* Copyright (c) 2007-2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*-
*/
#include <kern/kalloc.h>
+#include <libkern/OSAtomic.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/reason.h>
#include <sys/uio_internal.h>
#include <sys/vnode_internal.h>
+#include <sys/kdebug.h>
+
#include <miscfs/devfs/devfsdefs.h>
#include <miscfs/devfs/fdesc.h>
#include <security/mac_internal.h>
/* convert {R,W,X}_OK values to V{READ,WRITE,EXEC} */
-#define ACCESS_MODE_TO_VNODE_MASK(m) (m << 6)
+#define ACCESS_MODE_TO_VNODE_MASK(m) (m << 6)
+
+
+/*
+ * Optional tracing of policy operations. Define VFS_TRACE_POLICY_OPS to trace the operations.
+ *
+ * Along with DBG_FSYSTEM and DBG_VFS, dcode in the macros below is used to construct
+ * KDBG_EVENTID(DBG_FSYSTEM, DBG_VFS, dcode) global event id, see bsd/sys/kdebug.h.
+ * Note that dcode is multiplied by 4 and ORed as part of the construction. See bsd/kern/trace_codes
+ * for list of system-wide {global event id, name} pairs. Currently DBG_VFS event ids are in range
+ * [0x3130000, 0x3130174].
+ */
+
+//#define VFS_TRACE_POLICY_OPS
+
+#ifdef VFS_TRACE_POLICY_OPS
+#define DBG_VFS_CODE(dcode) FSDBG_CODE(DBG_VFS, dcode)
+#define VFS_KERNEL_DEBUG_START0(dcode) KERNEL_DEBUG_CONSTANT(DBG_VFS_CODE(dcode) | DBG_FUNC_START, 0, 0, 0, 0, 0)
+#define VFS_KERNEL_DEBUG_END0(dcode) KERNEL_DEBUG_CONSTANT(DBG_VFS_CODE(dcode) | DBG_FUNC_END, 0, 0, 0, 0, 0)
+#define VFS_KERNEL_DEBUG_START1(dcode, darg) KERNEL_DEBUG_CONSTANT(DBG_VFS_CODE(dcode) | DBG_FUNC_START, darg, 0, 0, 0, 0)
+#define VFS_KERNEL_DEBUG_END1(dcode, darg) KERNEL_DEBUG_CONSTANT(DBG_VFS_CODE(dcode) | DBG_FUNC_END, darg, 0, 0, 0, 0)
+#else
+#define VFS_KERNEL_DEBUG_START0(dcode) do {} while (0)
+#define VFS_KERNEL_DEBUG_END0(dcode) do {} while (0)
+#define VFS_KERNEL_DEBUG_START1(dcode, darg) do {} while (0)
+#define VFS_KERNEL_DEBUG_END1(dcode, darg) do {} while (0)
+#endif
static struct label *
mac_devfsdirent_label_alloc(void)
struct label *label;
label = mac_labelzone_alloc(MAC_WAITOK);
- if (label == NULL)
- return (NULL);
+ if (label == NULL) {
+ return NULL;
+ }
+ VFS_KERNEL_DEBUG_START0(0);
MAC_PERFORM(devfs_label_init, label);
- return (label);
+ VFS_KERNEL_DEBUG_END0(0);
+ return label;
}
void
mac_devfs_label_init(struct devnode *de)
{
-
de->dn_label = mac_devfsdirent_label_alloc();
}
struct label *label;
label = mac_labelzone_alloc(MAC_WAITOK);
- if (label == NULL)
- return (NULL);
+ if (label == NULL) {
+ return NULL;
+ }
+ VFS_KERNEL_DEBUG_START0(1);
MAC_PERFORM(mount_label_init, label);
- return (label);
+ VFS_KERNEL_DEBUG_END0(1);
+ return label;
}
void
mac_mount_label_init(struct mount *mp)
{
-
mp->mnt_mntlabel = mac_mount_label_alloc();
}
struct label *label;
label = mac_labelzone_alloc(MAC_WAITOK);
- if (label == NULL)
- return (NULL);
+ if (label == NULL) {
+ return NULL;
+ }
+ VFS_KERNEL_DEBUG_START0(2);
MAC_PERFORM(vnode_label_init, label);
- return (label);
+ VFS_KERNEL_DEBUG_END0(2);
+ OSIncrementAtomic(&mac_vnode_label_count);
+ return label;
}
void
int
mac_vnode_label_init_needed(vnode_t vp)
{
- return (mac_label_vnodes != 0 && vp->v_label == NULL);
+#if CONFIG_MACF_LAZY_VNODE_LABELS
+ (void)vp;
+ return false;
+#else
+ return mac_label_vnodes != 0 && vp->v_label == NULL;
+#endif
+}
+
+struct label *
+mac_vnode_label_allocate(vnode_t vp)
+{
+ if (mac_vnode_label_init_needed(vp)) {
+ vp->v_label = mac_vnode_label_alloc();
+ }
+ return vp->v_label;
}
-/*
+/*
* vnode labels are allocated at the same time as vnodes, but vnodes are never
* freed. Instead, we want to remove any sensitive information before putting
* them on the free list for reuse.
-*/
+ */
void
mac_vnode_label_recycle(vnode_t vp)
{
-
MAC_PERFORM(vnode_label_recycle, vp->v_label);
+#if CONFIG_MACF_LAZY_VNODE_LABELS
+ if (vp->v_label) {
+ mac_vnode_label_destroy(vp);
+ vp->v_label = NULL;
+ vp->v_lflag &= ~VL_LABELED;
+ }
+#endif
}
static void
mac_devfs_label_free(struct label *label)
{
+ VFS_KERNEL_DEBUG_START1(3, label);
MAC_PERFORM(devfs_label_destroy, label);
+ VFS_KERNEL_DEBUG_END1(3, label);
mac_labelzone_free(label);
}
static void
mac_mount_label_free(struct label *label)
{
-
+ VFS_KERNEL_DEBUG_START1(4, label);
MAC_PERFORM(mount_label_destroy, label);
+ VFS_KERNEL_DEBUG_END1(4, label);
mac_labelzone_free(label);
}
void
mac_vnode_label_free(struct label *label)
{
- MAC_PERFORM(vnode_label_destroy, label);
- mac_labelzone_free(label);
+ if (label != NULL) {
+ VFS_KERNEL_DEBUG_START1(5, label);
+ MAC_PERFORM(vnode_label_destroy, label);
+ VFS_KERNEL_DEBUG_END1(5, label);
+ mac_labelzone_free(label);
+ OSDecrementAtomic(&mac_vnode_label_count);
+ }
}
-#ifndef __APPLE__
void
mac_vnode_label_destroy(struct vnode *vp)
{
vp->v_label = NULL;
}
}
-#endif
void
mac_vnode_label_copy(struct label *src, struct label *dest)
{
+ VFS_KERNEL_DEBUG_START1(6, src);
if (src == NULL) {
MAC_PERFORM(vnode_label_init, dest);
} else {
MAC_PERFORM(vnode_label_copy, src, dest);
}
+ VFS_KERNEL_DEBUG_END1(6, src);
}
int
error = MAC_EXTERNALIZE_AUDIT(vnode, vp->v_label,
mac->m_string, mac->m_buflen);
- return (error);
+ return error;
}
int
error = MAC_EXTERNALIZE(vnode, label, elements, outbuf, outbuflen);
- return (error);
+ return error;
}
int
error = MAC_INTERNALIZE(vnode, label, string);
- return (error);
+ return error;
}
int
error = MAC_INTERNALIZE(mount, label, string);
- return (error);
+ return error;
}
int
error = MAC_EXTERNALIZE(mount, label, elements, outbuf, outbuflen);
- return (error);
+ return error;
}
void
{
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_device_enforce)
+ if (!mac_device_enforce) {
