1/*-
2 * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
3 * Copyright (c) 2001 Ilmar S. Habibulin
4 * Copyright (c) 2001, 2002 Networks Associates Technology, Inc.
5 * All rights reserved.
6 *
7 * This software was developed by Robert Watson and Ilmar Habibulin for the
8 * TrustedBSD Project.
--- 22 unchanged lines hidden (view full) ---
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 * $FreeBSD: head/sys/security/mac/mac_internal.h 104520 2002-10-05 16:46:03Z rwatson $
40 */
41/*
42 * Developed by the TrustedBSD Project.
43 *
44 * Framework for extensible kernel access control. Kernel and userland
45 * interface to the framework, policy registration and composition.
46 */
47
--- 963 unchanged lines hidden (view full) ---
1011 return (EPERM);
1012
1013 /* Precedence goes to error over success; otherwise, arbitrary. */
1014 if (error1 != 0)
1015 return (error1);
1016 return (error2);
1017}
1018
1019void
1020mac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp)
1021{
1022
1023 MAC_PERFORM(update_devfsdirent, de, &de->de_label, vp, &vp->v_label);
1024}
1025
1026void
1027mac_update_procfsvnode(struct vnode *vp, struct ucred *cred)
--- 268 unchanged lines hidden (view full) ---
1296 return (error);
1297
1298 result = 0;
1299 MAC_BOOLEAN(execve_will_transition, ||, old, vp, &vp->v_label);
1300
1301 return (result);
1302}
1303
1304static void
1305mac_init_label(struct label *label)
1306{
1307
1308 bzero(label, sizeof(*label));
1309 label->l_flags = MAC_FLAG_INITIALIZED;
1310}
1311
1312static void
1313mac_init_structmac(struct mac *mac)
1314{
1315
1316 bzero(mac, sizeof(*mac));
1317 mac->m_macflags = MAC_FLAG_INITIALIZED;
1318}
1319
1320static void
1321mac_destroy_label(struct label *label)
1322{
1323
1324 KASSERT(label->l_flags & MAC_FLAG_INITIALIZED,
1325 ("destroying uninitialized label"));
1326
1327 bzero(label, sizeof(*label));
1328 /* implicit: label->l_flags &= ~MAC_FLAG_INITIALIZED; */
1329}
1330
1331int
1332mac_init_mbuf(struct mbuf *m, int how)
1333{
1334 KASSERT(m->m_flags & M_PKTHDR, ("mac_init_mbuf on non-header mbuf"));
1335
1336 /* "how" is one of M_(TRY|DONT)WAIT */
1337 mac_init_label(&m->m_pkthdr.label);
1338 MAC_PERFORM(init_mbuf_label, &m->m_pkthdr.label, how);
1339#ifdef MAC_DEBUG
1340 atomic_add_int(&nmacmbufs, 1);
1341#endif
1342 return (0);
1343}
1344
1345void
1346mac_destroy_mbuf(struct mbuf *m)
1347{
1348
1349 MAC_PERFORM(destroy_mbuf_label, &m->m_pkthdr.label);
1350 mac_destroy_label(&m->m_pkthdr.label);
1351#ifdef MAC_DEBUG
1352 atomic_subtract_int(&nmacmbufs, 1);
1353#endif
1354}
1355
1356void
1357mac_init_cred(struct ucred *cr)
1358{
1359
1360 mac_init_label(&cr->cr_label);
1361 MAC_PERFORM(init_cred_label, &cr->cr_label);
1362#ifdef MAC_DEBUG
1363 atomic_add_int(&nmaccreds, 1);
