred); 175195fab37eSRobert Watson } 175295fab37eSRobert Watson 175395fab37eSRobert Watson /* 175495fab37eSRobert Watson * Support callout for policies that manage their own externalization 175595fab37eSRobert Watson * using extended attributes. 175695fab37eSRobert Watson */ 175795fab37eSRobert Watson static int 175895fab37eSRobert Watson mac_update_vnode_from_extattr(struct vnode *vp, struct mount *mp) 175995fab37eSRobert Watson { 176095fab37eSRobert Watson int error; 176195fab37eSRobert Watson 176295fab37eSRobert Watson MAC_CHECK(update_vnode_from_extattr, vp, &vp->v_label, mp, 176395fab37eSRobert Watson &mp->mnt_fslabel); 176495fab37eSRobert Watson 176595fab37eSRobert Watson return (error); 176695fab37eSRobert Watson } 176795fab37eSRobert Watson 176895fab37eSRobert Watson /* 176995fab37eSRobert Watson * Given an externalized mac label, internalize it and stamp it on a 177095fab37eSRobert Watson * vnode. 177195fab37eSRobert Watson */ 177295fab37eSRobert Watson static int 1773f7b951a8SRobert Watson mac_update_vnode_from_externalized(struct vnode *vp, struct oldmac *extmac) 177495fab37eSRobert Watson { 177595fab37eSRobert Watson int error; 177695fab37eSRobert Watson 177795fab37eSRobert Watson MAC_CHECK(update_vnode_from_externalized, vp, &vp->v_label, extmac); 177895fab37eSRobert Watson 177995fab37eSRobert Watson return (error); 178095fab37eSRobert Watson } 178195fab37eSRobert Watson 178295fab37eSRobert Watson /* 178395fab37eSRobert Watson * Call out to individual policies to update the label in a vnode from 178495fab37eSRobert Watson * the mountpoint. 178595fab37eSRobert Watson */ 178695fab37eSRobert Watson void 178795fab37eSRobert Watson mac_update_vnode_from_mount(struct vnode *vp, struct mount *mp) 178895fab37eSRobert Watson { 178995fab37eSRobert Watson 179095fab37eSRobert Watson MAC_PERFORM(update_vnode_from_mount, vp, &vp->v_label, mp, 179195fab37eSRobert Watson &mp->mnt_fslabel); 179295fab37eSRobert Watson 1793e6e370a7SJeff Roberson ASSERT_VOP_LOCKED(vp, "mac_update_vnode_from_mount"); 179495fab37eSRobert Watson if (mac_cache_fslabel_in_vnode) 1795e6e370a7SJeff Roberson vp->v_vflag |= VV_CACHEDLABEL; 179695fab37eSRobert Watson } 179795fab37eSRobert Watson 179895fab37eSRobert Watson /* 179995fab37eSRobert Watson * Implementation of VOP_REFRESHLABEL() that relies on extended attributes 180095fab37eSRobert Watson * to store label data. Can be referenced by filesystems supporting 180195fab37eSRobert Watson * extended attributes. 180295fab37eSRobert Watson */ 180395fab37eSRobert Watson int 180495fab37eSRobert Watson vop_stdrefreshlabel_ea(struct vop_refreshlabel_args *ap) 180595fab37eSRobert Watson { 180695fab37eSRobert Watson struct vnode *vp = ap->a_vp; 1807f7b951a8SRobert Watson struct oldmac extmac; 180895fab37eSRobert Watson int buflen, error; 180995fab37eSRobert Watson 181095fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "vop_stdrefreshlabel_ea"); 181195fab37eSRobert Watson 181295fab37eSRobert Watson /* 181395fab37eSRobert Watson * Call out to external policies first. Order doesn't really 181495fab37eSRobert Watson * matter, as long as failure of one assures failure of all. 181595fab37eSRobert Watson */ 181695fab37eSRobert Watson error = mac_update_vnode_from_extattr(vp, vp->v_mount); 181795fab37eSRobert Watson if (error) 181895fab37eSRobert Watson return (error); 181995fab37eSRobert Watson 182095fab37eSRobert Watson buflen = sizeof(extmac); 182195fab37eSRobert Watson error = vn_extattr_get(vp, IO_NODELOCKED, 182295fab37eSRobert Watson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, &buflen, 182395fab37eSRobert Watson (char *)&extmac, curthread); 182495fab37eSRobert Watson switch (error) { 182595fab37eSRobert Watson case 0: 182695fab37eSRobert Watson /* Got it */ 182795fab37eSRobert Watson break; 182895fab37eSRobert Watson 182995fab37eSRobert Watson case ENOATTR: 183095fab37eSRobert Watson /* 183195fab37eSRobert Watson * Use the label from the mount point. 183295fab37eSRobert Watson */ 183395fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 183495fab37eSRobert Watson return (0); 183595fab37eSRobert Watson 183695fab37eSRobert Watson case EOPNOTSUPP: 183795fab37eSRobert Watson default: 183895fab37eSRobert Watson /* Fail horribly. */ 183995fab37eSRobert Watson return (error); 184095fab37eSRobert Watson } 184195fab37eSRobert Watson 184295fab37eSRobert Watson if (buflen != sizeof(extmac)) 184395fab37eSRobert Watson error = EPERM; /* Fail very closed. */ 184495fab37eSRobert Watson if (error == 0) 184595fab37eSRobert Watson error = mac_update_vnode_from_externalized(vp, &extmac); 184695fab37eSRobert Watson if (error == 0) 1847e6e370a7SJeff Roberson vp->v_vflag |= VV_CACHEDLABEL; 184895fab37eSRobert Watson else { 184995fab37eSRobert Watson struct vattr va; 185095fab37eSRobert Watson 185195fab37eSRobert Watson printf("Corrupted label on %s", 185295fab37eSRobert Watson vp->v_mount->mnt_stat.f_mntonname); 185395fab37eSRobert Watson if (VOP_GETATTR(vp, &va, curthread->td_ucred, curthread) == 0) 185495fab37eSRobert Watson printf(" inum %ld", va.va_fileid); 18556be0c25eSRobert Watson #ifdef MAC_DEBUG 185695fab37eSRobert Watson if (mac_debug_label_fallback) { 185795fab37eSRobert Watson printf(", falling back.\n"); 185895fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 185995fab37eSRobert Watson error = 0; 186095fab37eSRobert Watson } else { 18616be0c25eSRobert Watson #endif 186295fab37eSRobert Watson printf(".\n"); 186395fab37eSRobert Watson error = EPERM; 18646be0c25eSRobert Watson #ifdef MAC_DEBUG 186595fab37eSRobert Watson } 18666be0c25eSRobert Watson #endif 186795fab37eSRobert Watson } 186895fab37eSRobert Watson 186995fab37eSRobert Watson return (error); 187095fab37eSRobert Watson } 187195fab37eSRobert Watson 187295fab37eSRobert Watson /* 187395fab37eSRobert Watson * Make sure the vnode label is up-to-date. If EOPNOTSUPP, then we handle 187495fab37eSRobert Watson * the labeling activity outselves. Filesystems should be careful not 187595fab37eSRobert Watson * to change their minds regarding whether they support vop_refreshlabel() 187695fab37eSRobert Watson * for a vnode or not. Don't cache the vnode here, allow the file 187795fab37eSRobert Watson * system code to determine if it's safe to cache. If we update from 187895fab37eSRobert Watson * the mount, don't cache since a change to the mount label should affect 187995fab37eSRobert Watson * all vnodes. 188095fab37eSRobert Watson */ 188195fab37eSRobert Watson static int 188295fab37eSRobert Watson vn_refreshlabel(struct vnode *vp, struct ucred *cred) 188395fab37eSRobert Watson { 188495fab37eSRobert Watson int error; 188595fab37eSRobert Watson 188695fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "vn_refreshlabel"); 188795fab37eSRobert Watson 188895fab37eSRobert Watson if (vp->v_mount == NULL) { 188995fab37eSRobert Watson /* 189095fab37eSRobert Watson Eventually, we probably want to special-case refreshing 189195fab37eSRobert Watson of deadfs vnodes, and if there's a lock-free race somewhere, 189295fab37eSRobert Watson that case might be handled here. 189395fab37eSRobert Watson 189495fab37eSRobert Watson mac_update_vnode_deadfs(vp); 189595fab37eSRobert Watson return (0); 189695fab37eSRobert Watson */ 189795fab37eSRobert Watson /* printf("vn_refreshlabel: null v_mount\n"); */ 189806be2aaaSNate Lawson if (vp->v_type != VNON) 189995fab37eSRobert Watson printf( 190006be2aaaSNate Lawson "vn_refreshlabel: null v_mount with non-VNON\n"); 190195fab37eSRobert Watson return (EBADF); 190295fab37eSRobert Watson } 190395fab37eSRobert Watson 1904e6e370a7SJeff Roberson if (vp->v_vflag & VV_CACHEDLABEL) { 190595fab37eSRobert Watson mac_vnode_label_cache_hits++; 190695fab37eSRobert Watson return (0); 190795fab37eSRobert Watson } else 190895fab37eSRobert Watson mac_vnode_label_cache_misses++; 190995fab37eSRobert Watson 191095fab37eSRobert Watson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 191195fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 191295fab37eSRobert Watson return (0); 191395fab37eSRobert Watson } 191495fab37eSRobert Watson 191595fab37eSRobert Watson error = VOP_REFRESHLABEL(vp, cred, curthread); 191695fab37eSRobert Watson switch (error) { 191795fab37eSRobert Watson case EOPNOTSUPP: 191895fab37eSRobert Watson /* 191995fab37eSRobert Watson * If labels are not supported on this vnode, fall back to 192095fab37eSRobert Watson * the label in the mount and propagate it to the vnode. 192195fab37eSRobert Watson * There should probably be some sort of policy/flag/decision 192295fab37eSRobert Watson * about doing this. 192395fab37eSRobert Watson */ 192495fab37eSRobert Watson mac_update_vnode_from_mount(vp, vp->v_mount); 192595fab37eSRobert Watson error = 0; 192695fab37eSRobert Watson default: 192795fab37eSRobert Watson return (error); 192895fab37eSRobert Watson } 192995fab37eSRobert Watson } 193095fab37eSRobert Watson 193195fab37eSRobert Watson /* 193295fab37eSRobert Watson * Helper function for file systems using the vop_std*_ea() calls. This 193395fab37eSRobert Watson * function must be called after EA service is available for the vnode, 193495fab37eSRobert Watson * but before it's hooked up to the namespace so that the node persists 193595fab37eSRobert Watson * if there's a crash, or before it can be accessed. On successful 193695fab37eSRobert Watson * commit of the label to disk (etc), do cache the label. 193795fab37eSRobert Watson */ 193895fab37eSRobert Watson int 193995fab37eSRobert Watson vop_stdcreatevnode_ea(struct vnode *dvp, struct vnode *tvp, struct ucred *cred) 194095fab37eSRobert Watson { 1941f7b951a8SRobert Watson struct oldmac extmac; 194295fab37eSRobert Watson int error; 194395fab37eSRobert Watson 1944e6e370a7SJeff Roberson ASSERT_VOP_LOCKED(tvp, "vop_stdcreatevnode_ea"); 194595fab37eSRobert Watson if ((dvp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) { 194695fab37eSRobert Watson mac_update_vnode_from_mount(tvp, tvp->v_mount); 194795fab37eSRobert Watson } else { 194895fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 194995fab37eSRobert Watson if (error) 195095fab37eSRobert Watson return (error); 195195fab37eSRobert Watson 195295fab37eSRobert Watson /* 195395fab37eSRobert Watson * Stick the label in the vnode. Then try to write to 195495fab37eSRobert Watson * disk. If we fail, return a failure to abort the 195595fab37eSRobert Watson * create operation. Really, this failure shouldn't 195695fab37eSRobert Watson * happen except in fairly unusual circumstances (out 195795fab37eSRobert Watson * of disk, etc). 195895fab37eSRobert Watson */ 195995fab37eSRobert Watson mac_create_vnode(cred, dvp, tvp); 196095fab37eSRobert Watson 196195fab37eSRobert Watson error = mac_stdcreatevnode_ea(tvp); 196295fab37eSRobert Watson if (error) 196395fab37eSRobert Watson return (error); 196495fab37eSRobert Watson 196595fab37eSRobert Watson /* 196695fab37eSRobert Watson * XXX: Eventually this will go away and all policies will 196795fab37eSRobert Watson * directly manage their extended attributes. 196895fab37eSRobert Watson */ 1969f7b951a8SRobert Watson error = mac_externalize_vnode_oldmac(&tvp->v_label, &extmac); 197095fab37eSRobert Watson if (error) 197195fab37eSRobert Watson return (error); 197295fab37eSRobert Watson 197395fab37eSRobert Watson error = vn_extattr_set(tvp, IO_NODELOCKED, 197495fab37eSRobert Watson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 197595fab37eSRobert Watson sizeof(extmac), (char *)&extmac, curthread); 197695fab37eSRobert Watson if (error == 0) 1977e6e370a7SJeff Roberson tvp->v_vflag |= VV_CACHEDLABEL; 197895fab37eSRobert Watson else { 197995fab37eSRobert Watson #if 0 198095fab37eSRobert Watson /* 198195fab37eSRobert Watson * In theory, we could have fall-back behavior here. 198295fab37eSRobert Watson * It would probably be incorrect. 198395fab37eSRobert Watson */ 198495fab37eSRobert Watson #endif 198595fab37eSRobert Watson return (error); 198695fab37eSRobert Watson } 198795fab37eSRobert Watson } 198895fab37eSRobert Watson 198995fab37eSRobert Watson return (0); 199095fab37eSRobert Watson } 199195fab37eSRobert Watson 199295fab37eSRobert Watson void 199395fab37eSRobert Watson mac_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp) 199495fab37eSRobert Watson { 199595fab37eSRobert Watson int error; 199695fab37eSRobert Watson 199795fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_execve_transition"); 199895fab37eSRobert Watson 199995fab37eSRobert Watson error = vn_refreshlabel(vp, old); 200095fab37eSRobert Watson if (error) { 200195fab37eSRobert Watson printf("mac_execve_transition: vn_refreshlabel returned %d\n", 200295fab37eSRobert Watson error); 200395fab37eSRobert Watson printf("mac_execve_transition: using old vnode label\n"); 200495fab37eSRobert Watson } 200595fab37eSRobert Watson 200695fab37eSRobert Watson MAC_PERFORM(execve_transition, old, new, vp, &vp->v_label); 200795fab37eSRobert Watson } 200895fab37eSRobert Watson 200995fab37eSRobert Watson int 201095fab37eSRobert Watson mac_execve_will_transition(struct ucred *old, struct vnode *vp) 201195fab37eSRobert Watson { 201295fab37eSRobert Watson int error, result; 201395fab37eSRobert Watson 201495fab37eSRobert Watson error = vn_refreshlabel(vp, old); 201595fab37eSRobert Watson if (error) 201695fab37eSRobert Watson return (error); 201795fab37eSRobert Watson 201895fab37eSRobert Watson result = 0; 201995fab37eSRobert Watson MAC_BOOLEAN(execve_will_transition, ||, old, vp, &vp->v_label); 202095fab37eSRobert Watson 202195fab37eSRobert Watson return (result); 202295fab37eSRobert Watson } 202395fab37eSRobert Watson 202495fab37eSRobert Watson int 202595fab37eSRobert Watson mac_check_vnode_access(struct ucred *cred, struct vnode *vp, int flags) 202695fab37eSRobert Watson { 202795fab37eSRobert Watson int error; 202895fab37eSRobert Watson 202995fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_access"); 203095fab37eSRobert Watson 203195fab37eSRobert Watson if (!mac_enforce_fs) 203295fab37eSRobert Watson return (0); 203395fab37eSRobert Watson 203495fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 203595fab37eSRobert Watson if (error) 203695fab37eSRobert Watson return (error); 203795fab37eSRobert Watson 203895fab37eSRobert Watson MAC_CHECK(check_vnode_access, cred, vp, &vp->v_label, flags); 203995fab37eSRobert Watson return (error); 204095fab37eSRobert Watson } 204195fab37eSRobert Watson 204295fab37eSRobert Watson int 204395fab37eSRobert Watson mac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp) 204495fab37eSRobert Watson { 204595fab37eSRobert Watson int error; 204695fab37eSRobert Watson 204795fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chdir"); 204895fab37eSRobert Watson 204995fab37eSRobert Watson if (!mac_enforce_fs) 205095fab37eSRobert Watson return (0); 205195fab37eSRobert Watson 205295fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 205395fab37eSRobert Watson if (error) 205495fab37eSRobert Watson return (error); 205595fab37eSRobert Watson 205695fab37eSRobert Watson MAC_CHECK(check_vnode_chdir, cred, dvp, &dvp->v_label); 205795fab37eSRobert Watson return (error); 205895fab37eSRobert Watson } 205995fab37eSRobert Watson 206095fab37eSRobert Watson int 