return;
+ }
#endif
+ VFS_KERNEL_DEBUG_START1(7, src);
MAC_PERFORM(devfs_label_copy, src, dest);
+ VFS_KERNEL_DEBUG_END1(7, src);
}
void
{
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_device_enforce)
+ if (!mac_device_enforce) {
return;
+ }
#endif
+ VFS_KERNEL_DEBUG_START1(8, vp);
MAC_PERFORM(devfs_label_update, mp, de, de->dn_label, vp,
vp->v_label);
+ VFS_KERNEL_DEBUG_END1(8, vp);
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
- return (error);
+ if (!mac_vnode_enforce) {
+ return error;
+ }
#endif
/* XXX: should not inspect v_tag in kernel! */
break;
}
- return (error);
+ return error;
}
void
{
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_device_enforce)
+ if (!mac_device_enforce) {
return;
+ }
#endif
+ VFS_KERNEL_DEBUG_START1(9, vp);
MAC_PERFORM(vnode_label_associate_devfs,
mp, mp ? mp->mnt_mntlabel : NULL,
de, de->dn_label,
vp, vp->v_label);
+ VFS_KERNEL_DEBUG_END1(9, vp);
}
int
{
int error;
+ VFS_KERNEL_DEBUG_START1(10, vp);
MAC_CHECK(vnode_label_associate_extattr, mp, mp->mnt_mntlabel, vp,
vp->v_label);
+ VFS_KERNEL_DEBUG_END1(10, vp);
- return (error);
+ return error;
}
void
{
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_label_vnodes)
+ if (!mac_label_vnodes) {
return;
+ }
+ VFS_KERNEL_DEBUG_START1(11, vp);
MAC_PERFORM(vnode_label_associate_singlelabel, mp,
mp ? mp->mnt_mntlabel : NULL, vp, vp->v_label);
+ VFS_KERNEL_DEBUG_END1(11, vp);
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
- return (0);
+ if (!mac_vnode_enforce) {
+ return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(12, vp);
MAC_CHECK(vnode_notify_create, cred, mp, mp->mnt_mntlabel,
dvp, dvp->v_label, vp, vp->v_label, cnp);
+ VFS_KERNEL_DEBUG_END1(12, vp);
- return (error);
+ return error;
}
void
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(13, vp);
MAC_PERFORM(vnode_notify_rename, cred, vp, vp->v_label,
dvp, dvp->v_label, cnp);
+ VFS_KERNEL_DEBUG_END1(13, vp);
}
void
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(14, vp);
MAC_PERFORM(vnode_notify_open, cred, vp, vp->v_label, acc_flags);
+ VFS_KERNEL_DEBUG_END1(14, vp);
}
void
mac_vnode_notify_link(vfs_context_t ctx, struct vnode *vp,
- struct vnode *dvp, struct componentname *cnp)
+ struct vnode *dvp, struct componentname *cnp)
{
kauth_cred_t cred;
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(15, vp);
MAC_PERFORM(vnode_notify_link, cred, dvp, dvp->v_label, vp, vp->v_label, cnp);
+ VFS_KERNEL_DEBUG_END1(15, vp);
}
void
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(16, vp);
MAC_PERFORM(vnode_notify_deleteextattr, cred, vp, vp->v_label, name);
+ VFS_KERNEL_DEBUG_END1(16, vp);
}
void
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(17, vp);
MAC_PERFORM(vnode_notify_setacl, cred, vp, vp->v_label, acl);
+ VFS_KERNEL_DEBUG_END1(17, vp);
}
void
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(18, vp);
MAC_PERFORM(vnode_notify_setattrlist, cred, vp, vp->v_label, alist);
+ VFS_KERNEL_DEBUG_END1(18, vp);
}
void
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(19, vp);
MAC_PERFORM(vnode_notify_setextattr, cred, vp, vp->v_label, name, uio);
+ VFS_KERNEL_DEBUG_END1(19, vp);
}
void
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(20, vp);
MAC_PERFORM(vnode_notify_setflags, cred, vp, vp->v_label, flags);
+ VFS_KERNEL_DEBUG_END1(20, vp);
}
void
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(21, vp);
MAC_PERFORM(vnode_notify_setmode, cred, vp, vp->v_label, mode);
+ VFS_KERNEL_DEBUG_END1(21, vp);
}
void
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(22, vp);
MAC_PERFORM(vnode_notify_setowner, cred, vp, vp->v_label, uid, gid);
+ VFS_KERNEL_DEBUG_END1(22, vp);
}
void
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(23, vp);
MAC_PERFORM(vnode_notify_setutimes, cred, vp, vp->v_label, atime, mtime);
+ VFS_KERNEL_DEBUG_END1(23, vp);
}
void
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return;
+ }
+ VFS_KERNEL_DEBUG_START1(24, vp);
MAC_PERFORM(vnode_notify_truncate, cred, file_cred, vp, vp->v_label);
+ VFS_KERNEL_DEBUG_END1(24, vp);
}
/*
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return;
+ }
#endif
- if (!mac_label_vnodes)
+ if (!mac_label_vnodes) {
return;
+ }
+ VFS_KERNEL_DEBUG_START1(25, vp);
MAC_PERFORM(vnode_label_update_extattr, mp, mp->mnt_mntlabel, vp,
- vp->v_label, name);
- if (error == 0)
+ vp->v_label, name);
+ VFS_KERNEL_DEBUG_END1(25, vp);
+ if (error == 0) {
return;
+ }
vnode_lock(vp);
vnode_relabel(vp);
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_label_vnodes ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+ if (!mac_label_vnodes) {
return 0;
+ }
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(26, vp);
MAC_CHECK(vnode_label_store, cred, vp, vp->v_label, intlabel);
+ VFS_KERNEL_DEBUG_END1(26, vp);
- return (error);
+ return error;
}
void
mac_cred_label_update_execve(vfs_context_t ctx, kauth_cred_t new, struct vnode *vp, off_t offset,
- struct vnode *scriptvp, struct label *scriptvnodelabel, struct label *execl, u_int *csflags,
- void *macextensions, int *disjoint, int *labelupdateerror)
+ struct vnode *scriptvp, struct label *scriptvnodelabel, struct label *execl, u_int *csflags,
+ void *macextensions, int *disjoint, int *labelupdateerror)
{
kauth_cred_t cred;
*disjoint = 0;
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_proc_enforce || !mac_vnode_enforce)
+ if (!mac_proc_enforce || !mac_vnode_enforce) {
return;
+ }
#endif
/* mark the new cred to indicate "matching" includes the label */
* calling exec_spawnattr_getmacpolicyinfo() and before passing the
* spawnattrlen as an argument to the hook.