1364#endif
1365}
1366
1367void
1368mac_destroy_cred(struct ucred *cr)
1369{
1370
1371 MAC_PERFORM(destroy_cred_label, &cr->cr_label);
1372 mac_destroy_label(&cr->cr_label);
1373#ifdef MAC_DEBUG
1374 atomic_subtract_int(&nmaccreds, 1);
1375#endif
1376}
1377
1378void
1379mac_init_ifnet(struct ifnet *ifp)
1380{
1381
1382 mac_init_label(&ifp->if_label);
1383 MAC_PERFORM(init_ifnet_label, &ifp->if_label);
1384#ifdef MAC_DEBUG
1385 atomic_add_int(&nmacifnets, 1);
1386#endif
1387}
1388
1389void
1390mac_destroy_ifnet(struct ifnet *ifp)
1391{
1392
1393 MAC_PERFORM(destroy_ifnet_label, &ifp->if_label);
1394 mac_destroy_label(&ifp->if_label);
1395#ifdef MAC_DEBUG
1396 atomic_subtract_int(&nmacifnets, 1);
1397#endif
1398}
1399
1400void
1401mac_init_ipq(struct ipq *ipq)
1402{
1403
1404 mac_init_label(&ipq->ipq_label);
1405 MAC_PERFORM(init_ipq_label, &ipq->ipq_label);
1406#ifdef MAC_DEBUG
1407 atomic_add_int(&nmacipqs, 1);
1408#endif
1409}
1410
1411void
1412mac_destroy_ipq(struct ipq *ipq)
1413{
1414
1415 MAC_PERFORM(destroy_ipq_label, &ipq->ipq_label);
1416 mac_destroy_label(&ipq->ipq_label);
1417#ifdef MAC_DEBUG
1418 atomic_subtract_int(&nmacipqs, 1);
1419#endif
1420}
1421
1422void
1423mac_init_socket(struct socket *socket)
1424{
1425
1426 mac_init_label(&socket->so_label);
1427 mac_init_label(&socket->so_peerlabel);
1428 MAC_PERFORM(init_socket_label, &socket->so_label);
1429 MAC_PERFORM(init_socket_peer_label, &socket->so_peerlabel);
1430#ifdef MAC_DEBUG
1431 atomic_add_int(&nmacsockets, 1);
1432#endif
1433}
1434
1435void
1436mac_destroy_socket(struct socket *socket)
1437{
1438
1439 MAC_PERFORM(destroy_socket_label, &socket->so_label);
1440 MAC_PERFORM(destroy_socket_peer_label, &socket->so_peerlabel);
1441 mac_destroy_label(&socket->so_label);
1442 mac_destroy_label(&socket->so_peerlabel);
1443#ifdef MAC_DEBUG
1444 atomic_subtract_int(&nmacsockets, 1);
1445#endif
1446}
1447
1448void
1449mac_init_pipe(struct pipe *pipe)
1450{
1451 struct label *label;
1452
1453 label = malloc(sizeof(struct label), M_MACPIPELABEL, M_ZERO|M_WAITOK);
1454 mac_init_label(label);
1455 pipe->pipe_label = label;
1456 pipe->pipe_peer->pipe_label = label;
1457 MAC_PERFORM(init_pipe_label, pipe->pipe_label);
1458#ifdef MAC_DEBUG
1459 atomic_add_int(&nmacpipes, 1);
1460#endif
1461}
1462
1463void
1464mac_destroy_pipe(struct pipe *pipe)
1465{
1466
1467 MAC_PERFORM(destroy_pipe_label, pipe->pipe_label);
1468 mac_destroy_label(pipe->pipe_label);
1469 free(pipe->pipe_label, M_MACPIPELABEL);
1470#ifdef MAC_DEBUG
1471 atomic_subtract_int(&nmacpipes, 1);
1472#endif
1473}
1474
1475void
1476mac_init_bpfdesc(struct bpf_d *bpf_d)
1477{
1478
1479 mac_init_label(&bpf_d->bd_label);
1480 MAC_PERFORM(init_bpfdesc_label, &bpf_d->bd_label);
1481#ifdef MAC_DEBUG