206195fab37eSRobert Watson mac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp) 206295fab37eSRobert Watson { 206395fab37eSRobert Watson int error; 206495fab37eSRobert Watson 206595fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_chroot"); 206695fab37eSRobert Watson 206795fab37eSRobert Watson if (!mac_enforce_fs) 206895fab37eSRobert Watson return (0); 206995fab37eSRobert Watson 207095fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 207195fab37eSRobert Watson if (error) 207295fab37eSRobert Watson return (error); 207395fab37eSRobert Watson 207495fab37eSRobert Watson MAC_CHECK(check_vnode_chroot, cred, dvp, &dvp->v_label); 207595fab37eSRobert Watson return (error); 207695fab37eSRobert Watson } 207795fab37eSRobert Watson 207895fab37eSRobert Watson int 207995fab37eSRobert Watson mac_check_vnode_create(struct ucred *cred, struct vnode *dvp, 208095fab37eSRobert Watson struct componentname *cnp, struct vattr *vap) 208195fab37eSRobert Watson { 208295fab37eSRobert Watson int error; 208395fab37eSRobert Watson 208495fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_create"); 208595fab37eSRobert Watson 208695fab37eSRobert Watson if (!mac_enforce_fs) 208795fab37eSRobert Watson return (0); 208895fab37eSRobert Watson 208995fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 209095fab37eSRobert Watson if (error) 209195fab37eSRobert Watson return (error); 209295fab37eSRobert Watson 209395fab37eSRobert Watson MAC_CHECK(check_vnode_create, cred, dvp, &dvp->v_label, cnp, vap); 209495fab37eSRobert Watson return (error); 209595fab37eSRobert Watson } 209695fab37eSRobert Watson 209795fab37eSRobert Watson int 209895fab37eSRobert Watson mac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, struct vnode *vp, 209995fab37eSRobert Watson struct componentname *cnp) 210095fab37eSRobert Watson { 210195fab37eSRobert Watson int error; 210295fab37eSRobert Watson 210395fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_delete"); 210495fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_delete"); 210595fab37eSRobert Watson 210695fab37eSRobert Watson if (!mac_enforce_fs) 210795fab37eSRobert Watson return (0); 210895fab37eSRobert Watson 210995fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 211095fab37eSRobert Watson if (error) 211195fab37eSRobert Watson return (error); 211295fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 211395fab37eSRobert Watson if (error) 211495fab37eSRobert Watson return (error); 211595fab37eSRobert Watson 211695fab37eSRobert Watson MAC_CHECK(check_vnode_delete, cred, dvp, &dvp->v_label, vp, 211795fab37eSRobert Watson &vp->v_label, cnp); 211895fab37eSRobert Watson return (error); 211995fab37eSRobert Watson } 212095fab37eSRobert Watson 212195fab37eSRobert Watson int 212295fab37eSRobert Watson mac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 212395fab37eSRobert Watson acl_type_t type) 212495fab37eSRobert Watson { 212595fab37eSRobert Watson int error; 212695fab37eSRobert Watson 212795fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_deleteacl"); 212895fab37eSRobert Watson 212995fab37eSRobert Watson if (!mac_enforce_fs) 213095fab37eSRobert Watson return (0); 213195fab37eSRobert Watson 213295fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 213395fab37eSRobert Watson if (error) 213495fab37eSRobert Watson return (error); 213595fab37eSRobert Watson 213695fab37eSRobert Watson MAC_CHECK(check_vnode_deleteacl, cred, vp, &vp->v_label, type); 213795fab37eSRobert Watson return (error); 213895fab37eSRobert Watson } 213995fab37eSRobert Watson 214095fab37eSRobert Watson int 214195fab37eSRobert Watson mac_check_vnode_exec(struct ucred *cred, struct vnode *vp) 214295fab37eSRobert Watson { 214395fab37eSRobert Watson int error; 214495fab37eSRobert Watson 2145851704bbSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_exec"); 2146851704bbSRobert Watson 214795fab37eSRobert Watson if (!mac_enforce_process && !mac_enforce_fs) 214895fab37eSRobert Watson return (0); 214995fab37eSRobert Watson 215095fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 215195fab37eSRobert Watson if (error) 215295fab37eSRobert Watson return (error); 215395fab37eSRobert Watson MAC_CHECK(check_vnode_exec, cred, vp, &vp->v_label); 215495fab37eSRobert Watson 215595fab37eSRobert Watson return (error); 215695fab37eSRobert Watson } 215795fab37eSRobert Watson 215895fab37eSRobert Watson int 215995fab37eSRobert Watson mac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, acl_type_t type) 216095fab37eSRobert Watson { 216195fab37eSRobert Watson int error; 216295fab37eSRobert Watson 216395fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getacl"); 216495fab37eSRobert Watson 216595fab37eSRobert Watson if (!mac_enforce_fs) 216695fab37eSRobert Watson return (0); 216795fab37eSRobert Watson 216895fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 216995fab37eSRobert Watson if (error) 217095fab37eSRobert Watson return (error); 217195fab37eSRobert Watson 217295fab37eSRobert Watson MAC_CHECK(check_vnode_getacl, cred, vp, &vp->v_label, type); 217395fab37eSRobert Watson return (error); 217495fab37eSRobert Watson } 217595fab37eSRobert Watson 217695fab37eSRobert Watson int 217795fab37eSRobert Watson mac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 217895fab37eSRobert Watson int attrnamespace, const char *name, struct uio *uio) 217995fab37eSRobert Watson { 218095fab37eSRobert Watson int error; 218195fab37eSRobert Watson 218295fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_getextattr"); 218395fab37eSRobert Watson 218495fab37eSRobert Watson if (!mac_enforce_fs) 218595fab37eSRobert Watson return (0); 218695fab37eSRobert Watson 218795fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 218895fab37eSRobert Watson if (error) 218995fab37eSRobert Watson return (error); 219095fab37eSRobert Watson 219195fab37eSRobert Watson MAC_CHECK(check_vnode_getextattr, cred, vp, &vp->v_label, 219295fab37eSRobert Watson attrnamespace, name, uio); 219395fab37eSRobert Watson return (error); 219495fab37eSRobert Watson } 219595fab37eSRobert Watson 219695fab37eSRobert Watson int 21970a694196SRobert Watson mac_check_vnode_link(struct ucred *cred, struct vnode *dvp, 21980a694196SRobert Watson struct vnode *vp, struct componentname *cnp) 21990a694196SRobert Watson { 22000a694196SRobert Watson int error; 22010a694196SRobert Watson 22020a694196SRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_link"); 22030a694196SRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_link"); 22040a694196SRobert Watson 22050a694196SRobert Watson if (!mac_enforce_fs) 22060a694196SRobert Watson return (0); 22070a694196SRobert Watson 22080a694196SRobert Watson error = vn_refreshlabel(dvp, cred); 22090a694196SRobert Watson if (error) 22100a694196SRobert Watson return (error); 22110a694196SRobert Watson 22120a694196SRobert Watson error = vn_refreshlabel(vp, cred); 22130a694196SRobert Watson if (error) 22140a694196SRobert Watson return (error); 22150a694196SRobert Watson 22160a694196SRobert Watson MAC_CHECK(check_vnode_link, cred, dvp, &dvp->v_label, vp, 22170a694196SRobert Watson &vp->v_label, cnp); 22180a694196SRobert Watson return (error); 22190a694196SRobert Watson } 22200a694196SRobert Watson 22210a694196SRobert Watson int 222295fab37eSRobert Watson mac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 222395fab37eSRobert Watson struct componentname *cnp) 222495fab37eSRobert Watson { 222595fab37eSRobert Watson int error; 222695fab37eSRobert Watson 222795fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_lookup"); 222895fab37eSRobert Watson 222995fab37eSRobert Watson if (!mac_enforce_fs) 223095fab37eSRobert Watson return (0); 223195fab37eSRobert Watson 223295fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 223395fab37eSRobert Watson if (error) 223495fab37eSRobert Watson return (error); 223595fab37eSRobert Watson 223695fab37eSRobert Watson MAC_CHECK(check_vnode_lookup, cred, dvp, &dvp->v_label, cnp); 223795fab37eSRobert Watson return (error); 223895fab37eSRobert Watson } 223995fab37eSRobert Watson 2240e183f80eSRobert Watson int 2241e183f80eSRobert Watson mac_check_vnode_mmap(struct ucred *cred, struct vnode *vp, int prot) 224295fab37eSRobert Watson { 2243e183f80eSRobert Watson int error; 224495fab37eSRobert Watson 2245e183f80eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_mmap"); 2246ca7850c3SRobert Watson 2247e183f80eSRobert Watson if (!mac_enforce_fs || !mac_enforce_vm) 2248e183f80eSRobert Watson return (0); 2249e183f80eSRobert Watson 2250e183f80eSRobert Watson error = vn_refreshlabel(vp, cred); 2251e183f80eSRobert Watson if (error) 2252e183f80eSRobert Watson return (error); 2253e183f80eSRobert Watson 2254e183f80eSRobert Watson MAC_CHECK(check_vnode_mmap, cred, vp, &vp->v_label, prot); 2255e183f80eSRobert Watson return (error); 2256e183f80eSRobert Watson } 2257e183f80eSRobert Watson 2258e183f80eSRobert Watson void 2259e183f80eSRobert Watson mac_check_vnode_mmap_downgrade(struct ucred *cred, struct vnode *vp, int *prot) 2260e183f80eSRobert Watson { 2261e183f80eSRobert Watson int result = *prot; 2262e183f80eSRobert Watson 2263e183f80eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_mmap_downgrade"); 2264e183f80eSRobert Watson 2265e183f80eSRobert Watson if (!mac_enforce_fs || !mac_enforce_vm) 2266e183f80eSRobert Watson return; 2267e183f80eSRobert Watson 2268e183f80eSRobert Watson MAC_PERFORM(check_vnode_mmap_downgrade, cred, vp, &vp->v_label, 2269e183f80eSRobert Watson &result); 2270e183f80eSRobert Watson 2271e183f80eSRobert Watson *prot = result; 2272e183f80eSRobert Watson } 2273e183f80eSRobert Watson 2274e183f80eSRobert Watson int 2275e183f80eSRobert Watson mac_check_vnode_mprotect(struct ucred *cred, struct vnode *vp, int prot) 2276e183f80eSRobert Watson { 2277e183f80eSRobert Watson int error; 2278e183f80eSRobert Watson 2279e183f80eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_mprotect"); 2280e183f80eSRobert Watson 2281e183f80eSRobert Watson if (!mac_enforce_fs || !mac_enforce_vm) 2282e183f80eSRobert Watson return (0); 2283e183f80eSRobert Watson 2284e183f80eSRobert Watson error = vn_refreshlabel(vp, cred); 2285e183f80eSRobert Watson if (error) 2286e183f80eSRobert Watson return (error); 2287e183f80eSRobert Watson 2288e183f80eSRobert Watson MAC_CHECK(check_vnode_mprotect, cred, vp, &vp->v_label, prot); 2289e183f80eSRobert Watson return (error); 229095fab37eSRobert Watson } 229195fab37eSRobert Watson 229295fab37eSRobert Watson int 229395fab37eSRobert Watson mac_check_vnode_open(struct ucred *cred, struct vnode *vp, mode_t acc_mode) 229495fab37eSRobert Watson { 229595fab37eSRobert Watson int error; 229695fab37eSRobert Watson 229795fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_open"); 229895fab37eSRobert Watson 229995fab37eSRobert Watson if (!mac_enforce_fs) 230095fab37eSRobert Watson return (0); 230195fab37eSRobert Watson 230295fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 230395fab37eSRobert Watson if (error) 230495fab37eSRobert Watson return (error); 230595fab37eSRobert Watson 230695fab37eSRobert Watson MAC_CHECK(check_vnode_open, cred, vp, &vp->v_label, acc_mode); 230795fab37eSRobert Watson return (error); 230895fab37eSRobert Watson } 230995fab37eSRobert Watson 231095fab37eSRobert Watson int 2311177142e4SRobert Watson mac_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 2312177142e4SRobert Watson struct vnode *vp) 23137f724f8bSRobert Watson { 23147f724f8bSRobert Watson int error; 23157f724f8bSRobert Watson 23167f724f8bSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_poll"); 23177f724f8bSRobert Watson 23187f724f8bSRobert Watson if (!mac_enforce_fs) 23197f724f8bSRobert Watson return (0); 23207f724f8bSRobert Watson 2321177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 23227f724f8bSRobert Watson if (error) 23237f724f8bSRobert Watson return (error); 23247f724f8bSRobert Watson 2325177142e4SRobert Watson MAC_CHECK(check_vnode_poll, active_cred, file_cred, vp, 2326177142e4SRobert Watson &vp->v_label); 23277f724f8bSRobert Watson 23287f724f8bSRobert Watson return (error); 23297f724f8bSRobert Watson } 23307f724f8bSRobert Watson 23317f724f8bSRobert Watson int 2332177142e4SRobert Watson mac_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 2333177142e4SRobert Watson struct vnode *vp) 23347f724f8bSRobert Watson { 23357f724f8bSRobert Watson int error; 23367f724f8bSRobert Watson 23377f724f8bSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_read"); 23387f724f8bSRobert Watson 23397f724f8bSRobert Watson if (!mac_enforce_fs) 23407f724f8bSRobert Watson return (0); 23417f724f8bSRobert Watson 2342177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 23437f724f8bSRobert Watson if (error) 23447f724f8bSRobert Watson return (error); 23457f724f8bSRobert Watson 2346177142e4SRobert Watson MAC_CHECK(check_vnode_read, active_cred, file_cred, vp, 2347177142e4SRobert Watson &vp->v_label); 23487f724f8bSRobert Watson 23497f724f8bSRobert Watson return (error); 23507f724f8bSRobert Watson } 23517f724f8bSRobert Watson 23527f724f8bSRobert Watson int 235395fab37eSRobert Watson mac_check_vnode_readdir(struct ucred *cred, struct vnode *dvp) 235495fab37eSRobert Watson { 235595fab37eSRobert Watson int error; 235695fab37eSRobert Watson 235795fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_readdir"); 235895fab37eSRobert Watson 235995fab37eSRobert Watson if (!mac_enforce_fs) 236095fab37eSRobert Watson return (0); 236195fab37eSRobert Watson 236295fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 236395fab37eSRobert Watson if (error) 236495fab37eSRobert Watson return (error); 236595fab37eSRobert Watson 236695fab37eSRobert Watson MAC_CHECK(check_vnode_readdir, cred, dvp, &dvp->v_label); 236795fab37eSRobert Watson return (error); 236895fab37eSRobert Watson } 236995fab37eSRobert Watson 237095fab37eSRobert Watson int 237195fab37eSRobert Watson mac_check_vnode_readlink(struct ucred *cred, struct vnode *vp) 237295fab37eSRobert Watson { 237395fab37eSRobert Watson int error; 237495fab37eSRobert Watson 237595fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_readlink"); 237695fab37eSRobert Watson 237795fab37eSRobert Watson if (!mac_enforce_fs) 237895fab37eSRobert Watson return (0); 237995fab37eSRobert Watson 238095fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 238195fab37eSRobert Watson if (error) 238295fab37eSRobert Watson return (error); 238395fab37eSRobert Watson 238495fab37eSRobert Watson MAC_CHECK(check_vnode_readlink, cred, vp, &vp->v_label); 238595fab37eSRobert Watson return (error); 238695fab37eSRobert Watson } 238795fab37eSRobert Watson 238895fab37eSRobert Watson static int 238995fab37eSRobert Watson mac_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 239095fab37eSRobert Watson struct label *newlabel) 239195fab37eSRobert Watson { 239295fab37eSRobert Watson int error; 239395fab37eSRobert Watson 239495fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_relabel"); 239595fab37eSRobert Watson 239695fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 239795fab37eSRobert Watson if (error) 239895fab37eSRobert Watson return (error); 239995fab37eSRobert Watson 240095fab37eSRobert Watson MAC_CHECK(check_vnode_relabel, cred, vp, &vp->v_label, newlabel); 