*/
+ VFS_KERNEL_DEBUG_START1(27, vp);
{
struct mac_policy_conf *mpc;
u_int i;
error = 0;
- for (i = 0; i< mac_policy_list.staticmax; i++) {
+ for (i = 0; i < mac_policy_list.staticmax; i++) {
mpc = mac_policy_list.entries[i].mpc;
- if (mpc == NULL)
+ if (mpc == NULL) {
continue;
+ }
mpo_cred_label_update_execve_t *hook = mpc->mpc_ops->mpo_cred_label_update_execve;
- if (hook == NULL)
+ if (hook == NULL) {
continue;
+ }
size_t spawnattrlen = 0;
void *spawnattr = exec_spawnattr_getmacpolicyinfo(macextensions, mpc->mpc_name, &spawnattrlen);
error = mac_error_select(hook(cred, new, vfs_context_proc(ctx), vp, offset, scriptvp,
- vp->v_label, scriptvnodelabel, execl, csflags, spawnattr, spawnattrlen, disjoint),
- error);
+ vp->v_label, scriptvnodelabel, execl, csflags, spawnattr, spawnattrlen, disjoint),
+ error);
}
- if (mac_policy_list_conditional_busy() != 0) {
+ if (mac_policy_list_conditional_busy() != 0) {
for (; i <= mac_policy_list.maxindex; i++) {
mpc = mac_policy_list.entries[i].mpc;
- if (mpc == NULL)
+ if (mpc == NULL) {
continue;
+ }
mpo_cred_label_update_execve_t *hook = mpc->mpc_ops->mpo_cred_label_update_execve;
- if (hook == NULL)
+ if (hook == NULL) {
continue;
+ }
size_t spawnattrlen = 0;
void *spawnattr = exec_spawnattr_getmacpolicyinfo(macextensions, mpc->mpc_name, &spawnattrlen);
error = mac_error_select(hook(cred, new, vfs_context_proc(ctx), vp, offset, scriptvp,
- vp->v_label, scriptvnodelabel, execl, csflags, spawnattr, spawnattrlen, disjoint),
- error);
+ vp->v_label, scriptvnodelabel, execl, csflags, spawnattr, spawnattrlen, disjoint),
+ error);
}
mac_policy_list_unbusy();
}
}
*labelupdateerror = error;
+ VFS_KERNEL_DEBUG_END1(27, vp);
}
int
mac_cred_check_label_update_execve(vfs_context_t ctx, struct vnode *vp, off_t offset,
- struct vnode *scriptvp, struct label *scriptvnodelabel, struct label *execlabel,
- struct proc *p, void *macextensions)
+ struct vnode *scriptvp, struct label *scriptvnodelabel, struct label *execlabel,
+ struct proc *p, void *macextensions)
{
kauth_cred_t cred;
int result = 0;
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_proc_enforce || !mac_vnode_enforce)
+ if (!mac_proc_enforce || !mac_vnode_enforce) {
return result;
+ }
#endif
cred = vfs_context_ucred(ctx);
+ VFS_KERNEL_DEBUG_START1(28, vp);
/*
* NB: Cannot use MAC_BOOLEAN macro because we need a sequence point after
* calling exec_spawnattr_getmacpolicyinfo() and before passing the
struct mac_policy_conf *mpc;
u_int i;
- for (i = 0; i< mac_policy_list.staticmax; i++) {
+ for (i = 0; i < mac_policy_list.staticmax; i++) {
mpc = mac_policy_list.entries[i].mpc;
- if (mpc == NULL)
+ if (mpc == NULL) {
continue;
+ }
mpo_cred_check_label_update_execve_t *hook = mpc->mpc_ops->mpo_cred_check_label_update_execve;
- if (hook == NULL)
+ if (hook == NULL) {
continue;
+ }
size_t spawnattrlen = 0;
void *spawnattr = exec_spawnattr_getmacpolicyinfo(macextensions, mpc->mpc_name, &spawnattrlen);
result = result || hook(cred, vp, offset, scriptvp, vp->v_label, scriptvnodelabel, execlabel, p, spawnattr, spawnattrlen);
}
- if (mac_policy_list_conditional_busy() != 0) {
+ if (mac_policy_list_conditional_busy() != 0) {
for (; i <= mac_policy_list.maxindex; i++) {
mpc = mac_policy_list.entries[i].mpc;
- if (mpc == NULL)
+ if (mpc == NULL) {
continue;
+ }
mpo_cred_check_label_update_execve_t *hook = mpc->mpc_ops->mpo_cred_check_label_update_execve;
- if (hook == NULL)
+ if (hook == NULL) {
continue;
+ }
size_t spawnattrlen = 0;
void *spawnattr = exec_spawnattr_getmacpolicyinfo(macextensions, mpc->mpc_name, &spawnattrlen);
mac_policy_list_unbusy();
}
}
+ VFS_KERNEL_DEBUG_END1(28, vp);
- return (result);
+ return result;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
/* Convert {R,W,X}_OK values to V{READ,WRITE,EXEC} for entry points */
mask = ACCESS_MODE_TO_VNODE_MASK(acc_mode);
+ VFS_KERNEL_DEBUG_START1(29, vp);
MAC_CHECK(vnode_check_access, cred, vp, vp->v_label, mask);
- return (error);
- }
+ VFS_KERNEL_DEBUG_END1(29, vp);
+ return error;
+}
int
mac_vnode_check_chdir(vfs_context_t ctx, struct vnode *dvp)
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(30, dvp);
MAC_CHECK(vnode_check_chdir, cred, dvp, dvp->v_label);
- return (error);
+ VFS_KERNEL_DEBUG_END1(30, dvp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(31, dvp);
MAC_CHECK(vnode_check_chroot, cred, dvp, dvp->v_label, cnp);
- return (error);
+ VFS_KERNEL_DEBUG_END1(31, dvp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(32, dvp);
MAC_CHECK(vnode_check_clone, cred, dvp, dvp->v_label, vp,
vp->v_label, cnp);
- return (error);
+ VFS_KERNEL_DEBUG_END1(32, dvp);
+ return error;
}
int
mac_vnode_check_create(vfs_context_t ctx, struct vnode *dvp,
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(33, dvp);
MAC_CHECK(vnode_check_create, cred, dvp, dvp->v_label, cnp, vap);
- return (error);
+ VFS_KERNEL_DEBUG_END1(33, dvp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(34, dvp);
MAC_CHECK(vnode_check_unlink, cred, dvp, dvp->v_label, vp,
vp->v_label, cnp);
- return (error);
+ VFS_KERNEL_DEBUG_END1(34, dvp);
+ return error;
}
#if 0
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(35, dvp);
MAC_CHECK(vnode_check_deleteacl, cred, vp, vp->v_label, type);
- return (error);
+ VFS_KERNEL_DEBUG_END1(35, dvp);
+ return error;
}
#endif
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(36, vp);
MAC_CHECK(vnode_check_deleteextattr, cred, vp, vp->v_label, name);
- return (error);
+ VFS_KERNEL_DEBUG_END1(36, vp);
+ return error;
}
int
mac_vnode_check_exchangedata(vfs_context_t ctx,
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
- MAC_CHECK(vnode_check_exchangedata, cred, v1, v1->v_label,
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(37, v1);
+ MAC_CHECK(vnode_check_exchangedata, cred, v1, v1->v_label,
v2, v2->v_label);
+ VFS_KERNEL_DEBUG_END1(37, v1);
- return (error);
+ return error;
}
#if 0
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(38, vp);
MAC_CHECK(vnode_check_getacl, cred, vp, vp->v_label, type);
- return (error);
+ VFS_KERNEL_DEBUG_END1(38, vp);
+ return error;
}
#endif
int
-mac_vnode_check_getattrlist(vfs_context_t ctx, struct vnode *vp,
- struct attrlist *alist)
+mac_vnode_check_getattr(vfs_context_t ctx, struct ucred *file_cred,
+ struct vnode *vp, struct vnode_attr *va)
{
kauth_cred_t cred;
int error;
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(39, vp);
+ MAC_CHECK(vnode_check_getattr, cred, file_cred, vp, vp->v_label, va);
+ VFS_KERNEL_DEBUG_END1(39, vp);
+ return error;
+}
+
+int
+mac_vnode_check_getattrlist(vfs_context_t ctx, struct vnode *vp,
+ struct attrlist *alist)
+{
+ kauth_cred_t cred;
+ int error;
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce) {
+ return 0;
+ }
+#endif
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(40, vp);
MAC_CHECK(vnode_check_getattrlist, cred, vp, vp->v_label, alist);
+ VFS_KERNEL_DEBUG_END1(40, vp);
/* Falsify results instead of returning error? */
- return (error);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_proc_enforce || !mac_vnode_enforce)
+ if (!mac_proc_enforce || !mac_vnode_enforce) {
return 0;
+ }
#endif
cred = vfs_context_ucred(ctx);
* calling exec_spawnattr_getmacpolicyinfo() and before passing the
* spawnattrlen as an argument to the hook.