1482 atomic_add_int(&nmacbpfdescs, 1);
1483#endif
1484}
1485
1486void
1487mac_destroy_bpfdesc(struct bpf_d *bpf_d)
1488{
1489
1490 MAC_PERFORM(destroy_bpfdesc_label, &bpf_d->bd_label);
1491 mac_destroy_label(&bpf_d->bd_label);
1492#ifdef MAC_DEBUG
1493 atomic_subtract_int(&nmacbpfdescs, 1);
1494#endif
1495}
1496
1497void
1498mac_init_mount(struct mount *mp)
1499{
1500
1501 mac_init_label(&mp->mnt_mntlabel);
1502 mac_init_label(&mp->mnt_fslabel);
1503 MAC_PERFORM(init_mount_label, &mp->mnt_mntlabel);
1504 MAC_PERFORM(init_mount_fs_label, &mp->mnt_fslabel);
1505#ifdef MAC_DEBUG
1506 atomic_add_int(&nmacmounts, 1);
1507#endif
1508}
1509
1510void
1511mac_destroy_mount(struct mount *mp)
1512{
1513
1514 MAC_PERFORM(destroy_mount_label, &mp->mnt_mntlabel);
1515 MAC_PERFORM(destroy_mount_fs_label, &mp->mnt_fslabel);
1516 mac_destroy_label(&mp->mnt_fslabel);
1517 mac_destroy_label(&mp->mnt_mntlabel);
1518#ifdef MAC_DEBUG
1519 atomic_subtract_int(&nmacmounts, 1);
1520#endif
1521}
1522
1523static void
1524mac_init_temp(struct label *label)
1525{
1526
1527 mac_init_label(label);
1528 MAC_PERFORM(init_temp_label, label);
1529#ifdef MAC_DEBUG
1530 atomic_add_int(&nmactemp, 1);
1531#endif
1532}
1533
1534static void
1535mac_destroy_temp(struct label *label)
1536{
1537
1538 MAC_PERFORM(destroy_temp_label, label);
1539 mac_destroy_label(label);
1540#ifdef MAC_DEBUG
1541 atomic_subtract_int(&nmactemp, 1);
1542#endif
1543}
1544
1545void
1546mac_init_vnode(struct vnode *vp)
1547{
1548
1549 mac_init_label(&vp->v_label);
1550 MAC_PERFORM(init_vnode_label, &vp->v_label);
1551#ifdef MAC_DEBUG
1552 atomic_add_int(&nmacvnodes, 1);
1553#endif
1554}
1555
1556void
1557mac_destroy_vnode(struct vnode *vp)
1558{
1559
1560 MAC_PERFORM(destroy_vnode_label, &vp->v_label);
1561 mac_destroy_label(&vp->v_label);
1562#ifdef MAC_DEBUG
1563 atomic_subtract_int(&nmacvnodes, 1);
1564#endif
1565}
1566
1567void
1568mac_init_devfsdirent(struct devfs_dirent *de)
1569{
1570
1571 mac_init_label(&de->de_label);
1572 MAC_PERFORM(init_devfsdirent_label, &de->de_label);
1573#ifdef MAC_DEBUG
1574 atomic_add_int(&nmacdevfsdirents, 1);
1575#endif
1576}
1577
1578void
1579mac_destroy_devfsdirent(struct devfs_dirent *de)
1580{
1581
1582 MAC_PERFORM(destroy_devfsdirent_label, &de->de_label);
1583 mac_destroy_label(&de->de_label);
1584#ifdef MAC_DEBUG
1585 atomic_subtract_int(&nmacdevfsdirents, 1);
1586#endif
1587}
1588
1589static int
1590mac_externalize(struct label *label, struct mac *mac)
1591{
1592 int error;
1593
1594 mac_init_structmac(mac);
1595 MAC_CHECK(externalize, label, mac);
1596
--- 1828 unchanged lines hidden ---
2 * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
3 * Copyright (c) 2001 Ilmar S. Habibulin
4 * Copyright (c) 2001, 2002 Networks Associates Technology, Inc.