240195fab37eSRobert Watson 240295fab37eSRobert Watson return (error); 240395fab37eSRobert Watson } 240495fab37eSRobert Watson 240595fab37eSRobert Watson int 240695fab37eSRobert Watson mac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 240795fab37eSRobert Watson struct vnode *vp, struct componentname *cnp) 240895fab37eSRobert Watson { 240995fab37eSRobert Watson int error; 241095fab37eSRobert Watson 241195fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_from"); 241295fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_from"); 241395fab37eSRobert Watson 241495fab37eSRobert Watson if (!mac_enforce_fs) 241595fab37eSRobert Watson return (0); 241695fab37eSRobert Watson 241795fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 241895fab37eSRobert Watson if (error) 241995fab37eSRobert Watson return (error); 242095fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 242195fab37eSRobert Watson if (error) 242295fab37eSRobert Watson return (error); 242395fab37eSRobert Watson 242495fab37eSRobert Watson MAC_CHECK(check_vnode_rename_from, cred, dvp, &dvp->v_label, vp, 242595fab37eSRobert Watson &vp->v_label, cnp); 242695fab37eSRobert Watson return (error); 242795fab37eSRobert Watson } 242895fab37eSRobert Watson 242995fab37eSRobert Watson int 243095fab37eSRobert Watson mac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 243195fab37eSRobert Watson struct vnode *vp, int samedir, struct componentname *cnp) 243295fab37eSRobert Watson { 243395fab37eSRobert Watson int error; 243495fab37eSRobert Watson 243595fab37eSRobert Watson ASSERT_VOP_LOCKED(dvp, "mac_check_vnode_rename_to"); 243695fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_rename_to"); 243795fab37eSRobert Watson 243895fab37eSRobert Watson if (!mac_enforce_fs) 243995fab37eSRobert Watson return (0); 244095fab37eSRobert Watson 244195fab37eSRobert Watson error = vn_refreshlabel(dvp, cred); 244295fab37eSRobert Watson if (error) 244395fab37eSRobert Watson return (error); 244495fab37eSRobert Watson if (vp != NULL) { 244595fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 244695fab37eSRobert Watson if (error) 244795fab37eSRobert Watson return (error); 244895fab37eSRobert Watson } 244995fab37eSRobert Watson MAC_CHECK(check_vnode_rename_to, cred, dvp, &dvp->v_label, vp, 245095fab37eSRobert Watson vp != NULL ? &vp->v_label : NULL, samedir, cnp); 245195fab37eSRobert Watson return (error); 245295fab37eSRobert Watson } 245395fab37eSRobert Watson 245495fab37eSRobert Watson int 245595fab37eSRobert Watson mac_check_vnode_revoke(struct ucred *cred, struct vnode *vp) 245695fab37eSRobert Watson { 245795fab37eSRobert Watson int error; 245895fab37eSRobert Watson 245995fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_revoke"); 246095fab37eSRobert Watson 246195fab37eSRobert Watson if (!mac_enforce_fs) 246295fab37eSRobert Watson return (0); 246395fab37eSRobert Watson 246495fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 246595fab37eSRobert Watson if (error) 246695fab37eSRobert Watson return (error); 246795fab37eSRobert Watson 246895fab37eSRobert Watson MAC_CHECK(check_vnode_revoke, cred, vp, &vp->v_label); 246995fab37eSRobert Watson return (error); 247095fab37eSRobert Watson } 247195fab37eSRobert Watson 247295fab37eSRobert Watson int 247395fab37eSRobert Watson mac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, acl_type_t type, 247495fab37eSRobert Watson struct acl *acl) 247595fab37eSRobert Watson { 247695fab37eSRobert Watson int error; 247795fab37eSRobert Watson 247895fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setacl"); 247995fab37eSRobert Watson 248095fab37eSRobert Watson if (!mac_enforce_fs) 248195fab37eSRobert Watson return (0); 248295fab37eSRobert Watson 248395fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 248495fab37eSRobert Watson if (error) 248595fab37eSRobert Watson return (error); 248695fab37eSRobert Watson 248795fab37eSRobert Watson MAC_CHECK(check_vnode_setacl, cred, vp, &vp->v_label, type, acl); 248895fab37eSRobert Watson return (error); 248995fab37eSRobert Watson } 249095fab37eSRobert Watson 249195fab37eSRobert Watson int 249295fab37eSRobert Watson mac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 249395fab37eSRobert Watson int attrnamespace, const char *name, struct uio *uio) 249495fab37eSRobert Watson { 249595fab37eSRobert Watson int error; 249695fab37eSRobert Watson 249795fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setextattr"); 249895fab37eSRobert Watson 249995fab37eSRobert Watson if (!mac_enforce_fs) 250095fab37eSRobert Watson return (0); 250195fab37eSRobert Watson 250295fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 250395fab37eSRobert Watson if (error) 250495fab37eSRobert Watson return (error); 250595fab37eSRobert Watson 250695fab37eSRobert Watson MAC_CHECK(check_vnode_setextattr, cred, vp, &vp->v_label, 250795fab37eSRobert Watson attrnamespace, name, uio); 250895fab37eSRobert Watson return (error); 250995fab37eSRobert Watson } 251095fab37eSRobert Watson 251195fab37eSRobert Watson int 251295fab37eSRobert Watson mac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, u_long flags) 251395fab37eSRobert Watson { 251495fab37eSRobert Watson int error; 251595fab37eSRobert Watson 251695fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setflags"); 251795fab37eSRobert Watson 251895fab37eSRobert Watson if (!mac_enforce_fs) 251995fab37eSRobert Watson return (0); 252095fab37eSRobert Watson 252195fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 252295fab37eSRobert Watson if (error) 252395fab37eSRobert Watson return (error); 252495fab37eSRobert Watson 252595fab37eSRobert Watson MAC_CHECK(check_vnode_setflags, cred, vp, &vp->v_label, flags); 252695fab37eSRobert Watson return (error); 252795fab37eSRobert Watson } 252895fab37eSRobert Watson 252995fab37eSRobert Watson int 253095fab37eSRobert Watson mac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, mode_t mode) 253195fab37eSRobert Watson { 253295fab37eSRobert Watson int error; 253395fab37eSRobert Watson 253495fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setmode"); 253595fab37eSRobert Watson 253695fab37eSRobert Watson if (!mac_enforce_fs) 253795fab37eSRobert Watson return (0); 253895fab37eSRobert Watson 253995fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 254095fab37eSRobert Watson if (error) 254195fab37eSRobert Watson return (error); 254295fab37eSRobert Watson 254395fab37eSRobert Watson MAC_CHECK(check_vnode_setmode, cred, vp, &vp->v_label, mode); 254495fab37eSRobert Watson return (error); 254595fab37eSRobert Watson } 254695fab37eSRobert Watson 254795fab37eSRobert Watson int 254895fab37eSRobert Watson mac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, uid_t uid, 254995fab37eSRobert Watson gid_t gid) 255095fab37eSRobert Watson { 255195fab37eSRobert Watson int error; 255295fab37eSRobert Watson 255395fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setowner"); 255495fab37eSRobert Watson 255595fab37eSRobert Watson if (!mac_enforce_fs) 255695fab37eSRobert Watson return (0); 255795fab37eSRobert Watson 255895fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 255995fab37eSRobert Watson if (error) 256095fab37eSRobert Watson return (error); 256195fab37eSRobert Watson 256295fab37eSRobert Watson MAC_CHECK(check_vnode_setowner, cred, vp, &vp->v_label, uid, gid); 256395fab37eSRobert Watson return (error); 256495fab37eSRobert Watson } 256595fab37eSRobert Watson 256695fab37eSRobert Watson int 256795fab37eSRobert Watson mac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 256895fab37eSRobert Watson struct timespec atime, struct timespec mtime) 256995fab37eSRobert Watson { 257095fab37eSRobert Watson int error; 257195fab37eSRobert Watson 257295fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_setutimes"); 257395fab37eSRobert Watson 257495fab37eSRobert Watson if (!mac_enforce_fs) 257595fab37eSRobert Watson return (0); 257695fab37eSRobert Watson 257795fab37eSRobert Watson error = vn_refreshlabel(vp, cred); 257895fab37eSRobert Watson if (error) 257995fab37eSRobert Watson return (error); 258095fab37eSRobert Watson 258195fab37eSRobert Watson MAC_CHECK(check_vnode_setutimes, cred, vp, &vp->v_label, atime, 258295fab37eSRobert Watson mtime); 258395fab37eSRobert Watson return (error); 258495fab37eSRobert Watson } 258595fab37eSRobert Watson 258695fab37eSRobert Watson int 2587177142e4SRobert Watson mac_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 2588177142e4SRobert Watson struct vnode *vp) 258995fab37eSRobert Watson { 259095fab37eSRobert Watson int error; 259195fab37eSRobert Watson 259295fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_stat"); 259395fab37eSRobert Watson 259495fab37eSRobert Watson if (!mac_enforce_fs) 259595fab37eSRobert Watson return (0); 259695fab37eSRobert Watson 2597177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 259895fab37eSRobert Watson if (error) 259995fab37eSRobert Watson return (error); 260095fab37eSRobert Watson 2601177142e4SRobert Watson MAC_CHECK(check_vnode_stat, active_cred, file_cred, vp, 2602177142e4SRobert Watson &vp->v_label); 260395fab37eSRobert Watson return (error); 260495fab37eSRobert Watson } 260595fab37eSRobert Watson 26067f724f8bSRobert Watson int 2607177142e4SRobert Watson mac_check_vnode_write(struct ucred *active_cred, struct ucred *file_cred, 2608177142e4SRobert Watson struct vnode *vp) 26097f724f8bSRobert Watson { 26107f724f8bSRobert Watson int error; 26117f724f8bSRobert Watson 26127f724f8bSRobert Watson ASSERT_VOP_LOCKED(vp, "mac_check_vnode_write"); 26137f724f8bSRobert Watson 26147f724f8bSRobert Watson if (!mac_enforce_fs) 26157f724f8bSRobert Watson return (0); 26167f724f8bSRobert Watson 2617177142e4SRobert Watson error = vn_refreshlabel(vp, active_cred); 26187f724f8bSRobert Watson if (error) 26197f724f8bSRobert Watson return (error); 26207f724f8bSRobert Watson 2621177142e4SRobert Watson MAC_CHECK(check_vnode_write, active_cred, file_cred, vp, 2622177142e4SRobert Watson &vp->v_label); 26237f724f8bSRobert Watson 26247f724f8bSRobert Watson return (error); 26257f724f8bSRobert Watson } 26267f724f8bSRobert Watson 262795fab37eSRobert Watson /* 262895fab37eSRobert Watson * When relabeling a process, call out to the policies for the maximum 262995fab37eSRobert Watson * permission allowed for each object type we know about in its 263095fab37eSRobert Watson * memory space, and revoke access (in the least surprising ways we 263195fab37eSRobert Watson * know) when necessary. The process lock is not held here. 263295fab37eSRobert Watson */ 263395fab37eSRobert Watson static void 263495fab37eSRobert Watson mac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred) 263595fab37eSRobert Watson { 263695fab37eSRobert Watson 263795fab37eSRobert Watson /* XXX freeze all other threads */ 263895fab37eSRobert Watson mac_cred_mmapped_drop_perms_recurse(td, cred, 263995fab37eSRobert Watson &td->td_proc->p_vmspace->vm_map); 264095fab37eSRobert Watson /* XXX allow other threads to continue */ 264195fab37eSRobert Watson } 264295fab37eSRobert Watson 264395fab37eSRobert Watson static __inline const char * 264495fab37eSRobert Watson prot2str(vm_prot_t prot) 264595fab37eSRobert Watson { 264695fab37eSRobert Watson 264795fab37eSRobert Watson switch (prot & VM_PROT_ALL) { 264895fab37eSRobert Watson case VM_PROT_READ: 264995fab37eSRobert Watson return ("r--"); 265095fab37eSRobert Watson case VM_PROT_READ | VM_PROT_WRITE: 265195fab37eSRobert Watson return ("rw-"); 265295fab37eSRobert Watson case VM_PROT_READ | VM_PROT_EXECUTE: 265395fab37eSRobert Watson return ("r-x"); 265495fab37eSRobert Watson case VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE: 265595fab37eSRobert Watson return ("rwx"); 265695fab37eSRobert Watson case VM_PROT_WRITE: 265795fab37eSRobert Watson return ("-w-"); 265895fab37eSRobert Watson case VM_PROT_EXECUTE: 265995fab37eSRobert Watson return ("--x"); 266095fab37eSRobert Watson case VM_PROT_WRITE | VM_PROT_EXECUTE: 266195fab37eSRobert Watson return ("-wx"); 266295fab37eSRobert Watson default: 266395fab37eSRobert Watson return ("---"); 266495fab37eSRobert Watson } 266595fab37eSRobert Watson } 266695fab37eSRobert Watson 266795fab37eSRobert Watson static void 266895fab37eSRobert Watson mac_cred_mmapped_drop_perms_recurse(struct thread *td, struct ucred *cred, 266995fab37eSRobert Watson struct vm_map *map) 267095fab37eSRobert Watson { 267195fab37eSRobert Watson struct vm_map_entry *vme; 2672e183f80eSRobert Watson int result; 2673e183f80eSRobert Watson vm_prot_t revokeperms; 267495fab37eSRobert Watson vm_object_t object; 267595fab37eSRobert Watson vm_ooffset_t offset; 267695fab37eSRobert Watson struct vnode *vp; 267795fab37eSRobert Watson 2678c0f39905SRobert Watson if (!mac_mmap_revocation) 2679c0f39905SRobert Watson return; 2680c0f39905SRobert Watson 268195fab37eSRobert Watson vm_map_lock_read(map); 268295fab37eSRobert Watson for (vme = map->header.next; vme != &map->header; vme = vme->next) { 268395fab37eSRobert Watson if (vme->eflags & MAP_ENTRY_IS_SUB_MAP) { 268495fab37eSRobert Watson mac_cred_mmapped_drop_perms_recurse(td, cred, 268595fab37eSRobert Watson vme->object.sub_map); 268695fab37eSRobert Watson continue; 268795fab37eSRobert Watson } 268895fab37eSRobert Watson /* 268995fab37eSRobert Watson * Skip over entries that obviously are not shared. 269095fab37eSRobert Watson */ 269195fab37eSRobert Watson if (vme->eflags & (MAP_ENTRY_COW | MAP_ENTRY_NOSYNC) || 269295fab37eSRobert Watson !vme->max_protection) 269395fab37eSRobert Watson continue; 269495fab37eSRobert Watson /* 269595fab37eSRobert Watson * Drill down to the deepest backing object. 269695fab37eSRobert Watson */ 269795fab37eSRobert Watson offset = vme->offset; 269895fab37eSRobert Watson object = vme->object.vm_object; 269995fab37eSRobert Watson if (object == NULL) 270095fab37eSRobert Watson continue; 270195fab37eSRobert Watson while (object->backing_object != NULL) { 270295fab37eSRobert Watson object = object->backing_object; 270395fab37eSRobert Watson offset += object->backing_object_offset; 270495fab37eSRobert Watson } 270595fab37eSRobert Watson /* 270695fab37eSRobert Watson * At the moment, vm_maps and objects aren't considered 270795fab37eSRobert Watson * by the MAC system, so only things with backing by a 270895fab37eSRobert Watson * normal object (read: vnodes) are checked. 270995fab37eSRobert Watson */ 271095fab37eSRobert Watson if (object->type != OBJT_VNODE) 271195fab37eSRobert Watson continue; 271295fab37eSRobert Watson vp = (struct vnode *)object->handle; 271395fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 2714e183f80eSRobert Watson result = vme->max_protection; 2715e183f80eSRobert Watson mac_check_vnode_mmap_downgrade(cred, vp, &result); 271695fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 271795fab37eSRobert Watson /* 271895fab37eSRobert Watson * Find out what maximum protection we may be allowing 271995fab37eSRobert Watson * now but a policy needs to get removed. 