*/
+ VFS_KERNEL_DEBUG_START1(41, vp);
{
struct mac_policy_conf *mpc;
u_int i;
- for (i = 0; i< mac_policy_list.staticmax; i++) {
+ for (i = 0; i < mac_policy_list.staticmax; i++) {
mpc = mac_policy_list.entries[i].mpc;
- if (mpc == NULL)
+ if (mpc == NULL) {
continue;
+ }
mpo_vnode_check_exec_t *hook = mpc->mpc_ops->mpo_vnode_check_exec;
- if (hook == NULL)
+ if (hook == NULL) {
continue;
+ }
size_t spawnattrlen = 0;
void *spawnattr = exec_spawnattr_getmacpolicyinfo(imgp->ip_px_smpx, mpc->mpc_name, &spawnattrlen);
error = mac_error_select(
- hook(cred,
- vp, imgp->ip_scriptvp, vp->v_label, imgp->ip_scriptlabelp,
- imgp->ip_execlabelp, &imgp->ip_ndp->ni_cnd, &imgp->ip_csflags,
- spawnattr, spawnattrlen), error);
+ hook(cred,
+ vp, imgp->ip_scriptvp, vp->v_label, imgp->ip_scriptlabelp,
+ imgp->ip_execlabelp, &imgp->ip_ndp->ni_cnd, &imgp->ip_csflags,
+ spawnattr, spawnattrlen), error);
}
- if (mac_policy_list_conditional_busy() != 0) {
+ if (mac_policy_list_conditional_busy() != 0) {
for (; i <= mac_policy_list.maxindex; i++) {
mpc = mac_policy_list.entries[i].mpc;
- if (mpc == NULL)
+ if (mpc == NULL) {
continue;
+ }
mpo_vnode_check_exec_t *hook = mpc->mpc_ops->mpo_vnode_check_exec;
- if (hook == NULL)
+ if (hook == NULL) {
continue;
+ }
size_t spawnattrlen = 0;
void *spawnattr = exec_spawnattr_getmacpolicyinfo(imgp->ip_px_smpx, mpc->mpc_name, &spawnattrlen);
error = mac_error_select(
- hook(cred,
- vp, imgp->ip_scriptvp, vp->v_label, imgp->ip_scriptlabelp,
- imgp->ip_execlabelp, &imgp->ip_ndp->ni_cnd, &imgp->ip_csflags,
- spawnattr, spawnattrlen), error);
+ hook(cred,
+ vp, imgp->ip_scriptvp, vp->v_label, imgp->ip_scriptlabelp,
+ imgp->ip_execlabelp, &imgp->ip_ndp->ni_cnd, &imgp->ip_csflags,
+ spawnattr, spawnattrlen), error);
}
mac_policy_list_unbusy();
}
}
+ VFS_KERNEL_DEBUG_END1(41, vp);
- return (error);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(42, vp);
MAC_CHECK(vnode_check_fsgetpath, cred, vp, vp->v_label);
- return (error);
+ VFS_KERNEL_DEBUG_END1(42, vp);
+ return error;
}
int
mac_vnode_check_signature(struct vnode *vp, struct cs_blob *cs_blob,
- struct image_params *imgp,
- unsigned int *cs_flags, int flags)
+ struct image_params *imgp,
+ unsigned int *cs_flags, unsigned int *signer_type,
+ int flags, unsigned int platform)
{
- int error;
- char *fatal_failure_desc = NULL;
- size_t fatal_failure_desc_len = 0;
+ int error;
+ char *fatal_failure_desc = NULL;
+ size_t fatal_failure_desc_len = 0;
- char *vn_path = NULL;
- vm_size_t vn_pathlen = MAXPATHLEN;
+ char *vn_path = NULL;
+ vm_size_t vn_pathlen = MAXPATHLEN;
+ cpu_type_t cpu_type = (imgp == NULL) ? CPU_TYPE_ANY : imgp->ip_origcputype;
#if SECURITY_MAC_CHECK_ENFORCE
- /* 21167099 - only check if we allow write */
- if (!mac_proc_enforce || !mac_vnode_enforce)
- return 0;
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce || !mac_vnode_enforce) {
+ return 0;
+ }
#endif
- MAC_CHECK(vnode_check_signature, vp, vp->v_label, cs_blob,
- cs_flags, flags, &fatal_failure_desc, &fatal_failure_desc_len);
+ VFS_KERNEL_DEBUG_START1(43, vp);
+ MAC_CHECK(vnode_check_signature, vp, vp->v_label, cpu_type, cs_blob,
+ cs_flags, signer_type, flags, platform, &fatal_failure_desc, &fatal_failure_desc_len);
+ VFS_KERNEL_DEBUG_END1(43, vp);
- if (fatal_failure_desc_len) {
- // A fatal code signature validation failure occured, formulate a crash
- // reason.
+ if (fatal_failure_desc_len) {
+ // A fatal code signature validation failure occured, formulate a crash
+ // reason.
- char const *path = NULL;
+ char const *path = NULL;
- vn_path = (char *)kalloc(MAXPATHLEN);
- if (vn_path != NULL) {
- if (vn_getpath(vp, vn_path, (int*)&vn_pathlen) == 0) {
- path = vn_path;
- } else {
- path = "(get vnode path failed)";
- }
- } else {
- path = "(path alloc failed)";
- }
-
- if (error == 0) {
- panic("mac_vnode_check_signature: MAC hook returned no error, "
- "but status is claimed to be fatal? "
- "path: '%s', fatal_failure_desc_len: %ld, fatal_failure_desc:\n%s\n",
- path, fatal_failure_desc_len, fatal_failure_desc);
- }
-
- printf("mac_vnode_check_signature: %s: code signature validation failed fatally: %s",
- path, fatal_failure_desc);
-
- if (imgp == NULL) {
- goto out;
- }
-
- os_reason_t reason = os_reason_create(OS_REASON_CODESIGNING,
- CODESIGNING_EXIT_REASON_TASKGATED_INVALID_SIG);
-
- if (reason == OS_REASON_NULL) {
- printf("mac_vnode_check_signature: %s: failure to allocate exit reason for validation failure: %s\n",
- path, fatal_failure_desc);
- goto out;
- }
-
- imgp->ip_cs_error = reason;
- reason->osr_flags = (OS_REASON_FLAG_GENERATE_CRASH_REPORT |
- OS_REASON_FLAG_CONSISTENT_FAILURE);
-
- if (fatal_failure_desc == NULL) {
- // This may happen if allocation for the buffer failed.