5 * All rights reserved.
6 *
7 * This software was developed by Robert Watson and Ilmar Habibulin for the
8 * TrustedBSD Project.
--- 22 unchanged lines hidden (view full) ---
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 * $FreeBSD: head/sys/security/mac/mac_internal.h 104520 2002-10-05 16:46:03Z rwatson $
40 */
41/*
42 * Developed by the TrustedBSD Project.
43 *
44 * Framework for extensible kernel access control. Kernel and userland
45 * interface to the framework, policy registration and composition.
46 */
47
--- 963 unchanged lines hidden (view full) ---
1011 return (EPERM);
1012
1013 /* Precedence goes to error over success; otherwise, arbitrary. */
1014 if (error1 != 0)
1015 return (error1);
1016 return (error2);
1017}
1018
1019void
1020mac_update_devfsdirent(struct devfs_dirent *de, struct vnode *vp)
1021{
1022
1023 MAC_PERFORM(update_devfsdirent, de, &de->de_label, vp, &vp->v_label);
1024}
1025
1026void
1027mac_update_procfsvnode(struct vnode *vp, struct ucred *cred)
--- 268 unchanged lines hidden (view full) ---
1296 return (error);
1297
1298 result = 0;
1299 MAC_BOOLEAN(execve_will_transition, ||, old, vp, &vp->v_label);
1300
1301 return (result);
1302}
1303
1304static void
1305mac_init_label(struct label *label)
1306{
1307
1308 bzero(label, sizeof(*label));
1309 label->l_flags = MAC_FLAG_INITIALIZED;
1310}
1311
1312static void
1313mac_init_structmac(struct mac *mac)
1314{
1315
1316 bzero(mac, sizeof(*mac));
1317 mac->m_macflags = MAC_FLAG_INITIALIZED;
1318}
1319
1320static void
1321mac_destroy_label(struct label *label)
1322{
1323
1324 KASSERT(label->l_flags & MAC_FLAG_INITIALIZED,
1325 ("destroying uninitialized label"));
1326
1327 bzero(label, sizeof(*label));
1328 /* implicit: label->l_flags &= ~MAC_FLAG_INITIALIZED; */
1329}
1330
1331int
1332mac_init_mbuf(struct mbuf *m, int how)
1333{
1334 KASSERT(m->m_flags & M_PKTHDR, ("mac_init_mbuf on non-header mbuf"));
1335
1336 /* "how" is one of M_(TRY|DONT)WAIT */
1337 mac_init_label(&m->m_pkthdr.label);
1338 MAC_PERFORM(init_mbuf_label, &m->m_pkthdr.label, how);
1339#ifdef MAC_DEBUG
1340 atomic_add_int(&nmacmbufs, 1);
1341#endif
1342 return (0);
1343}
1344
1345void
1346mac_destroy_mbuf(struct mbuf *m)
1347{
1348
1349 MAC_PERFORM(destroy_mbuf_label, &m->m_pkthdr.label);
1350 mac_destroy_label(&m->m_pkthdr.label);
1351#ifdef MAC_DEBUG
1352 atomic_subtract_int(&nmacmbufs, 1);
1353#endif
1354}
1355
1356void
1357mac_init_cred(struct ucred *cr)
1358{
1359
1360 mac_init_label(&cr->cr_label);
1361 MAC_PERFORM(init_cred_label, &cr->cr_label);
1362#ifdef MAC_DEBUG
1363 atomic_add_int(&nmaccreds, 1);
1364#endif
1365}
1366
1367void
1368mac_destroy_cred(struct ucred *cr)