272095fab37eSRobert Watson */ 272195fab37eSRobert Watson revokeperms = vme->max_protection & ~result; 272295fab37eSRobert Watson if (!revokeperms) 272395fab37eSRobert Watson continue; 2724b656366bSBruce Evans printf("pid %ld: revoking %s perms from %#lx:%ld " 2725b656366bSBruce Evans "(max %s/cur %s)\n", (long)td->td_proc->p_pid, 2726b656366bSBruce Evans prot2str(revokeperms), (u_long)vme->start, 2727b656366bSBruce Evans (long)(vme->end - vme->start), 272895fab37eSRobert Watson prot2str(vme->max_protection), prot2str(vme->protection)); 272995fab37eSRobert Watson vm_map_lock_upgrade(map); 273095fab37eSRobert Watson /* 273195fab37eSRobert Watson * This is the really simple case: if a map has more 273295fab37eSRobert Watson * max_protection than is allowed, but it's not being 273395fab37eSRobert Watson * actually used (that is, the current protection is 273495fab37eSRobert Watson * still allowed), we can just wipe it out and do 273595fab37eSRobert Watson * nothing more. 273695fab37eSRobert Watson */ 273795fab37eSRobert Watson if ((vme->protection & revokeperms) == 0) { 273895fab37eSRobert Watson vme->max_protection -= revokeperms; 273995fab37eSRobert Watson } else { 274095fab37eSRobert Watson if (revokeperms & VM_PROT_WRITE) { 274195fab37eSRobert Watson /* 274295fab37eSRobert Watson * In the more complicated case, flush out all 274395fab37eSRobert Watson * pending changes to the object then turn it 274495fab37eSRobert Watson * copy-on-write. 274595fab37eSRobert Watson */ 274695fab37eSRobert Watson vm_object_reference(object); 274795fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 274895fab37eSRobert Watson vm_object_page_clean(object, 274995fab37eSRobert Watson OFF_TO_IDX(offset), 275095fab37eSRobert Watson OFF_TO_IDX(offset + vme->end - vme->start + 275195fab37eSRobert Watson PAGE_MASK), 275295fab37eSRobert Watson OBJPC_SYNC); 275395fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 275495fab37eSRobert Watson vm_object_deallocate(object); 275595fab37eSRobert Watson /* 275695fab37eSRobert Watson * Why bother if there's no read permissions 275795fab37eSRobert Watson * anymore? For the rest, we need to leave 275895fab37eSRobert Watson * the write permissions on for COW, or 275995fab37eSRobert Watson * remove them entirely if configured to. 276095fab37eSRobert Watson */ 276195fab37eSRobert Watson if (!mac_mmap_revocation_via_cow) { 276295fab37eSRobert Watson vme->max_protection &= ~VM_PROT_WRITE; 276395fab37eSRobert Watson vme->protection &= ~VM_PROT_WRITE; 276495fab37eSRobert Watson } if ((revokeperms & VM_PROT_READ) == 0) 276595fab37eSRobert Watson vme->eflags |= MAP_ENTRY_COW | 276695fab37eSRobert Watson MAP_ENTRY_NEEDS_COPY; 276795fab37eSRobert Watson } 276895fab37eSRobert Watson if (revokeperms & VM_PROT_EXECUTE) { 276995fab37eSRobert Watson vme->max_protection &= ~VM_PROT_EXECUTE; 277095fab37eSRobert Watson vme->protection &= ~VM_PROT_EXECUTE; 277195fab37eSRobert Watson } 277295fab37eSRobert Watson if (revokeperms & VM_PROT_READ) { 277395fab37eSRobert Watson vme->max_protection = 0; 277495fab37eSRobert Watson vme->protection = 0; 277595fab37eSRobert Watson } 277695fab37eSRobert Watson pmap_protect(map->pmap, vme->start, vme->end, 277795fab37eSRobert Watson vme->protection & ~revokeperms); 277895fab37eSRobert Watson vm_map_simplify_entry(map, vme); 277995fab37eSRobert Watson } 278095fab37eSRobert Watson vm_map_lock_downgrade(map); 278195fab37eSRobert Watson } 278295fab37eSRobert Watson vm_map_unlock_read(map); 278395fab37eSRobert Watson } 278495fab37eSRobert Watson 278595fab37eSRobert Watson /* 278695fab37eSRobert Watson * When the subject's label changes, it may require revocation of privilege 278795fab37eSRobert Watson * to mapped objects. This can't be done on-the-fly later with a unified 278895fab37eSRobert Watson * buffer cache. 278995fab37eSRobert Watson */ 279095fab37eSRobert Watson static void 279195fab37eSRobert Watson mac_relabel_cred(struct ucred *cred, struct label *newlabel) 279295fab37eSRobert Watson { 279395fab37eSRobert Watson 279495fab37eSRobert Watson MAC_PERFORM(relabel_cred, cred, newlabel); 279595fab37eSRobert Watson } 279695fab37eSRobert Watson 279795fab37eSRobert Watson void 279895fab37eSRobert Watson mac_relabel_vnode(struct ucred *cred, struct vnode *vp, struct label *newlabel) 279995fab37eSRobert Watson { 280095fab37eSRobert Watson 280195fab37eSRobert Watson MAC_PERFORM(relabel_vnode, cred, vp, &vp->v_label, newlabel); 280295fab37eSRobert Watson } 280395fab37eSRobert Watson 280495fab37eSRobert Watson void 280595fab37eSRobert Watson mac_create_ifnet(struct ifnet *ifnet) 280695fab37eSRobert Watson { 280795fab37eSRobert Watson 280895fab37eSRobert Watson MAC_PERFORM(create_ifnet, ifnet, &ifnet->if_label); 280995fab37eSRobert Watson } 281095fab37eSRobert Watson 281195fab37eSRobert Watson void 281295fab37eSRobert Watson mac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d) 281395fab37eSRobert Watson { 281495fab37eSRobert Watson 281595fab37eSRobert Watson MAC_PERFORM(create_bpfdesc, cred, bpf_d, &bpf_d->bd_label); 281695fab37eSRobert Watson } 281795fab37eSRobert Watson 281895fab37eSRobert Watson void 281995fab37eSRobert Watson mac_create_socket(struct ucred *cred, struct socket *socket) 282095fab37eSRobert Watson { 282195fab37eSRobert Watson 282295fab37eSRobert Watson MAC_PERFORM(create_socket, cred, socket, &socket->so_label); 282395fab37eSRobert Watson } 282495fab37eSRobert Watson 282595fab37eSRobert Watson void 282695fab37eSRobert Watson mac_create_pipe(struct ucred *cred, struct pipe *pipe) 282795fab37eSRobert Watson { 282895fab37eSRobert Watson 282995fab37eSRobert Watson MAC_PERFORM(create_pipe, cred, pipe, pipe->pipe_label); 283095fab37eSRobert Watson } 283195fab37eSRobert Watson 283295fab37eSRobert Watson void 283395fab37eSRobert Watson mac_create_socket_from_socket(struct socket *oldsocket, 283495fab37eSRobert Watson struct socket *newsocket) 283595fab37eSRobert Watson { 283695fab37eSRobert Watson 283795fab37eSRobert Watson MAC_PERFORM(create_socket_from_socket, oldsocket, &oldsocket->so_label, 283895fab37eSRobert Watson newsocket, &newsocket->so_label); 283995fab37eSRobert Watson } 284095fab37eSRobert Watson 284195fab37eSRobert Watson static void 284295fab37eSRobert Watson mac_relabel_socket(struct ucred *cred, struct socket *socket, 284395fab37eSRobert Watson struct label *newlabel) 284495fab37eSRobert Watson { 284595fab37eSRobert Watson 284695fab37eSRobert Watson MAC_PERFORM(relabel_socket, cred, socket, &socket->so_label, newlabel); 284795fab37eSRobert Watson } 284895fab37eSRobert Watson 284995fab37eSRobert Watson static void 285095fab37eSRobert Watson mac_relabel_pipe(struct ucred *cred, struct pipe *pipe, struct label *newlabel) 285195fab37eSRobert Watson { 285295fab37eSRobert Watson 285395fab37eSRobert Watson MAC_PERFORM(relabel_pipe, cred, pipe, pipe->pipe_label, newlabel); 285495fab37eSRobert Watson } 285595fab37eSRobert Watson 285695fab37eSRobert Watson void 285795fab37eSRobert Watson mac_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct socket *socket) 285895fab37eSRobert Watson { 285995fab37eSRobert Watson 286095fab37eSRobert Watson MAC_PERFORM(set_socket_peer_from_mbuf, mbuf, &mbuf->m_pkthdr.label, 286195fab37eSRobert Watson socket, &socket->so_peerlabel); 286295fab37eSRobert Watson } 286395fab37eSRobert Watson 286495fab37eSRobert Watson void 286595fab37eSRobert Watson mac_set_socket_peer_from_socket(struct socket *oldsocket, 286695fab37eSRobert Watson struct socket *newsocket) 286795fab37eSRobert Watson { 286895fab37eSRobert Watson 286995fab37eSRobert Watson MAC_PERFORM(set_socket_peer_from_socket, oldsocket, 287095fab37eSRobert Watson &oldsocket->so_label, newsocket, &newsocket->so_peerlabel); 287195fab37eSRobert Watson } 287295fab37eSRobert Watson 287395fab37eSRobert Watson void 287495fab37eSRobert Watson mac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram) 287595fab37eSRobert Watson { 287695fab37eSRobert Watson 287795fab37eSRobert Watson MAC_PERFORM(create_datagram_from_ipq, ipq, &ipq->ipq_label, 287895fab37eSRobert Watson datagram, &datagram->m_pkthdr.label); 287995fab37eSRobert Watson } 288095fab37eSRobert Watson 288195fab37eSRobert Watson void 288295fab37eSRobert Watson mac_create_fragment(struct mbuf *datagram, struct mbuf *fragment) 288395fab37eSRobert Watson { 288495fab37eSRobert Watson 288595fab37eSRobert Watson MAC_PERFORM(create_fragment, datagram, &datagram->m_pkthdr.label, 288695fab37eSRobert Watson fragment, &fragment->m_pkthdr.label); 288795fab37eSRobert Watson } 288895fab37eSRobert Watson 288995fab37eSRobert Watson void 289095fab37eSRobert Watson mac_create_ipq(struct mbuf *fragment, struct ipq *ipq) 289195fab37eSRobert Watson { 289295fab37eSRobert Watson 289395fab37eSRobert Watson MAC_PERFORM(create_ipq, fragment, &fragment->m_pkthdr.label, ipq, 289495fab37eSRobert Watson &ipq->ipq_label); 289595fab37eSRobert Watson } 289695fab37eSRobert Watson 289795fab37eSRobert Watson void 289895fab37eSRobert Watson mac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf) 289995fab37eSRobert Watson { 290095fab37eSRobert Watson 290195fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_mbuf, oldmbuf, &oldmbuf->m_pkthdr.label, 290295fab37eSRobert Watson newmbuf, &newmbuf->m_pkthdr.label); 290395fab37eSRobert Watson } 290495fab37eSRobert Watson 290595fab37eSRobert Watson void 290695fab37eSRobert Watson mac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *mbuf) 290795fab37eSRobert Watson { 290895fab37eSRobert Watson 290995fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_bpfdesc, bpf_d, &bpf_d->bd_label, mbuf, 291095fab37eSRobert Watson &mbuf->m_pkthdr.label); 291195fab37eSRobert Watson } 291295fab37eSRobert Watson 291395fab37eSRobert Watson void 291495fab37eSRobert Watson mac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *mbuf) 291595fab37eSRobert Watson { 291695fab37eSRobert Watson 291795fab37eSRobert Watson MAC_PERFORM(create_mbuf_linklayer, ifnet, &ifnet->if_label, mbuf, 291895fab37eSRobert Watson &mbuf->m_pkthdr.label); 291995fab37eSRobert Watson } 292095fab37eSRobert Watson 292195fab37eSRobert Watson void 292295fab37eSRobert Watson mac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *mbuf) 292395fab37eSRobert Watson { 292495fab37eSRobert Watson 292595fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_ifnet, ifnet, &ifnet->if_label, mbuf, 292695fab37eSRobert Watson &mbuf->m_pkthdr.label); 292795fab37eSRobert Watson } 292895fab37eSRobert Watson 292995fab37eSRobert Watson void 293095fab37eSRobert Watson mac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, struct ifnet *ifnet, 293195fab37eSRobert Watson struct mbuf *newmbuf) 293295fab37eSRobert Watson { 293395fab37eSRobert Watson 293495fab37eSRobert Watson MAC_PERFORM(create_mbuf_multicast_encap, oldmbuf, 293595fab37eSRobert Watson &oldmbuf->m_pkthdr.label, ifnet, &ifnet->if_label, newmbuf, 293695fab37eSRobert Watson &newmbuf->m_pkthdr.label); 293795fab37eSRobert Watson } 293895fab37eSRobert Watson 293995fab37eSRobert Watson void 294095fab37eSRobert Watson mac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf) 294195fab37eSRobert Watson { 294295fab37eSRobert Watson 294395fab37eSRobert Watson MAC_PERFORM(create_mbuf_netlayer, oldmbuf, &oldmbuf->m_pkthdr.label, 294495fab37eSRobert Watson newmbuf, &newmbuf->m_pkthdr.label); 294595fab37eSRobert Watson } 294695fab37eSRobert Watson 294795fab37eSRobert Watson int 294895fab37eSRobert Watson mac_fragment_match(struct mbuf *fragment, struct ipq *ipq) 294995fab37eSRobert Watson { 295095fab37eSRobert Watson int result; 295195fab37eSRobert Watson 295295fab37eSRobert Watson result = 1; 295395fab37eSRobert Watson MAC_BOOLEAN(fragment_match, &&, fragment, &fragment->m_pkthdr.label, 295495fab37eSRobert Watson ipq, &ipq->ipq_label); 295595fab37eSRobert Watson 295695fab37eSRobert Watson return (result); 295795fab37eSRobert Watson } 295895fab37eSRobert Watson 295995fab37eSRobert Watson void 296095fab37eSRobert Watson mac_update_ipq(struct mbuf *fragment, struct ipq *ipq) 296195fab37eSRobert Watson { 296295fab37eSRobert Watson 296395fab37eSRobert Watson MAC_PERFORM(update_ipq, fragment, &fragment->m_pkthdr.label, ipq, 296495fab37eSRobert Watson &ipq->ipq_label); 296595fab37eSRobert Watson } 296695fab37eSRobert Watson 296795fab37eSRobert Watson void 296895fab37eSRobert Watson mac_create_mbuf_from_socket(struct socket *socket, struct mbuf *mbuf) 296995fab37eSRobert Watson { 297095fab37eSRobert Watson 297195fab37eSRobert Watson MAC_PERFORM(create_mbuf_from_socket, socket, &socket->so_label, mbuf, 297295fab37eSRobert Watson &mbuf->m_pkthdr.label); 297395fab37eSRobert Watson } 297495fab37eSRobert Watson 297595fab37eSRobert Watson void 297695fab37eSRobert Watson mac_create_mount(struct ucred *cred, struct mount *mp) 297795fab37eSRobert Watson { 297895fab37eSRobert Watson 297995fab37eSRobert Watson MAC_PERFORM(create_mount, cred, mp, &mp->mnt_mntlabel, 298095fab37eSRobert Watson &mp->mnt_fslabel); 298195fab37eSRobert Watson } 298295fab37eSRobert Watson 298395fab37eSRobert Watson void 298495fab37eSRobert Watson mac_create_root_mount(struct ucred *cred, struct mount *mp) 298595fab37eSRobert Watson { 298695fab37eSRobert Watson 298795fab37eSRobert Watson MAC_PERFORM(create_root_mount, cred, mp, &mp->mnt_mntlabel, 298895fab37eSRobert Watson &mp->mnt_fslabel); 298995fab37eSRobert Watson } 299095fab37eSRobert Watson 299195fab37eSRobert Watson int 299295fab37eSRobert Watson mac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet) 299395fab37eSRobert Watson { 299495fab37eSRobert Watson int error; 299595fab37eSRobert Watson 299695fab37eSRobert Watson if (!mac_enforce_network) 299795fab37eSRobert Watson return (0); 299895fab37eSRobert Watson 299995fab37eSRobert Watson MAC_CHECK(check_bpfdesc_receive, bpf_d, &bpf_d->bd_label, ifnet, 300095fab37eSRobert Watson &ifnet->if_label); 300195fab37eSRobert Watson 300295fab37eSRobert Watson return (error); 300395fab37eSRobert Watson } 300495fab37eSRobert Watson 300595fab37eSRobert Watson static int 300695fab37eSRobert Watson mac_check_cred_relabel(struct ucred *cred, struct label *newlabel) 300795fab37eSRobert Watson { 300895fab37eSRobert Watson int error; 300995fab37eSRobert Watson 301095fab37eSRobert Watson MAC_CHECK(check_cred_relabel, cred, newlabel); 301195fab37eSRobert Watson 301295fab37eSRobert Watson return (error); 301395fab37eSRobert Watson } 301495fab37eSRobert Watson 301595fab37eSRobert Watson int 301695fab37eSRobert Watson mac_check_cred_visible(struct ucred *u1, struct ucred *u2) 301795fab37eSRobert Watson { 301895fab37eSRobert Watson int error; 301995fab37eSRobert Watson 302095fab37eSRobert Watson if (!mac_enforce_process) 302195fab37eSRobert Watson return (0); 302295fab37eSRobert Watson 302395fab37eSRobert Watson MAC_CHECK(check_cred_visible, u1, u2); 302495fab37eSRobert Watson 302595fab37eSRobert Watson return (error); 302695fab37eSRobert Watson } 302795fab37eSRobert Watson 302895fab37eSRobert Watson int 302995fab37eSRobert Watson mac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *mbuf) 303095fab37eSRobert Watson { 303195fab37eSRobert Watson int error; 303295fab37eSRobert Watson 303395fab37eSRobert Watson if (!mac_enforce_network) 303495fab37eSRobert Watson return (0); 303595fab37eSRobert Watson 303695fab37eSRobert Watson KASSERT(mbuf->m_flags & M_PKTHDR, ("packet has no pkthdr")); 303795fab37eSRobert Watson if (!