- printf("mac_vnode_check_signature: %s: fatal failure is missing its description.\n", path);
- } else {
- mach_vm_address_t data_addr = 0;
-
- int reason_error = 0;
- int kcdata_error = 0;
-
- if ((reason_error = os_reason_alloc_buffer(reason, kcdata_estimate_required_buffer_size
- (1, fatal_failure_desc_len))) == 0 &&
- (kcdata_error = kcdata_get_memory_addr(&reason->osr_kcd_descriptor,
- EXIT_REASON_USER_DESC, fatal_failure_desc_len,
- &data_addr)) == KERN_SUCCESS) {
- kern_return_t mc_error = kcdata_memcpy(&reason->osr_kcd_descriptor, (mach_vm_address_t)data_addr,
- fatal_failure_desc, fatal_failure_desc_len);
-
- if (mc_error != KERN_SUCCESS) {
- printf("mac_vnode_check_signature: %s: failed to copy reason string "
- "(kcdata_memcpy error: %d, length: %ld)\n",
- path, mc_error, fatal_failure_desc_len);
- }
- } else {
- printf("mac_vnode_check_signature: %s: failed to allocate space for reason string "
- "(os_reason_alloc_buffer error: %d, kcdata error: %d, length: %ld)\n",
- path, reason_error, kcdata_error, fatal_failure_desc_len);
- }
+ vn_path = zalloc(ZV_NAMEI);
+ if (vn_getpath(vp, vn_path, (int*)&vn_pathlen) == 0) {
+ path = vn_path;
+ } else {
+ path = "(get vnode path failed)";
+ }
+
+ if (error == 0) {
+ panic("mac_vnode_check_signature: MAC hook returned no error, "
+ "but status is claimed to be fatal? "
+ "path: '%s', fatal_failure_desc_len: %ld, fatal_failure_desc:\n%s\n",
+ path, fatal_failure_desc_len, fatal_failure_desc);
+ }
+
+ printf("mac_vnode_check_signature: %s: code signature validation failed fatally: %s",
+ path, fatal_failure_desc);
- }
- }
+ if (imgp == NULL) {
+ goto out;
+ }
+
+ os_reason_t reason = os_reason_create(OS_REASON_CODESIGNING,
+ CODESIGNING_EXIT_REASON_TASKGATED_INVALID_SIG);
+
+ if (reason == OS_REASON_NULL) {
+ printf("mac_vnode_check_signature: %s: failure to allocate exit reason for validation failure: %s\n",
+ path, fatal_failure_desc);
+ goto out;
+ }
+
+ imgp->ip_cs_error = reason;
+ reason->osr_flags = (OS_REASON_FLAG_GENERATE_CRASH_REPORT |
+ OS_REASON_FLAG_CONSISTENT_FAILURE);
+
+ if (fatal_failure_desc == NULL) {
+ // This may happen if allocation for the buffer failed.
+ printf("mac_vnode_check_signature: %s: fatal failure is missing its description.\n", path);
+ } else {
+ mach_vm_address_t data_addr = 0;
+
+ int reason_error = 0;
+ int kcdata_error = 0;
+
+ if ((reason_error = os_reason_alloc_buffer_noblock(reason, kcdata_estimate_required_buffer_size
+ (1, (uint32_t)fatal_failure_desc_len))) == 0 &&
+ (kcdata_error = kcdata_get_memory_addr(&reason->osr_kcd_descriptor,
+ EXIT_REASON_USER_DESC, (uint32_t)fatal_failure_desc_len,
+ &data_addr)) == KERN_SUCCESS) {
+ kern_return_t mc_error = kcdata_memcpy(&reason->osr_kcd_descriptor, (mach_vm_address_t)data_addr,
+ fatal_failure_desc, (uint32_t)fatal_failure_desc_len);
+
+ if (mc_error != KERN_SUCCESS) {
+ printf("mac_vnode_check_signature: %s: failed to copy reason string "
+ "(kcdata_memcpy error: %d, length: %ld)\n",
+ path, mc_error, fatal_failure_desc_len);
+ }
+ } else {
+ printf("mac_vnode_check_signature: %s: failed to allocate space for reason string "
+ "(os_reason_alloc_buffer error: %d, kcdata error: %d, length: %ld)\n",
+ path, reason_error, kcdata_error, fatal_failure_desc_len);
+ }
+ }
+ }
out:
- if (vn_path) {
- kfree(vn_path, MAXPATHLEN);
- }
+ if (vn_path) {
+ zfree(ZV_NAMEI, vn_path);
+ }
+
+ if (fatal_failure_desc_len > 0 && fatal_failure_desc != NULL) {
+ /* AMFI uses kalloc() which for kexts is redirected to KHEAP_KEXT */
+ kheap_free(KHEAP_KEXT, fatal_failure_desc, fatal_failure_desc_len);
+ }
+
+ return error;
+}
- if (fatal_failure_desc_len > 0 && fatal_failure_desc != NULL) {
- kfree(fatal_failure_desc, fatal_failure_desc_len);
- }
+int
+mac_vnode_check_supplemental_signature(struct vnode *vp,
+ struct cs_blob *cs_blob, struct vnode *linked_vp,
+ struct cs_blob *linked_cs_blob, unsigned int *signer_type)
+{
+ int error;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce || !mac_vnode_enforce) {
+ return 0;
+ }
+#endif
+ VFS_KERNEL_DEBUG_START1(93, vp);
+ MAC_CHECK(vnode_check_supplemental_signature, vp, vp->v_label, cs_blob, linked_vp, linked_cs_blob,
+ signer_type);
+ VFS_KERNEL_DEBUG_END1(93, vp);
- return (error);
+ return error;
}
#if 0
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(44, vp);
MAC_CHECK(vnode_check_getacl, cred, vp, vp->v_label, type);
- return (error);
+ VFS_KERNEL_DEBUG_END1(44, vp);
+ return error;
}
#endif
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(45, vp);
MAC_CHECK(vnode_check_getextattr, cred, vp, vp->v_label,
name, uio);
- return (error);
+ VFS_KERNEL_DEBUG_END1(45, vp);
+ return error;
}
int
-mac_vnode_check_ioctl(vfs_context_t ctx, struct vnode *vp, u_int cmd)
+mac_vnode_check_ioctl(vfs_context_t ctx, struct vnode *vp, u_long cmd)
{
kauth_cred_t cred;
int error;
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(46, vp);
MAC_CHECK(vnode_check_ioctl, cred, vp, vp->v_label, cmd);
- return (error);
+ VFS_KERNEL_DEBUG_END1(46, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(47, vp);
MAC_CHECK(vnode_check_kqfilter, cred, file_cred, kn, vp,
vp->v_label);
+ VFS_KERNEL_DEBUG_END1(47, vp);
- return (error);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(48, vp);
MAC_CHECK(vnode_check_link, cred, dvp, dvp->v_label, vp,
vp->v_label, cnp);
- return (error);
+ VFS_KERNEL_DEBUG_END1(48, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(49, vp);
+ MAC_CHECK(vnode_check_listextattr, cred, vp, vp->v_label);
+ VFS_KERNEL_DEBUG_END1(49, vp);
+ return error;
+}
+
+int
+mac_vnode_check_lookup_preflight(vfs_context_t ctx, struct vnode *dvp,
+ const char *path, size_t pathlen)
+{
+ kauth_cred_t cred;
+ int error;
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce) {
+ return 0;
+ }
+#endif
cred = vfs_context_ucred(ctx);
- MAC_CHECK(vnode_check_listextattr, cred, vp, vp->v_label);
- return (error);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(50, dvp);