1369{
1370
1371 MAC_PERFORM(destroy_cred_label, &cr->cr_label);
1372 mac_destroy_label(&cr->cr_label);
1373#ifdef MAC_DEBUG
1374 atomic_subtract_int(&nmaccreds, 1);
1375#endif
1376}
1377
1378void
1379mac_init_ifnet(struct ifnet *ifp)
1380{
1381
1382 mac_init_label(&ifp->if_label);
1383 MAC_PERFORM(init_ifnet_label, &ifp->if_label);
1384#ifdef MAC_DEBUG
1385 atomic_add_int(&nmacifnets, 1);
1386#endif
1387}
1388
1389void
1390mac_destroy_ifnet(struct ifnet *ifp)
1391{
1392
1393 MAC_PERFORM(destroy_ifnet_label, &ifp->if_label);
1394 mac_destroy_label(&ifp->if_label);
1395#ifdef MAC_DEBUG
1396 atomic_subtract_int(&nmacifnets, 1);
1397#endif
1398}
1399
1400void
1401mac_init_ipq(struct ipq *ipq)
1402{
1403
1404 mac_init_label(&ipq->ipq_label);
1405 MAC_PERFORM(init_ipq_label, &ipq->ipq_label);
1406#ifdef MAC_DEBUG
1407 atomic_add_int(&nmacipqs, 1);
1408#endif
1409}
1410
1411void
1412mac_destroy_ipq(struct ipq *ipq)
1413{
1414
1415 MAC_PERFORM(destroy_ipq_label, &ipq->ipq_label);
1416 mac_destroy_label(&ipq->ipq_label);
1417#ifdef MAC_DEBUG
1418 atomic_subtract_int(&nmacipqs, 1);
1419#endif
1420}
1421
1422void
1423mac_init_socket(struct socket *socket)
1424{
1425
1426 mac_init_label(&socket->so_label);
1427 mac_init_label(&socket->so_peerlabel);
1428 MAC_PERFORM(init_socket_label, &socket->so_label);
1429 MAC_PERFORM(init_socket_peer_label, &socket->so_peerlabel);
1430#ifdef MAC_DEBUG
1431 atomic_add_int(&nmacsockets, 1);
1432#endif
1433}
1434
1435void
1436mac_destroy_socket(struct socket *socket)
1437{
1438
1439 MAC_PERFORM(destroy_socket_label, &socket->so_label);
1440 MAC_PERFORM(destroy_socket_peer_label, &socket->so_peerlabel);
1441 mac_destroy_label(&socket->so_label);
1442 mac_destroy_label(&socket->so_peerlabel);
1443#ifdef MAC_DEBUG
1444 atomic_subtract_int(&nmacsockets, 1);
1445#endif
1446}
1447
1448void
1449mac_init_pipe(struct pipe *pipe)
1450{
1451 struct label *label;
1452
1453 label = malloc(sizeof(struct label), M_MACPIPELABEL, M_ZERO|M_WAITOK);
1454 mac_init_label(label);
1455 pipe->pipe_label = label;
1456 pipe->pipe_peer->pipe_label = label;
1457 MAC_PERFORM(init_pipe_label, pipe->pipe_label);
1458#ifdef MAC_DEBUG
1459 atomic_add_int(&nmacpipes, 1);
1460#endif
1461}
1462
1463void
1464mac_destroy_pipe(struct pipe *pipe)
1465{
1466
1467 MAC_PERFORM(destroy_pipe_label, pipe->pipe_label);
1468 mac_destroy_label(pipe->pipe_label);
1469 free(pipe->pipe_label, M_MACPIPELABEL);
1470#ifdef MAC_DEBUG
1471 atomic_subtract_int(&nmacpipes, 1);
1472#endif
1473}
1474
1475void
1476mac_init_bpfdesc(struct bpf_d *bpf_d)
1477{
1478
1479 mac_init_label(&bpf_d->bd_label);
1480 MAC_PERFORM(init_bpfdesc_label, &bpf_d->bd_label);