(mbuf->m_pkthdr.label.l_flags & MAC_FLAG_INITIALIZED)) 303829e1b85fSBrooks Davis if_printf(ifnet, "not initialized\n"); 303995fab37eSRobert Watson 304095fab37eSRobert Watson MAC_CHECK(check_ifnet_transmit, ifnet, &ifnet->if_label, mbuf, 304195fab37eSRobert Watson &mbuf->m_pkthdr.label); 304295fab37eSRobert Watson 304395fab37eSRobert Watson return (error); 304495fab37eSRobert Watson } 304595fab37eSRobert Watson 304695fab37eSRobert Watson int 304795fab37eSRobert Watson mac_check_mount_stat(struct ucred *cred, struct mount *mount) 304895fab37eSRobert Watson { 304995fab37eSRobert Watson int error; 305095fab37eSRobert Watson 305195fab37eSRobert Watson if (!mac_enforce_fs) 305295fab37eSRobert Watson return (0); 305395fab37eSRobert Watson 305495fab37eSRobert Watson MAC_CHECK(check_mount_stat, cred, mount, &mount->mnt_mntlabel); 305595fab37eSRobert Watson 305695fab37eSRobert Watson return (error); 305795fab37eSRobert Watson } 305895fab37eSRobert Watson 305995fab37eSRobert Watson int 306095fab37eSRobert Watson mac_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe, unsigned long cmd, 306195fab37eSRobert Watson void *data) 306295fab37eSRobert Watson { 306395fab37eSRobert Watson int error; 306495fab37eSRobert Watson 30651aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 30661aa37f53SRobert Watson 30671aa37f53SRobert Watson if (!mac_enforce_pipe) 30681aa37f53SRobert Watson return (0); 30691aa37f53SRobert Watson 307095fab37eSRobert Watson MAC_CHECK(check_pipe_ioctl, cred, pipe, pipe->pipe_label, cmd, data); 307195fab37eSRobert Watson 307295fab37eSRobert Watson return (error); 307395fab37eSRobert Watson } 307495fab37eSRobert Watson 307595fab37eSRobert Watson int 3076c024c3eeSRobert Watson mac_check_pipe_poll(struct ucred *cred, struct pipe *pipe) 307795fab37eSRobert Watson { 307895fab37eSRobert Watson int error; 307995fab37eSRobert Watson 30801aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 30811aa37f53SRobert Watson 30821aa37f53SRobert Watson if (!mac_enforce_pipe) 30831aa37f53SRobert Watson return (0); 30841aa37f53SRobert Watson 3085c024c3eeSRobert Watson MAC_CHECK(check_pipe_poll, cred, pipe, pipe->pipe_label); 3086c024c3eeSRobert Watson 3087c024c3eeSRobert Watson return (error); 3088c024c3eeSRobert Watson } 3089c024c3eeSRobert Watson 3090c024c3eeSRobert Watson int 3091c024c3eeSRobert Watson mac_check_pipe_read(struct ucred *cred, struct pipe *pipe) 3092c024c3eeSRobert Watson { 3093c024c3eeSRobert Watson int error; 3094c024c3eeSRobert Watson 30951aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 30961aa37f53SRobert Watson 30971aa37f53SRobert Watson if (!mac_enforce_pipe) 30981aa37f53SRobert Watson return (0); 30991aa37f53SRobert Watson 3100c024c3eeSRobert Watson MAC_CHECK(check_pipe_read, cred, pipe, pipe->pipe_label); 310195fab37eSRobert Watson 310295fab37eSRobert Watson return (error); 310395fab37eSRobert Watson } 310495fab37eSRobert Watson 310595fab37eSRobert Watson static int 310695fab37eSRobert Watson mac_check_pipe_relabel(struct ucred *cred, struct pipe *pipe, 310795fab37eSRobert Watson struct label *newlabel) 310895fab37eSRobert Watson { 310995fab37eSRobert Watson int error; 311095fab37eSRobert Watson 31111aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 31121aa37f53SRobert Watson 31131aa37f53SRobert Watson if (!mac_enforce_pipe) 31141aa37f53SRobert Watson return (0); 31151aa37f53SRobert Watson 311695fab37eSRobert Watson MAC_CHECK(check_pipe_relabel, cred, pipe, pipe->pipe_label, newlabel); 311795fab37eSRobert Watson 311895fab37eSRobert Watson return (error); 311995fab37eSRobert Watson } 312095fab37eSRobert Watson 312195fab37eSRobert Watson int 3122c024c3eeSRobert Watson mac_check_pipe_stat(struct ucred *cred, struct pipe *pipe) 3123c024c3eeSRobert Watson { 3124c024c3eeSRobert Watson int error; 3125c024c3eeSRobert Watson 31261aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 31271aa37f53SRobert Watson 31281aa37f53SRobert Watson if (!mac_enforce_pipe) 31291aa37f53SRobert Watson return (0); 31301aa37f53SRobert Watson 3131c024c3eeSRobert Watson MAC_CHECK(check_pipe_stat, cred, pipe, pipe->pipe_label); 3132c024c3eeSRobert Watson 3133c024c3eeSRobert Watson return (error); 3134c024c3eeSRobert Watson } 3135c024c3eeSRobert Watson 3136c024c3eeSRobert Watson int 3137c024c3eeSRobert Watson mac_check_pipe_write(struct ucred *cred, struct pipe *pipe) 3138c024c3eeSRobert Watson { 3139c024c3eeSRobert Watson int error; 3140c024c3eeSRobert Watson 31411aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 31421aa37f53SRobert Watson 31431aa37f53SRobert Watson if (!mac_enforce_pipe) 31441aa37f53SRobert Watson return (0); 31451aa37f53SRobert Watson 3146c024c3eeSRobert Watson MAC_CHECK(check_pipe_write, cred, pipe, pipe->pipe_label); 3147c024c3eeSRobert Watson 3148c024c3eeSRobert Watson return (error); 3149c024c3eeSRobert Watson } 3150c024c3eeSRobert Watson 3151c024c3eeSRobert Watson int 315295fab37eSRobert Watson mac_check_proc_debug(struct ucred *cred, struct proc *proc) 315395fab37eSRobert Watson { 315495fab37eSRobert Watson int error; 315595fab37eSRobert Watson 3156b12baf55SRobert Watson PROC_LOCK_ASSERT(proc, MA_OWNED); 3157b12baf55SRobert Watson 315895fab37eSRobert Watson if (!mac_enforce_process) 315995fab37eSRobert Watson return (0); 316095fab37eSRobert Watson 316195fab37eSRobert Watson MAC_CHECK(check_proc_debug, cred, proc); 316295fab37eSRobert Watson 316395fab37eSRobert Watson return (error); 316495fab37eSRobert Watson } 316595fab37eSRobert Watson 316695fab37eSRobert Watson int 316795fab37eSRobert Watson mac_check_proc_sched(struct ucred *cred, struct proc *proc) 316895fab37eSRobert Watson { 316995fab37eSRobert Watson int error; 317095fab37eSRobert Watson 3171b12baf55SRobert Watson PROC_LOCK_ASSERT(proc, MA_OWNED); 3172b12baf55SRobert Watson 317395fab37eSRobert Watson if (!mac_enforce_process) 317495fab37eSRobert Watson return (0); 317595fab37eSRobert Watson 317695fab37eSRobert Watson MAC_CHECK(check_proc_sched, cred, proc); 317795fab37eSRobert Watson 317895fab37eSRobert Watson return (error); 317995fab37eSRobert Watson } 318095fab37eSRobert Watson 318195fab37eSRobert Watson int 318295fab37eSRobert Watson mac_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 318395fab37eSRobert Watson { 318495fab37eSRobert Watson int error; 318595fab37eSRobert Watson 3186b12baf55SRobert Watson PROC_LOCK_ASSERT(proc, MA_OWNED); 3187b12baf55SRobert Watson 318895fab37eSRobert Watson if (!mac_enforce_process) 318995fab37eSRobert Watson return (0); 319095fab37eSRobert Watson 319195fab37eSRobert Watson MAC_CHECK(check_proc_signal, cred, proc, signum); 319295fab37eSRobert Watson 319395fab37eSRobert Watson return (error); 319495fab37eSRobert Watson } 319595fab37eSRobert Watson 319695fab37eSRobert Watson int 319795fab37eSRobert Watson mac_check_socket_bind(struct ucred *ucred, struct socket *socket, 319895fab37eSRobert Watson struct sockaddr *sockaddr) 319995fab37eSRobert Watson { 320095fab37eSRobert Watson int error; 320195fab37eSRobert Watson 320295fab37eSRobert Watson if (!mac_enforce_socket) 320395fab37eSRobert Watson return (0); 320495fab37eSRobert Watson 320595fab37eSRobert Watson MAC_CHECK(check_socket_bind, ucred, socket, &socket->so_label, 320695fab37eSRobert Watson sockaddr); 320795fab37eSRobert Watson 320895fab37eSRobert Watson return (error); 320995fab37eSRobert Watson } 321095fab37eSRobert Watson 321195fab37eSRobert Watson int 321295fab37eSRobert Watson mac_check_socket_connect(struct ucred *cred, struct socket *socket, 321395fab37eSRobert Watson struct sockaddr *sockaddr) 321495fab37eSRobert Watson { 321595fab37eSRobert Watson int error; 321695fab37eSRobert Watson 321795fab37eSRobert Watson if (!mac_enforce_socket) 321895fab37eSRobert Watson return (0); 321995fab37eSRobert Watson 322095fab37eSRobert Watson MAC_CHECK(check_socket_connect, cred, socket, &socket->so_label, 322195fab37eSRobert Watson sockaddr); 322295fab37eSRobert Watson 322395fab37eSRobert Watson return (error); 322495fab37eSRobert Watson } 322595fab37eSRobert Watson 322695fab37eSRobert Watson int 3227d61198e4SRobert Watson mac_check_socket_deliver(struct socket *socket, struct mbuf *mbuf) 3228d61198e4SRobert Watson { 3229d61198e4SRobert Watson int error; 3230d61198e4SRobert Watson 3231d61198e4SRobert Watson if (!mac_enforce_socket) 3232d61198e4SRobert Watson return (0); 3233d61198e4SRobert Watson 3234d61198e4SRobert Watson MAC_CHECK(check_socket_deliver, socket, &socket->so_label, mbuf, 3235d61198e4SRobert Watson &mbuf->m_pkthdr.label); 3236d61198e4SRobert Watson 3237d61198e4SRobert Watson return (error); 3238d61198e4SRobert Watson } 3239d61198e4SRobert Watson 3240d61198e4SRobert Watson int 324195fab37eSRobert Watson mac_check_socket_listen(struct ucred *cred, struct socket *socket) 324295fab37eSRobert Watson { 324395fab37eSRobert Watson int error; 324495fab37eSRobert Watson 324595fab37eSRobert Watson if (!mac_enforce_socket) 324695fab37eSRobert Watson return (0); 324795fab37eSRobert Watson 324895fab37eSRobert Watson MAC_CHECK(check_socket_listen, cred, socket, &socket->so_label); 324995fab37eSRobert Watson return (error); 325095fab37eSRobert Watson } 325195fab37eSRobert Watson 3252b371c939SRobert Watson int 3253b371c939SRobert Watson mac_check_socket_receive(struct ucred *cred, struct socket *so) 3254b371c939SRobert Watson { 3255b371c939SRobert Watson int error; 3256b371c939SRobert Watson 3257b371c939SRobert Watson if (!mac_enforce_socket) 3258b371c939SRobert Watson return (0); 3259b371c939SRobert Watson 3260b371c939SRobert Watson MAC_CHECK(check_socket_receive, cred, so, &so->so_label); 3261b371c939SRobert Watson 3262b371c939SRobert Watson return (error); 3263b371c939SRobert Watson } 3264b371c939SRobert Watson 326595fab37eSRobert Watson static int 326695fab37eSRobert Watson mac_check_socket_relabel(struct ucred *cred, struct socket *socket, 326795fab37eSRobert Watson struct label *newlabel) 326895fab37eSRobert Watson { 326995fab37eSRobert Watson int error; 327095fab37eSRobert Watson 327195fab37eSRobert Watson MAC_CHECK(check_socket_relabel, cred, socket, &socket->so_label, 327295fab37eSRobert Watson newlabel); 327395fab37eSRobert Watson 327495fab37eSRobert Watson return (error); 327595fab37eSRobert Watson } 327695fab37eSRobert Watson 327795fab37eSRobert Watson int 3278b371c939SRobert Watson mac_check_socket_send(struct ucred *cred, struct socket *so) 3279b371c939SRobert Watson { 3280b371c939SRobert Watson int error; 3281b371c939SRobert Watson 3282b371c939SRobert Watson if (!mac_enforce_socket) 3283b371c939SRobert Watson return (0); 3284b371c939SRobert Watson 3285b371c939SRobert Watson MAC_CHECK(check_socket_send, cred, so, &so->so_label); 3286b371c939SRobert Watson 3287b371c939SRobert Watson return (error); 3288b371c939SRobert Watson } 3289b371c939SRobert Watson 3290b371c939SRobert Watson int 329195fab37eSRobert Watson mac_check_socket_visible(struct ucred *cred, struct socket *socket) 329295fab37eSRobert Watson { 329395fab37eSRobert Watson int error; 329495fab37eSRobert Watson 329595fab37eSRobert Watson if (!mac_enforce_socket) 329695fab37eSRobert Watson return (0); 329795fab37eSRobert Watson 329895fab37eSRobert Watson MAC_CHECK(check_socket_visible, cred, socket, &socket->so_label); 329995fab37eSRobert Watson 330095fab37eSRobert Watson return (error); 330195fab37eSRobert Watson } 330295fab37eSRobert Watson 330395fab37eSRobert Watson int 330495fab37eSRobert Watson mac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, 330595fab37eSRobert Watson struct ifnet *ifnet) 330695fab37eSRobert Watson { 3307f7b951a8SRobert Watson char *elements, *buffer; 3308f7b951a8SRobert Watson struct mac mac; 330995fab37eSRobert Watson int error; 331095fab37eSRobert Watson 3311f7b951a8SRobert Watson error = copyin(ifr->ifr_ifru.ifru_data, &mac, sizeof(mac)); 331295fab37eSRobert Watson if (error) 331395fab37eSRobert Watson return (error); 331495fab37eSRobert Watson 3315f7b951a8SRobert Watson error = mac_check_structmac_consistent(&mac); 3316f7b951a8SRobert Watson if (error) 3317f7b951a8SRobert Watson return (error); 3318f7b951a8SRobert Watson 3319f7b951a8SRobert Watson elements = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK); 3320f7b951a8SRobert Watson 3321f7b951a8SRobert Watson error = copyinstr(mac.m_string, elements, mac.m_buflen, NULL); 3322f7b951a8SRobert Watson if (error) { 3323f7b951a8SRobert Watson free(elements, M_MACTEMP); 3324f7b951a8SRobert Watson return (error); 3325f7b951a8SRobert Watson } 3326f7b951a8SRobert Watson 3327f7b951a8SRobert Watson buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK | M_ZERO); 3328f7b951a8SRobert Watson 3329f7b951a8SRobert Watson error = mac_externalize_ifnet_label(&ifnet->if_label, elements, 3330f7b951a8SRobert Watson buffer, mac.m_buflen, M_WAITOK); 3331f7b951a8SRobert Watson if (error == 0) 3332f7b951a8SRobert Watson error = copyout(buffer, mac.m_string, strlen(buffer)+1); 3333f7b951a8SRobert Watson 3334f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3335f7b951a8SRobert Watson free(elements, M_MACTEMP); 3336f7b951a8SRobert Watson 3337f7b951a8SRobert Watson return (error); 333895fab37eSRobert Watson } 333995fab37eSRobert Watson 334095fab37eSRobert Watson int 334195fab37eSRobert Watson mac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, 334295fab37eSRobert Watson struct ifnet *ifnet) 334395fab37eSRobert Watson { 334495fab37eSRobert Watson struct label intlabel; 3345f7b951a8SRobert Watson struct mac mac; 3346f7b951a8SRobert Watson char *buffer; 334795fab37eSRobert Watson int error; 334895fab37eSRobert Watson 3349f7b951a8SRobert Watson error = copyin(ifr->ifr_ifru.ifru_data, &mac, sizeof(mac)); 335095fab37eSRobert Watson if (error) 335195fab37eSRobert Watson return (error); 335295fab37eSRobert Watson 3353f7b951a8SRobert Watson error = mac_check_structmac_consistent(&mac); 335495fab37eSRobert Watson if (error) 335595fab37eSRobert Watson return (error); 335695fab37eSRobert Watson 3357f7b951a8SRobert Watson buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK); 3358f7b951a8SRobert Watson 3359f7b951a8SRobert Watson error = copyinstr(mac.m_string, buffer, mac.m_buflen, NULL); 3360f7b951a8SRobert Watson if (error) { 3361f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3362f7b951a8SRobert Watson return (error); 3363f7b951a8SRobert Watson } 3364f7b951a8SRobert Watson 3365f7b951a8SRobert Watson mac_init_ifnet_label(&intlabel); 3366f7b951a8SRobert Watson error = mac_internalize_ifnet_label(&intlabel, buffer); 3367f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3368f7b951a8SRobert Watson if (error) { 3369f7b951a8SRobert Watson mac_destroy_ifnet_label(&intlabel); 3370f7b951a8SRobert Watson return (error); 3371f7b951a8SRobert Watson } 3372f7b951a8SRobert Watson 337395fab37eSRobert Watson /* 337495fab37eSRobert Watson * XXX: Note that this is a redundant privilege check, since 337595fab37eSRobert Watson * policies impose this check themselves if required by the 337695fab37eSRobert Watson * policy. Eventually, this should go away. 337795fab37eSRobert Watson */ 337895fab37eSRobert Watson error = suser_cred(cred, 0); 3379f7b951a8SRobert Watson if (error) { 3380f7b951a8SRobert Watson mac_destroy_ifnet_label(&intlabel); 3381f7b951a8SRobert