+ MAC_CHECK(vnode_check_lookup_preflight, cred, dvp, dvp->v_label, path, pathlen);
+ VFS_KERNEL_DEBUG_END1(50, dvp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(51, dvp);
MAC_CHECK(vnode_check_lookup, cred, dvp, dvp->v_label, cnp);
- return (error);
+ VFS_KERNEL_DEBUG_END1(51, dvp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(52, vp);
MAC_CHECK(vnode_check_open, cred, vp, vp->v_label, acc_mode);
- return (error);
+ VFS_KERNEL_DEBUG_END1(52, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(53, vp);
MAC_CHECK(vnode_check_read, cred, file_cred, vp,
vp->v_label);
+ VFS_KERNEL_DEBUG_END1(53, vp);
- return (error);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(54, dvp);
MAC_CHECK(vnode_check_readdir, cred, dvp, dvp->v_label);
- return (error);
+ VFS_KERNEL_DEBUG_END1(54, dvp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(55, vp);
MAC_CHECK(vnode_check_readlink, cred, vp, vp->v_label);
- return (error);
+ VFS_KERNEL_DEBUG_END1(55, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(56, vp);
MAC_CHECK(vnode_check_label_update, cred, vp, vp->v_label, newlabel);
+ VFS_KERNEL_DEBUG_END1(56, vp);
- return (error);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(57, vp);
MAC_CHECK(vnode_check_rename_from, cred, dvp, dvp->v_label, vp,
vp->v_label, cnp);
- if (error)
- return (error);
+ if (error) {
+ VFS_KERNEL_DEBUG_END1(57, vp);
+ return error;
+ }
MAC_CHECK(vnode_check_rename_to, cred, tdvp, tdvp->v_label, tvp,
tvp != NULL ? tvp->v_label : NULL, dvp == tdvp, tcnp);
- if (error)
- return (error);
+ if (error) {
+ VFS_KERNEL_DEBUG_END1(57, vp);
+ return error;
+ }
MAC_CHECK(vnode_check_rename, cred, dvp, dvp->v_label, vp,
vp->v_label, cnp, tdvp, tdvp->v_label, tvp,
tvp != NULL ? tvp->v_label : NULL, tcnp);
- return (error);
+ VFS_KERNEL_DEBUG_END1(57, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(58, vp);
MAC_CHECK(vnode_check_revoke, cred, vp, vp->v_label);
- return (error);
+ VFS_KERNEL_DEBUG_END1(58, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(59, vp);
MAC_CHECK(vnode_check_searchfs, cred, vp, vp->v_label, alist);
- return (error);
+ VFS_KERNEL_DEBUG_END1(59, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(60, vp);
MAC_CHECK(vnode_check_select, cred, vp, vp->v_label, which);
- return (error);
+ VFS_KERNEL_DEBUG_END1(60, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(61, vp);
MAC_CHECK(vnode_check_setacl, cred, vp, vp->v_label, acl);
- return (error);
+ VFS_KERNEL_DEBUG_END1(61, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(62, vp);
MAC_CHECK(vnode_check_setattrlist, cred, vp, vp->v_label, alist);
- return (error);
+ VFS_KERNEL_DEBUG_END1(62, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(63, vp);
MAC_CHECK(vnode_check_setextattr, cred, vp, vp->v_label,
name, uio);
- return (error);
+ VFS_KERNEL_DEBUG_END1(63, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(64, vp);
MAC_CHECK(vnode_check_setflags, cred, vp, vp->v_label, flags);
- return (error);
+ VFS_KERNEL_DEBUG_END1(64, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(65, vp);
MAC_CHECK(vnode_check_setmode, cred, vp, vp->v_label, mode);
- return (error);
+ VFS_KERNEL_DEBUG_END1(65, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(66, vp);
MAC_CHECK(vnode_check_setowner, cred, vp, vp->v_label, uid, gid);
- return (error);
+ VFS_KERNEL_DEBUG_END1(66, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(67, vp);
MAC_CHECK(vnode_check_setutimes, cred, vp, vp->v_label, atime,
mtime);
- return (error);
+ VFS_KERNEL_DEBUG_END1(67, vp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(68, vp);
MAC_CHECK(vnode_check_stat, cred, file_cred, vp,
vp->v_label);
- return (error);
+ VFS_KERNEL_DEBUG_END1(68, vp);
+ return error;
}
int
-mac_vnode_check_truncate(vfs_context_t ctx, struct ucred *file_cred,
- struct vnode *vp)
+mac_vnode_check_trigger_resolve(vfs_context_t ctx, struct vnode *dvp,
+ struct componentname *cnp)
{
kauth_cred_t cred;
int error;
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(69, dvp);
+ MAC_CHECK(vnode_check_trigger_resolve, cred, dvp, dvp->v_label, cnp);
+ VFS_KERNEL_DEBUG_END1(69, dvp);
+ return error;
+}
+int
+mac_vnode_check_truncate(vfs_context_t ctx, struct ucred *file_cred,
+ struct vnode *vp)
+{
+ kauth_cred_t cred;
+ int error;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce) {
+ return 0;
+ }
+#endif
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(70, vp);
MAC_CHECK(vnode_check_truncate, cred, file_cred, vp,
vp->v_label);
+ VFS_KERNEL_DEBUG_END1(70, vp);
- return (error);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(71, vp);
MAC_CHECK(vnode_check_write, cred, file_cred, vp, vp->v_label);
+ VFS_KERNEL_DEBUG_END1(71, vp);
- return (error);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(72, dvp);
MAC_CHECK(vnode_check_uipc_bind, cred, dvp, dvp->v_label, cnp, vap);
- return (error);
+ VFS_KERNEL_DEBUG_END1(72, dvp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(73, vp);
MAC_CHECK(vnode_check_uipc_connect, cred, vp, vp->v_label, (socket_t) so);
- return (error);
+ VFS_KERNEL_DEBUG_END1(73, vp);
+ return error;
}
void
kauth_cred_t cred = vfs_context_ucred(ctx);
struct label *tmpl = NULL;
- if (vp->v_label == NULL)
+ if (vp->v_label == NULL) {
tmpl = mac_vnode_label_alloc();
+ }
vnode_lock(vp);
tmpl = NULL;
}
+ VFS_KERNEL_DEBUG_START1(74, vp);
MAC_PERFORM(vnode_label_update, cred, vp, vp->v_label, newlabel);
+ VFS_KERNEL_DEBUG_END1(74, vp);
vnode_unlock(vp);
- if (tmpl != NULL)
+ if (tmpl != NULL) {
mac_vnode_label_free(tmpl);
+ }
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_proc_enforce || !mac_vnode_enforce)
+ if (!mac_proc_enforce || !mac_vnode_enforce) {
return 0;
+ }
#endif
+ VFS_KERNEL_DEBUG_START1(75, vp);
MAC_CHECK(vnode_find_sigs, p, vp, offset, vp->v_label);
+ VFS_KERNEL_DEBUG_END1(75, vp);
- return (error);
+ return error;
}
void
/* XXX: eventually this logic may be handled by the policy? */
/* We desire MULTILABEL for the root filesystem. */