1481#ifdef MAC_DEBUG
1482 atomic_add_int(&nmacbpfdescs, 1);
1483#endif
1484}
1485
1486void
1487mac_destroy_bpfdesc(struct bpf_d *bpf_d)
1488{
1489
1490 MAC_PERFORM(destroy_bpfdesc_label, &bpf_d->bd_label);
1491 mac_destroy_label(&bpf_d->bd_label);
1492#ifdef MAC_DEBUG
1493 atomic_subtract_int(&nmacbpfdescs, 1);
1494#endif
1495}
1496
1497void
1498mac_init_mount(struct mount *mp)
1499{
1500
1501 mac_init_label(&mp->mnt_mntlabel);
1502 mac_init_label(&mp->mnt_fslabel);
1503 MAC_PERFORM(init_mount_label, &mp->mnt_mntlabel);
1504 MAC_PERFORM(init_mount_fs_label, &mp->mnt_fslabel);
1505#ifdef MAC_DEBUG
1506 atomic_add_int(&nmacmounts, 1);
1507#endif
1508}
1509
1510void
1511mac_destroy_mount(struct mount *mp)
1512{
1513
1514 MAC_PERFORM(destroy_mount_label, &mp->mnt_mntlabel);
1515 MAC_PERFORM(destroy_mount_fs_label, &mp->mnt_fslabel);
1516 mac_destroy_label(&mp->mnt_fslabel);
1517 mac_destroy_label(&mp->mnt_mntlabel);
1518#ifdef MAC_DEBUG
1519 atomic_subtract_int(&nmacmounts, 1);
1520#endif
1521}
1522
1523static void
1524mac_init_temp(struct label *label)
1525{
1526
1527 mac_init_label(label);
1528 MAC_PERFORM(init_temp_label, label);
1529#ifdef MAC_DEBUG
1530 atomic_add_int(&nmactemp, 1);
1531#endif
1532}
1533
1534static void
1535mac_destroy_temp(struct label *label)
1536{
1537
1538 MAC_PERFORM(destroy_temp_label, label);
1539 mac_destroy_label(label);
1540#ifdef MAC_DEBUG
1541 atomic_subtract_int(&nmactemp, 1);
1542#endif
1543}
1544
1545void
1546mac_init_vnode(struct vnode *vp)
1547{
1548
1549 mac_init_label(&vp->v_label);
1550 MAC_PERFORM(init_vnode_label, &vp->v_label);
1551#ifdef MAC_DEBUG
1552 atomic_add_int(&nmacvnodes, 1);
1553#endif
1554}
1555
1556void
1557mac_destroy_vnode(struct vnode *vp)
1558{
1559
1560 MAC_PERFORM(destroy_vnode_label, &vp->v_label);
1561 mac_destroy_label(&vp->v_label);
1562#ifdef MAC_DEBUG
1563 atomic_subtract_int(&nmacvnodes, 1);
1564#endif
1565}
1566
1567void
1568mac_init_devfsdirent(struct devfs_dirent *de)
1569{
1570
1571 mac_init_label(&de->de_label);
1572 MAC_PERFORM(init_devfsdirent_label, &de->de_label);
1573#ifdef MAC_DEBUG
1574 atomic_add_int(&nmacdevfsdirents, 1);
1575#endif
1576}
1577
1578void
1579mac_destroy_devfsdirent(struct devfs_dirent *de)
1580{
1581
1582 MAC_PERFORM(destroy_devfsdirent_label, &de->de_label);
1583 mac_destroy_label(&de->de_label);
1584#ifdef MAC_DEBUG
1585 atomic_subtract_int(&nmacdevfsdirents, 1);
1586#endif
1587}
1588
1589static int
1590mac_externalize(struct label *label, struct mac *mac)
1591{
1592 int error;
1593
1594 mac_init_structmac(mac);
1595 MAC_CHECK(externalize, label, mac);
1596
--- 1828 unchanged lines hidden ---