Watson return (error); 3382f7b951a8SRobert Watson } 338395fab37eSRobert Watson 338495fab37eSRobert Watson MAC_CHECK(check_ifnet_relabel, cred, ifnet, &ifnet->if_label, 338595fab37eSRobert Watson &intlabel); 3386f7b951a8SRobert Watson if (error) { 3387f7b951a8SRobert Watson mac_destroy_ifnet_label(&intlabel); 3388f7b951a8SRobert Watson return (error); 3389f7b951a8SRobert Watson } 339095fab37eSRobert Watson 339195fab37eSRobert Watson MAC_PERFORM(relabel_ifnet, cred, ifnet, &ifnet->if_label, &intlabel); 339295fab37eSRobert Watson 3393f7b951a8SRobert Watson mac_destroy_ifnet_label(&intlabel); 3394f7b951a8SRobert Watson return (0); 339595fab37eSRobert Watson } 339695fab37eSRobert Watson 339795fab37eSRobert Watson void 339895fab37eSRobert Watson mac_create_devfs_vnode(struct devfs_dirent *de, struct vnode *vp) 339995fab37eSRobert Watson { 340095fab37eSRobert Watson 340195fab37eSRobert Watson MAC_PERFORM(create_devfs_vnode, de, &de->de_label, vp, &vp->v_label); 340295fab37eSRobert Watson } 340395fab37eSRobert Watson 340495fab37eSRobert Watson void 340595fab37eSRobert Watson mac_create_devfs_device(dev_t dev, struct devfs_dirent *de) 340695fab37eSRobert Watson { 340795fab37eSRobert Watson 340895fab37eSRobert Watson MAC_PERFORM(create_devfs_device, dev, de, &de->de_label); 340995fab37eSRobert Watson } 341095fab37eSRobert Watson 341174e62b1bSRobert Watson void 341274e62b1bSRobert Watson mac_create_devfs_symlink(struct ucred *cred, struct devfs_dirent *dd, 341374e62b1bSRobert Watson struct devfs_dirent *de) 341474e62b1bSRobert Watson { 341574e62b1bSRobert Watson 341674e62b1bSRobert Watson MAC_PERFORM(create_devfs_symlink, cred, dd, &dd->de_label, de, 341774e62b1bSRobert Watson &de->de_label); 341874e62b1bSRobert Watson } 341974e62b1bSRobert Watson 342095fab37eSRobert Watson static int 342195fab37eSRobert Watson mac_stdcreatevnode_ea(struct vnode *vp) 342295fab37eSRobert Watson { 342395fab37eSRobert Watson int error; 342495fab37eSRobert Watson 342595fab37eSRobert Watson MAC_CHECK(stdcreatevnode_ea, vp, &vp->v_label); 342695fab37eSRobert Watson 342795fab37eSRobert Watson return (error); 342895fab37eSRobert Watson } 342995fab37eSRobert Watson 343095fab37eSRobert Watson void 343195fab37eSRobert Watson mac_create_devfs_directory(char *dirname, int dirnamelen, 343295fab37eSRobert Watson struct devfs_dirent *de) 343395fab37eSRobert Watson { 343495fab37eSRobert Watson 343595fab37eSRobert Watson MAC_PERFORM(create_devfs_directory, dirname, dirnamelen, de, 343695fab37eSRobert Watson &de->de_label); 343795fab37eSRobert Watson } 343895fab37eSRobert Watson 343995fab37eSRobert Watson /* 344095fab37eSRobert Watson * When a new vnode is created, this call will initialize its label. 344195fab37eSRobert Watson */ 344295fab37eSRobert Watson void 344395fab37eSRobert Watson mac_create_vnode(struct ucred *cred, struct vnode *parent, 344495fab37eSRobert Watson struct vnode *child) 344595fab37eSRobert Watson { 344695fab37eSRobert Watson int error; 344795fab37eSRobert Watson 344895fab37eSRobert Watson ASSERT_VOP_LOCKED(parent, "mac_create_vnode"); 344995fab37eSRobert Watson ASSERT_VOP_LOCKED(child, "mac_create_vnode"); 345095fab37eSRobert Watson 345195fab37eSRobert Watson error = vn_refreshlabel(parent, cred); 345295fab37eSRobert Watson if (error) { 345395fab37eSRobert Watson printf("mac_create_vnode: vn_refreshlabel returned %d\n", 345495fab37eSRobert Watson error); 345595fab37eSRobert Watson printf("mac_create_vnode: using old vnode label\n"); 345695fab37eSRobert Watson } 345795fab37eSRobert Watson 345895fab37eSRobert Watson MAC_PERFORM(create_vnode, cred, parent, &parent->v_label, child, 345995fab37eSRobert Watson &child->v_label); 346095fab37eSRobert Watson } 346195fab37eSRobert Watson 346295fab37eSRobert Watson int 346395fab37eSRobert Watson mac_setsockopt_label_set(struct ucred *cred, struct socket *so, 3464f7b951a8SRobert Watson struct mac *mac) 346595fab37eSRobert Watson { 346695fab37eSRobert Watson struct label intlabel; 3467f7b951a8SRobert Watson char *buffer; 346895fab37eSRobert Watson int error; 346995fab37eSRobert Watson 3470f7b951a8SRobert Watson error = mac_check_structmac_consistent(mac); 347195fab37eSRobert Watson if (error) 347295fab37eSRobert Watson return (error); 347395fab37eSRobert Watson 3474f7b951a8SRobert Watson buffer = malloc(mac->m_buflen, M_MACTEMP, M_WAITOK); 3475f7b951a8SRobert Watson 3476f7b951a8SRobert Watson error = copyinstr(mac->m_string, buffer, mac->m_buflen, NULL); 3477f7b951a8SRobert Watson if (error) { 3478f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3479f7b951a8SRobert Watson return (error); 3480f7b951a8SRobert Watson } 3481f7b951a8SRobert Watson 3482f7b951a8SRobert Watson mac_init_socket_label(&intlabel, M_WAITOK); 3483f7b951a8SRobert Watson error = mac_internalize_socket_label(&intlabel, buffer); 3484f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3485f7b951a8SRobert Watson if (error) { 3486f7b951a8SRobert Watson mac_destroy_socket_label(&intlabel); 3487f7b951a8SRobert Watson return (error); 3488f7b951a8SRobert Watson } 3489f7b951a8SRobert Watson 349095fab37eSRobert Watson mac_check_socket_relabel(cred, so, &intlabel); 349195fab37eSRobert Watson if (error) { 3492f7b951a8SRobert Watson mac_destroy_socket_label(&intlabel); 349395fab37eSRobert Watson return (error); 349495fab37eSRobert Watson } 349595fab37eSRobert Watson 349695fab37eSRobert Watson mac_relabel_socket(cred, so, &intlabel); 349795fab37eSRobert Watson 3498f7b951a8SRobert Watson mac_destroy_socket_label(&intlabel); 349995fab37eSRobert Watson return (0); 350095fab37eSRobert Watson } 350195fab37eSRobert Watson 350295fab37eSRobert Watson int 350395fab37eSRobert Watson mac_pipe_label_set(struct ucred *cred, struct pipe *pipe, struct label *label) 350495fab37eSRobert Watson { 350595fab37eSRobert Watson int error; 350695fab37eSRobert Watson 35071aa37f53SRobert Watson PIPE_LOCK_ASSERT(pipe, MA_OWNED); 35081aa37f53SRobert Watson 350995fab37eSRobert Watson error = mac_check_pipe_relabel(cred, pipe, label); 351095fab37eSRobert Watson if (error) 351195fab37eSRobert Watson return (error); 351295fab37eSRobert Watson 351395fab37eSRobert Watson mac_relabel_pipe(cred, pipe, label); 351495fab37eSRobert Watson 351595fab37eSRobert Watson return (0); 351695fab37eSRobert Watson } 351795fab37eSRobert Watson 351895fab37eSRobert Watson int 351995fab37eSRobert Watson mac_getsockopt_label_get(struct ucred *cred, struct socket *so, 3520f7b951a8SRobert Watson struct mac *mac) 352195fab37eSRobert Watson { 3522f7b951a8SRobert Watson char *buffer, *elements; 3523f7b951a8SRobert Watson int error; 352495fab37eSRobert Watson 3525f7b951a8SRobert Watson error = mac_check_structmac_consistent(mac); 3526f7b951a8SRobert Watson if (error) 3527f7b951a8SRobert Watson return (error); 3528f7b951a8SRobert Watson 3529f7b951a8SRobert Watson elements = malloc(mac->m_buflen, M_MACTEMP, M_WAITOK); 3530f7b951a8SRobert Watson 3531f7b951a8SRobert Watson error = copyinstr(mac->m_string, elements, mac->m_buflen, NULL); 3532f7b951a8SRobert Watson if (error) { 3533f7b951a8SRobert Watson free(elements, M_MACTEMP); 3534f7b951a8SRobert Watson return (error); 3535f7b951a8SRobert Watson } 3536f7b951a8SRobert Watson 3537f7b951a8SRobert Watson buffer = malloc(mac->m_buflen, M_MACTEMP, M_WAITOK | M_ZERO); 3538f7b951a8SRobert Watson 3539f7b951a8SRobert Watson error = mac_externalize_socket_label(&so->so_label, elements, 3540f7b951a8SRobert Watson buffer, mac->m_buflen, M_WAITOK); 3541f7b951a8SRobert Watson if (error == 0) 3542f7b951a8SRobert Watson error = copyout(buffer, mac->m_string, strlen(buffer)+1); 3543f7b951a8SRobert Watson 3544f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3545f7b951a8SRobert Watson free(elements, M_MACTEMP); 3546f7b951a8SRobert Watson 3547f7b951a8SRobert Watson return (error); 354895fab37eSRobert Watson } 354995fab37eSRobert Watson 355095fab37eSRobert Watson int 355195fab37eSRobert Watson mac_getsockopt_peerlabel_get(struct ucred *cred, struct socket *so, 3552f7b951a8SRobert Watson struct mac *mac) 355395fab37eSRobert Watson { 3554f7b951a8SRobert Watson char *elements, *buffer; 3555f7b951a8SRobert Watson int error; 355695fab37eSRobert Watson 3557f7b951a8SRobert Watson error = mac_check_structmac_consistent(mac); 3558f7b951a8SRobert Watson if (error) 3559f7b951a8SRobert Watson return (error); 3560f7b951a8SRobert Watson 3561f7b951a8SRobert Watson elements = malloc(mac->m_buflen, M_MACTEMP, M_WAITOK); 3562f7b951a8SRobert Watson 3563f7b951a8SRobert Watson error = copyinstr(mac->m_string, elements, mac->m_buflen, NULL); 3564f7b951a8SRobert Watson if (error) { 3565f7b951a8SRobert Watson free(elements, M_MACTEMP); 3566f7b951a8SRobert Watson return (error); 3567f7b951a8SRobert Watson } 3568f7b951a8SRobert Watson 3569f7b951a8SRobert Watson buffer = malloc(mac->m_buflen, M_MACTEMP, M_WAITOK | M_ZERO); 3570f7b951a8SRobert Watson 3571f7b951a8SRobert Watson error = mac_externalize_socket_peer_label(&so->so_peerlabel, 3572f7b951a8SRobert Watson elements, buffer, mac->m_buflen, M_WAITOK); 3573f7b951a8SRobert Watson if (error == 0) 3574f7b951a8SRobert Watson error = copyout(buffer, mac->m_string, strlen(buffer)+1); 3575f7b951a8SRobert Watson 3576f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3577f7b951a8SRobert Watson free(elements, M_MACTEMP); 3578f7b951a8SRobert Watson 3579f7b951a8SRobert Watson return (error); 358095fab37eSRobert Watson } 358195fab37eSRobert Watson 358295fab37eSRobert Watson /* 358395fab37eSRobert Watson * Implementation of VOP_SETLABEL() that relies on extended attributes 358495fab37eSRobert Watson * to store label data. Can be referenced by filesystems supporting 358595fab37eSRobert Watson * extended attributes. 358695fab37eSRobert Watson */ 358795fab37eSRobert Watson int 358895fab37eSRobert Watson vop_stdsetlabel_ea(struct vop_setlabel_args *ap) 358995fab37eSRobert Watson { 359095fab37eSRobert Watson struct vnode *vp = ap->a_vp; 359195fab37eSRobert Watson struct label *intlabel = ap->a_label; 3592f7b951a8SRobert Watson struct oldmac extmac; 359395fab37eSRobert Watson int error; 359495fab37eSRobert Watson 359595fab37eSRobert Watson ASSERT_VOP_LOCKED(vp, "vop_stdsetlabel_ea"); 359695fab37eSRobert Watson 359795fab37eSRobert Watson /* 359895fab37eSRobert Watson * XXX: Eventually call out to EA check/set calls here. 359995fab37eSRobert Watson * Be particularly careful to avoid race conditions, 360095fab37eSRobert Watson * consistency problems, and stability problems when 360195fab37eSRobert Watson * dealing with multiple EAs. In particular, we require 360295fab37eSRobert Watson * the ability to write multiple EAs on the same file in 360395fab37eSRobert Watson * a single transaction, which the current EA interface 360495fab37eSRobert Watson * does not provide. 360595fab37eSRobert Watson */ 360695fab37eSRobert Watson 3607f7b951a8SRobert Watson error = mac_externalize_vnode_oldmac(intlabel, &extmac); 360895fab37eSRobert Watson if (error) 360995fab37eSRobert Watson return (error); 361095fab37eSRobert Watson 361195fab37eSRobert Watson error = vn_extattr_set(vp, IO_NODELOCKED, 361295fab37eSRobert Watson FREEBSD_MAC_EXTATTR_NAMESPACE, FREEBSD_MAC_EXTATTR_NAME, 361395fab37eSRobert Watson sizeof(extmac), (char *)&extmac, curthread); 361495fab37eSRobert Watson if (error) 361595fab37eSRobert Watson return (error); 361695fab37eSRobert Watson 361795fab37eSRobert Watson mac_relabel_vnode(ap->a_cred, vp, intlabel); 361895fab37eSRobert Watson 3619e6e370a7SJeff Roberson vp->v_vflag |= VV_CACHEDLABEL; 362095fab37eSRobert Watson 362195fab37eSRobert Watson return (0); 362295fab37eSRobert Watson } 362395fab37eSRobert Watson 362495fab37eSRobert Watson static int 362595fab37eSRobert Watson vn_setlabel(struct vnode *vp, struct label *intlabel, struct ucred *cred) 362695fab37eSRobert Watson { 362795fab37eSRobert Watson int error; 362895fab37eSRobert Watson 362995fab37eSRobert Watson if (vp->v_mount == NULL) { 363095fab37eSRobert Watson /* printf("vn_setlabel: null v_mount\n"); */ 363106be2aaaSNate Lawson if (vp->v_type != VNON) 363206be2aaaSNate Lawson printf("vn_setlabel: null v_mount with non-VNON\n"); 363395fab37eSRobert Watson return (EBADF); 363495fab37eSRobert Watson } 363595fab37eSRobert Watson 363695fab37eSRobert Watson if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) 363795fab37eSRobert Watson return (EOPNOTSUPP); 363895fab37eSRobert Watson 363995fab37eSRobert Watson /* 364095fab37eSRobert Watson * Multi-phase commit. First check the policies to confirm the 364195fab37eSRobert Watson * change is OK. Then commit via the filesystem. Finally, 364295fab37eSRobert Watson * update the actual vnode label. Question: maybe the filesystem 364395fab37eSRobert Watson * should update the vnode at the end as part of VOP_SETLABEL()? 364495fab37eSRobert Watson */ 364595fab37eSRobert Watson error = mac_check_vnode_relabel(cred, vp, intlabel); 364695fab37eSRobert Watson if (error) 364795fab37eSRobert Watson return (error); 364895fab37eSRobert Watson 364995fab37eSRobert Watson /* 365095fab37eSRobert Watson * VADMIN provides the opportunity for the filesystem to make 365195fab37eSRobert Watson * decisions about who is and is not able to modify labels 365295fab37eSRobert Watson * and protections on files. This might not be right. We can't 365395fab37eSRobert Watson * assume VOP_SETLABEL() will do it, because we might implement 365495fab37eSRobert Watson * that as part of vop_stdsetlabel_ea(). 