- if ((mp->mnt_flag & MNT_ROOTFS) &&
- (strcmp(mp->mnt_vfsstat.f_fstypename, "hfs") == 0))
+ if ((mp->mnt_flag & MNT_ROOTFS) &&
+ (strcmp(mp->mnt_vfsstat.f_fstypename, "hfs") == 0)) {
mp->mnt_flag |= MNT_MULTILABEL;
+ }
/* MULTILABEL on DEVFS. */
- if (strcmp(mp->mnt_vfsstat.f_fstypename, "devfs") == 0)
+ if (strcmp(mp->mnt_vfsstat.f_fstypename, "devfs") == 0) {
mp->mnt_flag |= MNT_MULTILABEL;
+ }
/* MULTILABEL on FDESC pseudo-filesystem. */
- if (strcmp(mp->mnt_vfsstat.f_fstypename, "fdesc") == 0)
+ if (strcmp(mp->mnt_vfsstat.f_fstypename, "fdesc") == 0) {
mp->mnt_flag |= MNT_MULTILABEL;
+ }
/* MULTILABEL on all NFS filesystems. */
- if (strcmp(mp->mnt_vfsstat.f_fstypename, "nfs") == 0)
+ if (strcmp(mp->mnt_vfsstat.f_fstypename, "nfs") == 0) {
mp->mnt_flag |= MNT_MULTILABEL;
+ }
/* MULTILABEL on all AFP filesystems. */
- if (strcmp(mp->mnt_vfsstat.f_fstypename, "afpfs") == 0)
+ if (strcmp(mp->mnt_vfsstat.f_fstypename, "afpfs") == 0) {
mp->mnt_flag |= MNT_MULTILABEL;
+ }
if (mp->mnt_vtable != NULL) {
/* Any filesystem that supports native XATTRs. */
- if ((mp->mnt_vtable->vfc_vfsflags & VFC_VFSNATIVEXATTR))
+ if ((mp->mnt_vtable->vfc_vfsflags & VFC_VFSNATIVEXATTR)) {
mp->mnt_flag |= MNT_MULTILABEL;
+ }
/* Filesystem does not support multilabel. */
if ((mp->mnt_vtable->vfc_vfsflags & VFC_VFSNOMACLABEL) &&
- (mp->mnt_flag & MNT_MULTILABEL))
+ (mp->mnt_flag & MNT_MULTILABEL)) {
mp->mnt_flag &= ~MNT_MULTILABEL;
+ }
}
+ VFS_KERNEL_DEBUG_START1(76, mp);
MAC_PERFORM(mount_label_associate, cred, mp, mp->mnt_mntlabel);
+ VFS_KERNEL_DEBUG_END1(76, mp);
#if DEBUG
printf("MAC Framework enabling %s support: %s -> %s (%s)\n",
- mp->mnt_flag & MNT_MULTILABEL ? "multilabel" : "singlelabel",
- mp->mnt_vfsstat.f_mntfromname,
- mp->mnt_vfsstat.f_mntonname,
- mp->mnt_vfsstat.f_fstypename);
+ mp->mnt_flag & MNT_MULTILABEL ? "multilabel" : "singlelabel",
+ mp->mnt_vfsstat.f_mntfromname,
+ mp->mnt_vfsstat.f_mntonname,
+ mp->mnt_vfsstat.f_fstypename);
#endif
}
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(77, vp);
+ MAC_CHECK(mount_check_mount, cred, vp, vp->v_label, cnp, vfc_name);
+ VFS_KERNEL_DEBUG_END1(77, vp);
+
+ return error;
+}
+int
+mac_mount_check_mount_late(vfs_context_t ctx, struct mount *mp)
+{
+ kauth_cred_t cred;
+ int error;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce) {
+ return 0;
+ }
+#endif
cred = vfs_context_ucred(ctx);
- MAC_CHECK(mount_check_mount, cred, vp, vp->v_label, cnp, vfc_name);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(78, mp);
+ MAC_CHECK(mount_check_mount_late, cred, mp);
+ VFS_KERNEL_DEBUG_END1(78, mp);
- return (error);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(79, mp);
MAC_CHECK(mount_check_snapshot_create, cred, mp, name);
- return (error);
+ VFS_KERNEL_DEBUG_END1(79, mp);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(80, mp);
+ MAC_CHECK(mount_check_snapshot_delete, cred, mp, name);
+ VFS_KERNEL_DEBUG_END1(80, mp);
+ return error;
+}
+int
+mac_mount_check_snapshot_mount(vfs_context_t ctx, struct vnode *rvp, struct vnode *vp, struct componentname *cnp,
+ const char *name, const char *vfc_name)
+{
+ kauth_cred_t cred;
+ int error;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce) {
+ return 0;
+ }
+#endif
cred = vfs_context_ucred(ctx);
- MAC_CHECK(mount_check_snapshot_delete, cred, mp, name);
- return (error);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(92, vp);
+ MAC_CHECK(mount_check_snapshot_mount, cred, rvp, vp, cnp, name, vfc_name);
+ VFS_KERNEL_DEBUG_END1(92, vp);
+ return error;
}
int
-mac_mount_check_remount(vfs_context_t ctx, struct mount *mp)
+mac_mount_check_snapshot_revert(vfs_context_t ctx, struct mount *mp,
+ const char *name)
{
kauth_cred_t cred;
int error;
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(81, mp);
+ MAC_CHECK(mount_check_snapshot_revert, cred, mp, name);
+ VFS_KERNEL_DEBUG_END1(81, mp);
+ return error;
+}
+int
+mac_mount_check_remount(vfs_context_t ctx, struct mount *mp)
+{
+ kauth_cred_t cred;
+ int error;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce) {
+ return 0;
+ }
+#endif
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(82, mp);
MAC_CHECK(mount_check_remount, cred, mp, mp->mnt_mntlabel);
+ VFS_KERNEL_DEBUG_END1(82, mp);
- return (error);
+ return error;
}
int
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(83, mp);
MAC_CHECK(mount_check_umount, cred, mp, mp->mnt_mntlabel);
+ VFS_KERNEL_DEBUG_END1(83, mp);
- return (error);
+ return error;
}
int
-mac_mount_check_getattr(vfs_context_t ctx, struct mount *mp,
+mac_mount_check_getattr(vfs_context_t ctx, struct mount *mp,
struct vfs_attr *vfa)
{
kauth_cred_t cred;
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(84, mp);
MAC_CHECK(mount_check_getattr, cred, mp, mp->mnt_mntlabel, vfa);
- return (error);
+ VFS_KERNEL_DEBUG_END1(84, mp);
+ return error;
}
int
-mac_mount_check_setattr(vfs_context_t ctx, struct mount *mp,
+mac_mount_check_setattr(vfs_context_t ctx, struct mount *mp,
struct vfs_attr *vfa)
{
kauth_cred_t cred;
#if SECURITY_MAC_CHECK_ENFORCE
/* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
+ if (!mac_vnode_enforce) {
return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(85, mp);
MAC_CHECK(mount_check_setattr, cred, mp, mp->mnt_mntlabel, vfa);
- return (error);
+ VFS_KERNEL_DEBUG_END1(85, mp);
+ return error;
}
int
int error;
#if SECURITY_MAC_CHECK_ENFORCE
- /* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
- return 0;
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce) {
+ return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(86, mount);
MAC_CHECK(mount_check_stat, cred, mount, mount->mnt_mntlabel);
+ VFS_KERNEL_DEBUG_END1(86, mount);
- return (error);
+ return error;
}
int
int error;
#if SECURITY_MAC_CHECK_ENFORCE
- /* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
- return 0;
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce) {
+ return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(87, mount);