365595fab37eSRobert Watson */ 365695fab37eSRobert Watson error = VOP_ACCESS(vp, VADMIN, cred, curthread); 365795fab37eSRobert Watson if (error) 365895fab37eSRobert Watson return (error); 365995fab37eSRobert Watson 366095fab37eSRobert Watson error = VOP_SETLABEL(vp, intlabel, cred, curthread); 366195fab37eSRobert Watson if (error) 366295fab37eSRobert Watson return (error); 366395fab37eSRobert Watson 366495fab37eSRobert Watson return (0); 366595fab37eSRobert Watson } 366695fab37eSRobert Watson 3667f7b951a8SRobert Watson int 3668f7b951a8SRobert Watson __mac_get_pid(struct thread *td, struct __mac_get_pid_args *uap) 3669f7b951a8SRobert Watson { 3670f7b951a8SRobert Watson char *elements, *buffer; 3671f7b951a8SRobert Watson struct mac mac; 3672f7b951a8SRobert Watson struct proc *tproc; 3673f7b951a8SRobert Watson struct ucred *tcred; 3674f7b951a8SRobert Watson int error; 3675f7b951a8SRobert Watson 3676f7b951a8SRobert Watson error = copyin(SCARG(uap, mac_p), &mac, sizeof(mac)); 3677f7b951a8SRobert Watson if (error) 3678f7b951a8SRobert Watson return (error); 3679f7b951a8SRobert Watson 3680f7b951a8SRobert Watson error = mac_check_structmac_consistent(&mac); 3681f7b951a8SRobert Watson if (error) 3682f7b951a8SRobert Watson return (error); 3683f7b951a8SRobert Watson 3684f7b951a8SRobert Watson tproc = pfind(uap->pid); 3685f7b951a8SRobert Watson if (tproc == NULL) 3686f7b951a8SRobert Watson return (ESRCH); 3687f7b951a8SRobert Watson 3688f7b951a8SRobert Watson tcred = NULL; /* Satisfy gcc. */ 3689f7b951a8SRobert Watson error = p_cansee(td, tproc); 3690f7b951a8SRobert Watson if (error == 0) 3691f7b951a8SRobert Watson tcred = crhold(tproc->p_ucred); 3692f7b951a8SRobert Watson PROC_UNLOCK(tproc); 3693f7b951a8SRobert Watson if (error) 3694f7b951a8SRobert Watson return (error); 3695f7b951a8SRobert Watson 3696f7b951a8SRobert Watson elements = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK); 3697f7b951a8SRobert Watson 3698f7b951a8SRobert Watson error = copyinstr(mac.m_string, elements, mac.m_buflen, NULL); 3699f7b951a8SRobert Watson if (error) { 3700f7b951a8SRobert Watson free(elements, M_MACTEMP); 3701f7b951a8SRobert Watson crfree(tcred); 3702f7b951a8SRobert Watson return (error); 3703f7b951a8SRobert Watson } 3704f7b951a8SRobert Watson 3705f7b951a8SRobert Watson buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK | M_ZERO); 3706f7b951a8SRobert Watson 3707f7b951a8SRobert Watson error = mac_externalize_cred_label(&tcred->cr_label, elements, 3708f7b951a8SRobert Watson buffer, mac.m_buflen, M_WAITOK); 3709f7b951a8SRobert Watson if (error == 0) 3710f7b951a8SRobert Watson error = copyout(buffer, mac.m_string, strlen(buffer)+1); 3711f7b951a8SRobert Watson 3712f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3713f7b951a8SRobert Watson free(elements, M_MACTEMP); 3714f7b951a8SRobert Watson crfree(tcred); 3715f7b951a8SRobert Watson return (error); 3716f7b951a8SRobert Watson } 3717f7b951a8SRobert Watson 371895fab37eSRobert Watson /* 371995fab37eSRobert Watson * MPSAFE 372095fab37eSRobert Watson */ 372195fab37eSRobert Watson int 372295fab37eSRobert Watson __mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 372395fab37eSRobert Watson { 3724f7b951a8SRobert Watson char *elements, *buffer; 3725f7b951a8SRobert Watson struct mac mac; 372695fab37eSRobert Watson int error; 372795fab37eSRobert Watson 3728f7b951a8SRobert Watson error = copyin(uap->mac_p, &mac, sizeof(mac)); 3729f7b951a8SRobert Watson if (error) 3730f7b951a8SRobert Watson return (error); 373195fab37eSRobert Watson 3732f7b951a8SRobert Watson error = mac_check_structmac_consistent(&mac); 3733f7b951a8SRobert Watson if (error) 3734f7b951a8SRobert Watson return (error); 3735f7b951a8SRobert Watson 3736f7b951a8SRobert Watson elements = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK); 3737f7b951a8SRobert Watson 3738f7b951a8SRobert Watson error = copyinstr(mac.m_string, elements, mac.m_buflen, NULL); 3739f7b951a8SRobert Watson if (error) { 3740f7b951a8SRobert Watson free(elements, M_MACTEMP); 3741f7b951a8SRobert Watson return (error); 3742f7b951a8SRobert Watson } 3743f7b951a8SRobert Watson 3744f7b951a8SRobert Watson buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK | M_ZERO); 3745f7b951a8SRobert Watson 3746f7b951a8SRobert Watson error = mac_externalize_cred_label(&td->td_ucred->cr_label, 3747f7b951a8SRobert Watson elements, buffer, mac.m_buflen, M_WAITOK); 3748f7b951a8SRobert Watson if (error == 0) 3749f7b951a8SRobert Watson error = copyout(buffer, mac.m_string, strlen(buffer)+1); 3750f7b951a8SRobert Watson 3751f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3752f7b951a8SRobert Watson free(elements, M_MACTEMP); 375395fab37eSRobert Watson return (error); 375495fab37eSRobert Watson } 375595fab37eSRobert Watson 375695fab37eSRobert Watson /* 375795fab37eSRobert Watson * MPSAFE 375895fab37eSRobert Watson */ 375995fab37eSRobert Watson int 376095fab37eSRobert Watson __mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 376195fab37eSRobert Watson { 376295fab37eSRobert Watson struct ucred *newcred, *oldcred; 376395fab37eSRobert Watson struct label intlabel; 3764f7b951a8SRobert Watson struct proc *p; 3765f7b951a8SRobert Watson struct mac mac; 3766f7b951a8SRobert Watson char *buffer; 376795fab37eSRobert Watson int error; 376895fab37eSRobert Watson 3769f7b951a8SRobert Watson error = copyin(uap->mac_p, &mac, sizeof(mac)); 377095fab37eSRobert Watson if (error) 377195fab37eSRobert Watson return (error); 377295fab37eSRobert Watson 3773f7b951a8SRobert Watson error = mac_check_structmac_consistent(&mac); 377495fab37eSRobert Watson if (error) 377595fab37eSRobert Watson return (error); 377695fab37eSRobert Watson 3777f7b951a8SRobert Watson buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK); 3778f7b951a8SRobert Watson 3779f7b951a8SRobert Watson error = copyinstr(mac.m_string, buffer, mac.m_buflen, NULL); 3780f7b951a8SRobert Watson if (error) { 3781f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3782f7b951a8SRobert Watson return (error); 3783f7b951a8SRobert Watson } 3784f7b951a8SRobert Watson 3785f7b951a8SRobert Watson mac_init_cred_label(&intlabel); 3786f7b951a8SRobert Watson error = mac_internalize_cred_label(&intlabel, buffer); 3787f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3788f7b951a8SRobert Watson if (error) { 3789f7b951a8SRobert Watson mac_destroy_cred_label(&intlabel); 3790f7b951a8SRobert Watson return (error); 3791f7b951a8SRobert Watson } 3792f7b951a8SRobert Watson 379395fab37eSRobert Watson newcred = crget(); 379495fab37eSRobert Watson 379595fab37eSRobert Watson p = td->td_proc; 379695fab37eSRobert Watson PROC_LOCK(p); 379795fab37eSRobert Watson oldcred = p->p_ucred; 379895fab37eSRobert Watson 379995fab37eSRobert Watson error = mac_check_cred_relabel(oldcred, &intlabel); 380095fab37eSRobert Watson if (error) { 380195fab37eSRobert Watson PROC_UNLOCK(p); 380295fab37eSRobert Watson crfree(newcred); 3803f7b951a8SRobert Watson goto out; 380495fab37eSRobert Watson } 380595fab37eSRobert Watson 380695fab37eSRobert Watson setsugid(p); 380795fab37eSRobert Watson crcopy(newcred, oldcred); 380895fab37eSRobert Watson mac_relabel_cred(newcred, &intlabel); 380995fab37eSRobert Watson p->p_ucred = newcred; 3810e5cb5e37SRobert Watson 3811e5cb5e37SRobert Watson /* 3812e5cb5e37SRobert Watson * Grab additional reference for use while revoking mmaps, prior 3813e5cb5e37SRobert Watson * to releasing the proc lock and sharing the cred. 3814e5cb5e37SRobert Watson */ 3815e5cb5e37SRobert Watson crhold(newcred); 381695fab37eSRobert Watson PROC_UNLOCK(p); 3817e5cb5e37SRobert Watson 3818f7b951a8SRobert Watson if (mac_enforce_vm) { 381916140035SRobert Watson mtx_lock(&Giant); 3820e5cb5e37SRobert Watson mac_cred_mmapped_drop_perms(td, newcred); 382116140035SRobert Watson mtx_unlock(&Giant); 3822f7b951a8SRobert Watson } 3823e5cb5e37SRobert Watson 3824e5cb5e37SRobert Watson crfree(newcred); /* Free revocation reference. */ 382595fab37eSRobert Watson crfree(oldcred); 3826f7b951a8SRobert Watson 3827f7b951a8SRobert Watson out: 3828f7b951a8SRobert Watson mac_destroy_cred_label(&intlabel); 3829f7b951a8SRobert Watson return (error); 383095fab37eSRobert Watson } 383195fab37eSRobert Watson 383295fab37eSRobert Watson /* 383395fab37eSRobert Watson * MPSAFE 383495fab37eSRobert Watson */ 383595fab37eSRobert Watson int 383695fab37eSRobert Watson __mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 383795fab37eSRobert Watson { 3838f7b951a8SRobert Watson char *elements, *buffer; 3839f7b951a8SRobert Watson struct label intlabel; 384095fab37eSRobert Watson struct file *fp; 3841f7b951a8SRobert Watson struct mac mac; 384295fab37eSRobert Watson struct vnode *vp; 384395fab37eSRobert Watson struct pipe *pipe; 3844f7b951a8SRobert Watson short label_type; 384595fab37eSRobert Watson int error; 384695fab37eSRobert Watson 3847f7b951a8SRobert Watson error = copyin(uap->mac_p, &mac, sizeof(mac)); 3848f7b951a8SRobert Watson if (error) 3849f7b951a8SRobert Watson return (error); 385095fab37eSRobert Watson 3851f7b951a8SRobert Watson error = mac_check_structmac_consistent(&mac); 3852f7b951a8SRobert Watson if (error) 3853f7b951a8SRobert Watson return (error); 3854f7b951a8SRobert Watson 3855f7b951a8SRobert Watson elements = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK); 3856f7b951a8SRobert Watson 3857f7b951a8SRobert Watson error = copyinstr(mac.m_string, elements, mac.m_buflen, NULL); 3858f7b951a8SRobert Watson if (error) { 3859f7b951a8SRobert Watson free(elements, M_MACTEMP); 3860f7b951a8SRobert Watson return (error); 3861f7b951a8SRobert Watson } 3862f7b951a8SRobert Watson 3863f7b951a8SRobert Watson buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK | M_ZERO); 3864f7b951a8SRobert Watson 3865f7b951a8SRobert Watson mtx_lock(&Giant); /* VFS */ 386695fab37eSRobert Watson error = fget(td, SCARG(uap, fd), &fp); 386795fab37eSRobert Watson if (error) 386895fab37eSRobert Watson goto out; 386995fab37eSRobert Watson 3870f7b951a8SRobert Watson label_type = fp->f_type; 387195fab37eSRobert Watson switch (fp->f_type) { 387295fab37eSRobert Watson case DTYPE_FIFO: 387395fab37eSRobert Watson case DTYPE_VNODE: 387495fab37eSRobert Watson vp = (struct vnode *)fp->f_data; 387595fab37eSRobert Watson 3876f7b951a8SRobert Watson mac_init_vnode_label(&intlabel); 3877f7b951a8SRobert Watson 387895fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 387995fab37eSRobert Watson error = vn_refreshlabel(vp, td->td_ucred); 388095fab37eSRobert Watson if (error == 0) 3881f7b951a8SRobert Watson mac_copy_vnode_label(&vp->v_label, &intlabel); 388295fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 3883f7b951a8SRobert Watson 388495fab37eSRobert Watson break; 388595fab37eSRobert Watson case DTYPE_PIPE: 388695fab37eSRobert Watson pipe = (struct pipe *)fp->f_data; 3887f7b951a8SRobert Watson 3888f7b951a8SRobert Watson mac_init_pipe_label(&intlabel); 3889f7b951a8SRobert Watson 3890f7b951a8SRobert Watson PIPE_LOCK(pipe); 3891f7b951a8SRobert Watson mac_copy_pipe_label(pipe->pipe_label, &intlabel); 3892f7b951a8SRobert Watson PIPE_UNLOCK(pipe); 389395fab37eSRobert Watson break; 389495fab37eSRobert Watson default: 389595fab37eSRobert Watson error = EINVAL; 3896f7b951a8SRobert Watson fdrop(fp, td); 3897f7b951a8SRobert Watson goto out; 3898f7b951a8SRobert Watson } 3899f7b951a8SRobert Watson fdrop(fp, td); 3900f7b951a8SRobert Watson 3901f7b951a8SRobert Watson switch (label_type) { 3902f7b951a8SRobert Watson case DTYPE_FIFO: 3903f7b951a8SRobert Watson case DTYPE_VNODE: 3904f7b951a8SRobert Watson if (error == 0) 3905f7b951a8SRobert Watson error = mac_externalize_vnode_label(&intlabel, 3906f7b951a8SRobert Watson elements, buffer, mac.m_buflen, M_WAITOK); 3907f7b951a8SRobert Watson mac_destroy_vnode_label(&intlabel); 3908f7b951a8SRobert Watson break; 3909f7b951a8SRobert Watson case DTYPE_PIPE: 3910f7b951a8SRobert Watson error = mac_externalize_pipe_label(&intlabel, elements, 3911f7b951a8SRobert Watson buffer, mac.m_buflen, M_WAITOK); 3912f7b951a8SRobert Watson mac_destroy_pipe_label(&intlabel); 3913f7b951a8SRobert Watson break; 3914f7b951a8SRobert Watson default: 3915f7b951a8SRobert Watson panic("__mac_get_fd: corrupted label_type"); 391695fab37eSRobert Watson } 391795fab37eSRobert Watson 391895fab37eSRobert Watson if (error == 0) 3919f7b951a8SRobert Watson error = copyout(buffer, mac.m_string, strlen(buffer)+1); 392095fab37eSRobert Watson 392195fab37eSRobert Watson out: 3922f7b951a8SRobert Watson mtx_unlock(&Giant); /* VFS */ 3923f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3924f7b951a8SRobert Watson free(elements, M_MACTEMP); 3925f7b951a8SRobert Watson 392695fab37eSRobert Watson return (error); 392795fab37eSRobert Watson } 392895fab37eSRobert Watson 392995fab37eSRobert Watson /* 393095fab37eSRobert Watson * MPSAFE 393195fab37eSRobert Watson */ 393295fab37eSRobert Watson int 393395fab37eSRobert Watson __mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 393495fab37eSRobert Watson { 3935f7b951a8SRobert Watson char *elements, *buffer; 393695fab37eSRobert Watson struct nameidata nd; 3937f7b951a8SRobert Watson struct label intlabel; 3938f7b951a8SRobert Watson struct mac mac; 393995fab37eSRobert Watson int error; 394095fab37eSRobert Watson 3941f7b951a8SRobert Watson error = copyin(uap->mac_p, &mac, sizeof(mac)); 3942f7b951a8SRobert Watson if (error) 3943f7b951a8SRobert Watson return (error); 3944f7b951a8SRobert Watson 3945f7b951a8SRobert Watson error = mac_check_structmac_consistent(&mac); 3946f7b951a8SRobert Watson if (error) 3947f7b951a8SRobert Watson return (error); 3948f7b951a8SRobert Watson 3949f7b951a8SRobert Watson elements = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK); 3950f7b951a8SRobert Watson 3951f7b951a8SRobert Watson error = copyinstr(mac.m_string, elements, mac.m_buflen, NULL); 3952f7b951a8SRobert Watson if (error) { 3953f7b951a8SRobert Watson free(elements, M_MACTEMP); 3954f7b951a8SRobert Watson return (error); 3955f7b951a8SRobert Watson } 3956f7b951a8SRobert Watson 3957f7b951a8SRobert Watson buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK | M_ZERO); 3958f7b951a8SRobert Watson 3959f7b951a8SRobert Watson mtx_lock(&Giant); /* VFS */ 3960f7b951a8SRobert Watson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, uap->path_p, 3961f7b951a8SRobert Watson td); 396295fab37eSRobert Watson error = namei(&nd); 396395fab37eSRobert Watson if (error) 396495fab37eSRobert Watson goto out; 396595fab37eSRobert Watson 3966f7b951a8SRobert Watson mac_init_vnode_label(&intlabel); 396795fab37eSRobert Watson error = vn_refreshlabel(nd.ni_vp, td->td_ucred); 396895fab37eSRobert Watson if (error == 0) 3969f7b951a8SRobert Watson mac_copy_vnode_label(&nd.ni_vp->v_label, &intlabel); 3970f7b951a8SRobert Watson if (error == 0) 3971f7b951a8SRobert Watson error = mac_externalize_vnode_label(&intlabel, elements, 3972f7b951a8SRobert Watson buffer, mac.m_buflen, M_WAITOK); 3973f7b951a8SRobert Watson 397495fab37eSRobert Watson NDFREE(&nd, 0); 3975f7b951a8SRobert Watson mac_destroy_vnode_label(&intlabel); 3976f7b951a8SRobert Watson 3977f7b951a8SRobert Watson if (error == 0) 3978f7b951a8SRobert Watson error = copyout(buffer, mac.m_string, strlen(buffer)+1); 3979f7b951a8SRobert Watson 3980f7b951a8SRobert Watson out: 3981f7b951a8SRobert Watson mtx_unlock(&Giant); /* VFS */ 3982f7b951a8SRobert Watson 3983f7b951a8SRobert Watson free(buffer, M_MACTEMP); 3984f7b951a8SRobert Watson free(elements, M_MACTEMP); 3985f7b951a8SRobert Watson 3986f7b951a8SRobert Watson return (error); 3987f7b951a8SRobert Watson } 3988f7b951a8SRobert Watson 3989f7b951a8SRobert Watson /* 3990f7b951a8SRobert Watson * MPSAFE 3991f7b951a8SRobert Watson */ 3992f7b951a8SRobert Watson int 3993f7b951a8SRobert Watson __mac_get_link(struct thread *td, struct __mac_get_link_args *uap) 3994f7b951a8SRobert Watson { 3995f7b951a8SRobert Watson char *elements, *buffer; 3996f7b951a8SRobert Watson struct nameidata nd; 3997f7b951a8SRobert Watson struct label intlabel; 3998f7b951a8SRobert Watson struct mac mac; 3999f7b951a8SRobert Watson int error; 4000f7b951a8SRobert Watson 4001f7b951a8SRobert Watson error = copyin(uap->mac_p, &mac, sizeof(mac)); 4002f7b951a8SRobert Watson if (error) 4003f7b951a8SRobert Watson return (error); 4004f7b951a8SRobert Watson 4005f7b951a8SRobert Watson error = mac_check_structmac_consistent(&mac); 4006f7b951a8SRobert Watson if (error) 4007f7b951a8SRobert Watson return (error); 4008f7b951a8SRobert Watson 4009f7b951a8SRobert Watson elements = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK); 4010f7b951a8SRobert Watson 4011f7b951a8SRobert Watson error = copyinstr(mac.m_string, elements, mac.m_buflen, NULL); 4012f7b951a8SRobert Watson if (error) { 4013f7b951a8SRobert Watson free(elements, M_MACTEMP); 4014f7b951a8SRobert Watson return (error); 4015f7b951a8SRobert Watson } 4016f7b951a8SRobert Watson 4017f7b951a8SRobert Watson buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK | M_ZERO); 4018f7b951a8SRobert Watson 4019f7b951a8SRobert Watson mtx_lock(&Giant); /* VFS */ 4020f7b951a8SRobert Watson NDINIT(&nd, LOOKUP, LOCKLEAF | NOFOLLOW, UIO_USERSPACE, uap->path_p, 4021f7b951a8SRobert Watson td); 4022f7b951a8SRobert Watson error = namei(&nd); 402395fab37eSRobert Watson if (error) 402495fab37eSRobert Watson goto out; 402595fab37eSRobert Watson 4026f7b951a8SRobert Watson mac_init_vnode_label(&intlabel); 4027f7b951a8SRobert Watson error = vn_refreshlabel(nd.ni_vp, td->td_ucred); 4028f7b951a8SRobert Watson if (error == 0) 4029f7b951a8SRobert Watson mac_copy_vnode_label(&nd.ni_vp->v_label, &intlabel); 4030f7b951a8SRobert Watson if (error == 0) 4031f7b951a8SRobert Watson error = mac_externalize_vnode_label(&intlabel, elements, 4032f7b951a8SRobert Watson buffer, mac.m_buflen, M_WAITOK); 4033f7b951a8SRobert Watson NDFREE(&nd, 0); 4034f7b951a8SRobert Watson mac_destroy_vnode_label(&intlabel); 4035f7b951a8SRobert Watson 4036f7b951a8SRobert Watson if (error == 0) 4037f7b951a8SRobert Watson error = copyout(buffer, mac.m_string, strlen(buffer)+1); 403895fab37eSRobert Watson 403995fab37eSRobert Watson out: 4040f7b951a8SRobert Watson mtx_unlock(&Giant); /* VFS */ 4041f7b951a8SRobert Watson 4042f7b951a8SRobert Watson free(buffer, M_MACTEMP); 4043f7b951a8SRobert Watson free(elements, M_MACTEMP); 4044f7b951a8SRobert Watson 404595fab37eSRobert Watson return (error); 404695fab37eSRobert Watson } 404795fab37eSRobert Watson 404895fab37eSRobert Watson /* 404995fab37eSRobert Watson * MPSAFE 405095fab37eSRobert Watson */ 405195fab37eSRobert Watson int 405295fab37eSRobert Watson __mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 405395fab37eSRobert Watson { 405495fab37eSRobert Watson struct label intlabel; 4055f7b951a8SRobert Watson struct pipe *pipe; 4056f7b951a8SRobert Watson struct file *fp; 405795fab37eSRobert Watson struct mount *mp; 405895fab37eSRobert Watson struct vnode *vp; 4059f7b951a8SRobert Watson struct mac mac; 4060f7b951a8SRobert Watson char *buffer; 406195fab37eSRobert Watson int error; 406295fab37eSRobert Watson 4063f7b951a8SRobert Watson error = copyin(uap->mac_p, &mac, sizeof(mac)); 4064f7b951a8SRobert Watson if (error) 4065f7b951a8SRobert Watson return (error); 4066f7b951a8SRobert Watson 4067f7b951a8SRobert Watson error = mac_check_structmac_consistent(&mac); 4068f7b951a8SRobert Watson if (error) 4069f7b951a8SRobert Watson return (error); 4070f7b951a8SRobert Watson 4071f7b951a8SRobert Watson buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK); 4072f7b951a8SRobert Watson 4073f7b951a8SRobert Watson error = copyinstr(mac.m_string, buffer, mac.m_buflen, NULL); 4074f7b951a8SRobert Watson if (error) { 4075f7b951a8SRobert Watson free(buffer, M_MACTEMP); 4076f7b951a8SRobert Watson return (error); 4077f7b951a8SRobert Watson } 4078f7b951a8SRobert Watson 4079f7b951a8SRobert Watson mtx_lock(&Giant); /* VFS */ 4080f7b951a8SRobert Watson 408195fab37eSRobert Watson error = fget(td, SCARG(uap, fd), &fp); 408295fab37eSRobert Watson if (error) 4083f7b951a8SRobert Watson goto out; 408495fab37eSRobert Watson 408595fab37eSRobert Watson switch (fp->f_type) { 408695fab37eSRobert Watson case DTYPE_FIFO: 408795fab37eSRobert Watson case DTYPE_VNODE: 4088f7b951a8SRobert Watson mac_init_vnode_label(&intlabel); 4089f7b951a8SRobert Watson error = mac_internalize_vnode_label(&intlabel, buffer); 4090f7b951a8SRobert Watson if (error) { 4091f7b951a8SRobert Watson mac_destroy_vnode_label(&intlabel); 4092f7b951a8SRobert Watson break; 4093f7b951a8SRobert Watson } 4094f7b951a8SRobert Watson 409595fab37eSRobert Watson vp = (struct vnode *)fp->f_data; 409695fab37eSRobert Watson error = vn_start_write(vp, &mp, V_WAIT | PCATCH); 4097f7b951a8SRobert Watson if (error != 0) { 4098f7b951a8SRobert Watson mac_destroy_vnode_label(&intlabel); 409995fab37eSRobert Watson break; 4100f7b951a8SRobert Watson } 410195fab37eSRobert Watson 410295fab37eSRobert Watson vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 410395fab37eSRobert Watson error = vn_setlabel(vp, &intlabel, td->td_ucred); 410495fab37eSRobert Watson VOP_UNLOCK(vp, 0, td); 410595fab37eSRobert Watson vn_finished_write(mp); 4106f7b951a8SRobert Watson 4107f7b951a8SRobert Watson mac_destroy_vnode_label(&intlabel); 410895fab37eSRobert Watson break; 4109f7b951a8SRobert Watson 411095fab37eSRobert Watson case DTYPE_PIPE: 4111f7b951a8SRobert Watson mac_init_pipe_label(&intlabel); 4112f7b951a8SRobert Watson error = mac_internalize_pipe_label(&intlabel, buffer); 4113f7b951a8SRobert Watson if (error == 0) { 411495fab37eSRobert Watson pipe = (struct pipe *)fp->f_data; 41151aa37f53SRobert Watson PIPE_LOCK(pipe); 4116f7b951a8SRobert Watson error = mac_pipe_label_set(td->td_ucred, pipe, 4117f7b951a8SRobert Watson &intlabel); 41181aa37f53SRobert Watson PIPE_UNLOCK(pipe); 4119f7b951a8SRobert Watson } 4120f7b951a8SRobert Watson 4121f7b951a8SRobert Watson mac_destroy_pipe_label(&intlabel); 412295fab37eSRobert Watson break; 4123f7b951a8SRobert Watson 412495fab37eSRobert Watson default: 412595fab37eSRobert Watson error = EINVAL; 412695fab37eSRobert Watson } 412795fab37eSRobert Watson 412895fab37eSRobert Watson fdrop(fp, td); 4129f7b951a8SRobert Watson out: 4130f7b951a8SRobert Watson mtx_unlock(&Giant); /* VFS */ 4131f7b951a8SRobert Watson 4132f7b951a8SRobert Watson free(buffer, M_MACTEMP); 4133f7b951a8SRobert Watson 413495fab37eSRobert Watson return (error); 413595fab37eSRobert Watson } 413695fab37eSRobert Watson 413795fab37eSRobert Watson /* 413895fab37eSRobert Watson * MPSAFE 413995fab37eSRobert Watson */ 414095fab37eSRobert Watson int 414195fab37eSRobert Watson __mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 414295fab37eSRobert Watson { 414395fab37eSRobert Watson struct label intlabel; 4144f7b951a8SRobert Watson struct nameidata nd; 414595fab37eSRobert Watson struct mount *mp; 4146f7b951a8SRobert Watson struct mac mac; 4147f7b951a8SRobert Watson char *buffer; 414895fab37eSRobert Watson int error; 414995fab37eSRobert Watson 4150f7b951a8SRobert Watson error = copyin(uap->mac_p, &mac, sizeof(mac)); 415195fab37eSRobert Watson if (error) 4152f7b951a8SRobert Watson return (error); 415395fab37eSRobert Watson 4154f7b951a8SRobert Watson error = mac_check_structmac_consistent(&mac); 415595fab37eSRobert Watson if (error) 4156f7b951a8SRobert Watson return (error); 415795fab37eSRobert Watson 4158f7b951a8SRobert Watson buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK); 415995fab37eSRobert Watson 4160f7b951a8SRobert Watson error = copyinstr(mac.m_string, buffer, mac.m_buflen, NULL); 4161f7b951a8SRobert Watson if (error) { 4162f7b951a8SRobert Watson free(buffer, M_MACTEMP); 416395fab37eSRobert Watson return (error); 416495fab37eSRobert Watson } 416595fab37eSRobert Watson 4166f7b951a8SRobert Watson mac_init_vnode_label(&intlabel); 4167f7b951a8SRobert Watson error = mac_internalize_vnode_label(&intlabel, buffer); 4168f7b951a8SRobert Watson free(buffer, M_MACTEMP); 4169f7b951a8SRobert Watson if (error) { 4170f7b951a8SRobert Watson mac_destroy_vnode_label(&intlabel); 4171f7b951a8SRobert Watson return (error); 4172f7b951a8SRobert Watson } 4173f7b951a8SRobert Watson 4174f7b951a8SRobert Watson mtx_lock(&Giant); /* VFS */ 4175f7b951a8SRobert Watson 4176f7b951a8SRobert Watson NDINIT(&nd, LOOKUP, LOCKLEAF | FOLLOW, UIO_USERSPACE, uap->path_p, 4177f7b951a8SRobert Watson td); 4178f7b951a8SRobert Watson error = namei(&nd); 4179f7b951a8SRobert Watson if (error == 0) { 4180f7b951a8SRobert Watson error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH); 4181f7b951a8SRobert Watson if (error == 0) 4182f7b951a8SRobert Watson error = vn_setlabel(nd.ni_vp, &intlabel, 4183f7b951a8SRobert Watson td->td_ucred); 4184f7b951a8SRobert Watson vn_finished_write(mp); 4185f7b951a8SRobert Watson } 4186f7b951a8SRobert Watson 4187f7b951a8SRobert Watson NDFREE(&nd, 0); 4188f7b951a8SRobert Watson mtx_unlock(&Giant); /* VFS */ 4189f7b951a8SRobert Watson mac_destroy_vnode_label(&intlabel); 4190f7b951a8SRobert Watson 4191f7b951a8SRobert Watson return (error); 4192f7b951a8SRobert Watson } 4193f7b951a8SRobert Watson 4194f7b951a8SRobert Watson /* 4195f7b951a8SRobert Watson * MPSAFE 4196f7b951a8SRobert Watson */ 4197f7b951a8SRobert Watson int 4198f7b951a8SRobert Watson __mac_set_link(struct thread *td, struct __mac_set_link_args *uap) 4199f7b951a8SRobert Watson { 4200f7b951a8SRobert Watson struct label intlabel; 4201f7b951a8SRobert Watson struct nameidata nd; 4202f7b951a8SRobert Watson struct mount *mp; 4203f7b951a8SRobert Watson struct mac mac; 4204f7b951a8SRobert Watson char *buffer; 4205f7b951a8SRobert Watson int error; 4206f7b951a8SRobert Watson 4207f7b951a8SRobert Watson error = copyin(uap->mac_p, &mac, sizeof(mac)); 4208f7b951a8SRobert Watson if (error) 4209f7b951a8SRobert Watson return (error); 4210f7b951a8SRobert Watson 4211f7b951a8SRobert Watson error = mac_check_structmac_consistent(&mac); 4212f7b951a8SRobert Watson if (error) 4213f7b951a8SRobert Watson return (error); 4214f7b951a8SRobert Watson 4215f7b951a8SRobert Watson buffer = malloc(mac.m_buflen, M_MACTEMP, M_WAITOK); 4216f7b951a8SRobert Watson 4217f7b951a8SRobert Watson error = copyinstr(mac.m_string, buffer, mac.m_buflen, NULL); 4218f7b951a8SRobert Watson if (error) { 4219f7b951a8SRobert Watson free(buffer, M_MACTEMP); 4220f7b951a8SRobert Watson return (error); 4221f7b951a8SRobert Watson } 4222f7b951a8SRobert Watson 4223f7b951a8SRobert Watson mac_init_vnode_label(&intlabel); 4224f7b951a8SRobert Watson error = mac_internalize_vnode_label(&intlabel, buffer); 4225f7b951a8SRobert Watson free(buffer, M_MACTEMP); 4226f7b951a8SRobert Watson if (error) { 4227f7b951a8SRobert Watson mac_destroy_vnode_label(&intlabel); 4228f7b951a8SRobert Watson return (error); 4229f7b951a8SRobert Watson } 4230f7b951a8SRobert Watson 4231f7b951a8SRobert Watson mtx_lock(&Giant); /* VFS */ 4232f7b951a8SRobert Watson 4233f7b951a8SRobert Watson NDINIT(&nd, LOOKUP, LOCKLEAF | NOFOLLOW, UIO_USERSPACE, uap->path_p, 4234f7b951a8SRobert Watson td); 4235f7b951a8SRobert Watson error = namei(&nd); 4236f7b951a8SRobert Watson if (error == 0) { 4237f7b951a8SRobert Watson error = vn_start_write(nd.ni_vp, &mp, V_WAIT | PCATCH); 4238f7b951a8SRobert Watson if (error == 0) 4239f7b951a8SRobert Watson error = vn_setlabel(nd.ni_vp, &intlabel, 4240f7b951a8SRobert Watson td->td_ucred); 4241f7b951a8SRobert Watson vn_finished_write(mp); 4242f7b951a8SRobert Watson } 4243f7b951a8SRobert Watson 4244f7b951a8SRobert Watson NDFREE(&nd, 0); 4245f7b951a8SRobert Watson mtx_unlock(&Giant); /* VFS */ 4246f7b951a8SRobert Watson mac_destroy_vnode_label(&intlabel); 4247f7b951a8SRobert Watson 4248f7b951a8SRobert Watson return (error); 4249f7b951a8SRobert Watson } 4250f7b951a8SRobert Watson 4251f7b951a8SRobert Watson /* 4252f7b951a8SRobert Watson * MPSAFE 4253f7b951a8SRobert Watson */ 425427f2eac7SRobert Watson int 425527f2eac7SRobert Watson mac_syscall(struct thread *td, struct mac_syscall_args *uap) 425627f2eac7SRobert Watson { 425727f2eac7SRobert Watson struct mac_policy_conf *mpc; 425827f2eac7SRobert Watson char target[MAC_MAX_POLICY_NAME]; 425927f2eac7SRobert Watson int error; 426027f2eac7SRobert Watson 426127f2eac7SRobert Watson error = copyinstr(SCARG(uap, policy), target, sizeof(target), NULL); 426227f2eac7SRobert Watson if (error) 426327f2eac7SRobert Watson return (error); 426427f2eac7SRobert Watson 426527f2eac7SRobert Watson error = ENOSYS; 426627f2eac7SRobert Watson MAC_POLICY_LIST_BUSY(); 426727f2eac7SRobert Watson LIST_FOREACH(mpc, &mac_policy_list, mpc_list) { 426827f2eac7SRobert Watson if (strcmp(mpc->mpc_name, target) == 0 && 426927f2eac7SRobert Watson mpc->mpc_ops->mpo_syscall != NULL) { 427027f2eac7SRobert Watson error = mpc->mpc_ops->mpo_syscall(td, 427127f2eac7SRobert Watson SCARG(uap, call), SCARG(uap, arg)); 427227f2eac7SRobert Watson goto out; 427327f2eac7SRobert Watson } 427427f2eac7SRobert Watson } 427527f2eac7SRobert Watson 427627f2eac7SRobert Watson out: 427727f2eac7SRobert Watson MAC_POLICY_LIST_UNBUSY(); 427827f2eac7SRobert Watson return (error); 427927f2eac7SRobert Watson } 428027f2eac7SRobert Watson 428195fab37eSRobert Watson SYSINIT(mac, SI_SUB_MAC, SI_ORDER_FIRST, mac_init, NULL); 428295fab37eSRobert Watson SYSINIT(mac_late, SI_SUB_MAC_LATE, SI_ORDER_FIRST, mac_late_init, NULL); 428395fab37eSRobert Watson 428495fab37eSRobert Watson #else /* !MAC */ 42857bc82500SRobert Watson 42867bc82500SRobert Watson int 4287f7b951a8SRobert Watson __mac_get_pid(struct thread *td, struct __mac_get_pid_args *uap) 4288f7b951a8SRobert Watson { 4289f7b951a8SRobert Watson 4290f7b951a8SRobert Watson return (ENOSYS); 4291f7b951a8SRobert Watson } 4292f7b951a8SRobert Watson 4293f7b951a8SRobert Watson int 42947bc82500SRobert Watson __mac_get_proc(struct thread *td, struct __mac_get_proc_args *uap) 42957bc82500SRobert Watson { 42967bc82500SRobert Watson 42977bc82500SRobert Watson return (ENOSYS); 42987bc82500SRobert Watson } 42997bc82500SRobert Watson 43007bc82500SRobert Watson int 43017bc82500SRobert Watson __mac_set_proc(struct thread *td, struct __mac_set_proc_args *uap) 43027bc82500SRobert Watson { 43037bc82500SRobert Watson 43047bc82500SRobert Watson return (ENOSYS); 43057bc82500SRobert Watson } 43067bc82500SRobert Watson 43077bc82500SRobert Watson int 43087bc82500SRobert Watson __mac_get_fd(struct thread *td, struct __mac_get_fd_args *uap) 43097bc82500SRobert Watson { 43107bc82500SRobert Watson 43117bc82500SRobert Watson return (ENOSYS); 43127bc82500SRobert Watson } 43137bc82500SRobert Watson 43147bc82500SRobert Watson int 43157bc82500SRobert Watson __mac_get_file(struct thread *td, struct __mac_get_file_args *uap) 43167bc82500SRobert Watson { 43177bc82500SRobert Watson 43187bc82500SRobert Watson return (ENOSYS); 43197bc82500SRobert Watson } 43207bc82500SRobert Watson 43217bc82500SRobert Watson int 4322f7b951a8SRobert Watson __mac_get_link(struct thread *td, struct __mac_get_link_args *uap) 4323f7b951a8SRobert Watson { 4324f7b951a8SRobert Watson 4325f7b951a8SRobert Watson return (ENOSYS); 4326f7b951a8SRobert Watson } 4327f7b951a8SRobert Watson 4328f7b951a8SRobert Watson int 43297bc82500SRobert Watson __mac_set_fd(struct thread *td, struct __mac_set_fd_args *uap) 43307bc82500SRobert Watson { 43317bc82500SRobert Watson 43327bc82500SRobert Watson return (ENOSYS); 43337bc82500SRobert Watson } 43347bc82500SRobert Watson 43357bc82500SRobert Watson int 43367bc82500SRobert Watson __mac_set_file(struct thread *td, struct __mac_set_file_args *uap) 43377bc82500SRobert Watson { 43387bc82500SRobert Watson 43397bc82500SRobert Watson return (ENOSYS); 43407bc82500SRobert Watson } 434195fab37eSRobert Watson 434227f2eac7SRobert Watson int 4343f7b951a8SRobert Watson __mac_set_link(struct thread *td, struct __mac_set_link_args *uap) 4344f7b951a8SRobert Watson { 4345f7b951a8SRobert Watson 4346f7b951a8SRobert Watson return (ENOSYS); 4347f7b951a8SRobert Watson } 4348f7b951a8SRobert Watson 4349f7b951a8SRobert Watson int 435027f2eac7SRobert Watson mac_syscall(struct thread *td, struct mac_syscall_args *uap) 435127f2eac7SRobert Watson { 435227f2eac7SRobert Watson 435327f2eac7SRobert Watson return (ENOSYS); 435427f2eac7SRobert Watson } 435527f2eac7SRobert Watson 4356f7b951a8SRobert Watson #endif 4357