MAC_CHECK(mount_check_label_update, cred, mount, mount->mnt_mntlabel);
+ VFS_KERNEL_DEBUG_END1(87, mount);
- return (error);
+ return error;
}
int
-mac_mount_check_fsctl(vfs_context_t ctx, struct mount *mp, u_int cmd)
+mac_mount_check_fsctl(vfs_context_t ctx, struct mount *mp, u_long cmd)
{
kauth_cred_t cred;
int error;
#if SECURITY_MAC_CHECK_ENFORCE
- /* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
- return 0;
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce) {
+ return 0;
+ }
#endif
- if (!mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return 0;
-
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred)) {
+ return 0;
+ }
+ VFS_KERNEL_DEBUG_START1(88, mp);
MAC_CHECK(mount_check_fsctl, cred, mp, mp->mnt_mntlabel, cmd);
+ VFS_KERNEL_DEBUG_END1(88, mp);
- return (error);
+ return error;
}
void
const char *fullpath)
{
#if SECURITY_MAC_CHECK_ENFORCE
- /* 21167099 - only check if we allow write */
- if (!mac_device_enforce)
- return;
+ /* 21167099 - only check if we allow write */
+ if (!mac_device_enforce) {
+ return;
+ }
#endif
+ VFS_KERNEL_DEBUG_START1(89, de);
MAC_PERFORM(devfs_label_associate_device, dev, de, de->dn_label,
fullpath);
+ VFS_KERNEL_DEBUG_END1(89, de);
}
void
struct devnode *de, const char *fullpath)
{
#if SECURITY_MAC_CHECK_ENFORCE
- /* 21167099 - only check if we allow write */
- if (!mac_device_enforce)
- return;
+ /* 21167099 - only check if we allow write */
+ if (!mac_device_enforce) {
+ return;
+ }
#endif
+ VFS_KERNEL_DEBUG_START1(90, de);
MAC_PERFORM(devfs_label_associate_directory, dirname, dirnamelen, de,
de->dn_label, fullpath);
+ VFS_KERNEL_DEBUG_END1(90, de);
}
int
int error;
#if SECURITY_MAC_CHECK_ENFORCE
- /* 21167099 - only check if we allow write */
- if (!mac_vnode_enforce)
- return 0;
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce) {
+ return 0;
+ }
#endif
- if (!mac_label_vnodes)
- return (0);
+ if (!mac_label_vnodes) {
+ return 0;
+ }
if (vp->v_mount == NULL) {
printf("vn_setlabel: null v_mount\n");
- if (vp->v_type != VNON)
+ if (vp->v_type != VNON) {
printf("vn_setlabel: null v_mount with non-VNON\n");
- return (EBADF);
+ }
+ return EBADF;
}
- if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0)
- return (ENOTSUP);
+ if ((vp->v_mount->mnt_flag & MNT_MULTILABEL) == 0) {
+ return ENOTSUP;
+ }
/*
* Multi-phase commit. First check the policies to confirm the
* should update the vnode at the end as part of VNOP_SETLABEL()?
*/
error = mac_vnode_check_label_update(context, vp, intlabel);
- if (error)
- return (error);
+ if (error) {
+ return error;
+ }
error = VNOP_SETLABEL(vp, intlabel, context);
if (error == ENOTSUP) {
error = mac_vnode_label_store(context, vp,
- intlabel);
+ intlabel);
if (error) {
printf("%s: mac_vnode_label_store failed %d\n",
- __func__, error);
- return (error);
+ __func__, error);
+ return error;
}
mac_vnode_label_update(context, vp, intlabel);
- } else
- if (error) {
+ } else if (error) {
printf("vn_setlabel: vop setlabel failed %d\n", error);
- return (error);
+ return error;
}
- return (0);
+ return 0;
}
int
error = 0;
+ VFS_KERNEL_DEBUG_START1(91, vp);
/*
* If no backing file, let the policy choose which label to use.
*/
if (fnp->fd_fd == -1) {
MAC_PERFORM(vnode_label_associate_file, vfs_context_ucred(ctx),
mp, mp->mnt_mntlabel, NULL, NULL, vp, vp->v_label);
- return (0);
+ VFS_KERNEL_DEBUG_END1(91, vp);
+ return 0;
}
p = vfs_context_proc(ctx);
error = fp_lookup(p, fnp->fd_fd, &fp, 0);
- if (error)
- return (error);
+ if (error) {
+ VFS_KERNEL_DEBUG_END1(91, vp);
+ return error;
+ }
- if (fp->f_fglob == NULL) {
+ if (fp->fp_glob == NULL) {
error = EBADF;
goto out;
}
- switch (FILEGLOB_DTYPE(fp->f_fglob)) {
+ switch (FILEGLOB_DTYPE(fp->fp_glob)) {
case DTYPE_VNODE:
- fvp = (struct vnode *)fp->f_fglob->fg_data;
- if ((error = vnode_getwithref(fvp)))
+ fvp = (struct vnode *)fp->fp_glob->fg_data;
+ if ((error = vnode_getwithref(fvp))) {
goto out;
- MAC_PERFORM(vnode_label_copy, fvp->v_label, vp->v_label);
+ }
+ if (fvp->v_label != NULL) {
+ if (mac_label_vnodes != 0 && vp->v_label == NULL) {
+ mac_vnode_label_init(vp); /* init dst label */
+ }
+ MAC_PERFORM(vnode_label_copy, fvp->v_label, vp->v_label);
+ }
(void)vnode_put(fvp);
break;
#if CONFIG_MACF_SOCKET_SUBSET
case DTYPE_SOCKET:
- so = (struct socket *)fp->f_fglob->fg_data;
+ so = (struct socket *)fp->fp_glob->fg_data;
socket_lock(so, 1);
MAC_PERFORM(vnode_label_associate_socket,
- vfs_context_ucred(ctx), (socket_t)so, so->so_label,
+ vfs_context_ucred(ctx), (socket_t)so, so->so_label,
vp, vp->v_label);
socket_unlock(so, 1);
break;
psem_label_associate(fp, vp, ctx);
break;
case DTYPE_PIPE:
- cpipe = (struct pipe *)fp->f_fglob->fg_data;
+ cpipe = (struct pipe *)fp->fp_glob->fg_data;
/* kern/sys_pipe.c:pipe_select() suggests this test. */
if (cpipe == (struct pipe *)-1) {
error = EINVAL;
case DTYPE_NETPOLICY:
default:
MAC_PERFORM(vnode_label_associate_file, vfs_context_ucred(ctx),
- mp, mp->mnt_mntlabel, fp->f_fglob, fp->f_fglob->fg_label,
+ mp, mp->mnt_mntlabel, fp->fp_glob, fp->fp_glob->fg_label,
vp, vp->v_label);
break;
}
out:
+ VFS_KERNEL_DEBUG_END1(91, vp);
fp_drop(p, fnp->fd_fd, fp, 0);
- return (error);
+ return error;
+}
+
+intptr_t
+mac_vnode_label_get(struct vnode *vp, int slot, intptr_t sentinel)
+{
+ struct label *l;
+
+ KASSERT(vp != NULL, ("mac_vnode_label_get: NULL vnode"));
+ l = vp->v_label;
+ if (l != NULL) {
+ return mac_label_get(l, slot);
+ } else {
+ return sentinel;
+ }
+}
+
+void
+mac_vnode_label_set(struct vnode *vp, int slot, intptr_t v)
+{
+ struct label *l;
+ KASSERT(vp != NULL, ("mac_vnode_label_set: NULL vnode"));
+ l = vp->v_label;
+ if (l == NULL) {
+ mac_vnode_label_init(vp);
+ l = vp->v_label;
+ }
+ mac_label_set(l, slot, v);
+}
+
+void
+mac_vnode_notify_reclaim(struct vnode *vp)
+{
+ VFS_KERNEL_DEBUG_START1(94, vp);
+ MAC_PERFORM(vnode_notify_reclaim, vp);
+ VFS_KERNEL_DEBUG_END1(94, vp);
}
projects / apple / xnu.git / blobdiff