/*
- * Copyright (c) 2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2007-2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
*
*/
+#include <kern/kalloc.h>
+
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/pipe.h>
#include <sys/posix_sem.h>
#include <sys/posix_shm.h>
+#include <sys/reason.h>
#include <sys/uio_internal.h>
#include <sys/vnode_internal.h>
#include <miscfs/devfs/devfsdefs.h>
-#include <miscfs/fdesc/fdesc.h>
+#include <miscfs/devfs/fdesc.h>
#include <security/mac_internal.h>
void
mac_vnode_label_init(vnode_t vp)
{
-
vp->v_label = mac_vnode_label_alloc();
}
+int
+mac_vnode_label_init_needed(vnode_t vp)
+{
+ return (mac_label_vnodes != 0 && vp->v_label == NULL);
+}
+
/*
* 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
void
mac_mount_label_destroy(struct mount *mp)
{
-
-
if (mp->mnt_mntlabel != NULL) {
mac_mount_label_free(mp->mnt_mntlabel);
mp->mnt_mntlabel = NULL;
void
mac_vnode_label_free(struct label *label)
{
-
MAC_PERFORM(vnode_label_destroy, label);
mac_labelzone_free(label);
}
void
mac_vnode_label_destroy(struct vnode *vp)
{
-
- mac_vnode_label_free(vp->v_label);
- vp->v_label = NULL;
+ if (vp->v_label != NULL) {
+ mac_vnode_label_free(vp->v_label);
+ vp->v_label = NULL;
+ }
}
#endif
void
mac_vnode_label_copy(struct label *src, struct label *dest)
{
-
- MAC_PERFORM(vnode_label_copy, src, dest);
+ if (src == NULL) {
+ MAC_PERFORM(vnode_label_init, dest);
+ } else {
+ MAC_PERFORM(vnode_label_copy, src, dest);
+ }
}
int
void
mac_devfs_label_copy(struct label *src, struct label *dest)
{
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
if (!mac_device_enforce)
return;
+#endif
MAC_PERFORM(devfs_label_copy, src, dest);
}
mac_devfs_label_update(struct mount *mp, struct devnode *de,
struct vnode *vp)
{
-
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
if (!mac_device_enforce)
return;
+#endif
MAC_PERFORM(devfs_label_update, mp, de, de->dn_label, vp,
vp->v_label);
struct fdescnode *fnp;
int error = 0;
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
if (!mac_vnode_enforce)
return (error);
+#endif
/* XXX: should not inspect v_tag in kernel! */
switch (vp->v_tag) {
mac_vnode_label_associate_devfs(struct mount *mp, struct devnode *de,
struct vnode *vp)
{
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
if (!mac_device_enforce)
return;
+#endif
MAC_PERFORM(vnode_label_associate_devfs,
mp, mp ? mp->mnt_mntlabel : NULL,
void
mac_vnode_label_associate_singlelabel(struct mount *mp, struct vnode *vp)
{
-
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
if (!mac_vnode_enforce)
return;
+#endif
+ if (!mac_label_vnodes)
+ return;
MAC_PERFORM(vnode_label_associate_singlelabel, mp,
mp ? mp->mnt_mntlabel : NULL, vp, vp->v_label);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+#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);
MAC_CHECK(vnode_notify_create, cred, mp, mp->mnt_mntlabel,
dvp, dvp->v_label, vp, vp->v_label, cnp);
return (error);
}
+void
+mac_vnode_notify_rename(vfs_context_t ctx, struct vnode *vp,
+ 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)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_rename, cred, vp, vp->v_label,
+ dvp, dvp->v_label, cnp);
+}
+
+void
+mac_vnode_notify_open(vfs_context_t ctx, struct vnode *vp, int acc_flags)
+{
+ kauth_cred_t cred;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_open, cred, vp, vp->v_label, acc_flags);
+}
+
+void
+mac_vnode_notify_link(vfs_context_t ctx, struct vnode *vp,
+ 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)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_link, cred, dvp, dvp->v_label, vp, vp->v_label, cnp);
+}
+
+void
+mac_vnode_notify_deleteextattr(vfs_context_t ctx, struct vnode *vp, const char *name)
+{
+ kauth_cred_t cred;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_deleteextattr, cred, vp, vp->v_label, name);
+}
+
+void
+mac_vnode_notify_setacl(vfs_context_t ctx, struct vnode *vp, struct kauth_acl *acl)
+{
+ kauth_cred_t cred;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_setacl, cred, vp, vp->v_label, acl);
+}
+
+void
+mac_vnode_notify_setattrlist(vfs_context_t ctx, struct vnode *vp, struct attrlist *alist)
+{
+ kauth_cred_t cred;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_setattrlist, cred, vp, vp->v_label, alist);
+}
+
+void
+mac_vnode_notify_setextattr(vfs_context_t ctx, struct vnode *vp, const char *name, struct uio *uio)
+{
+ kauth_cred_t cred;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_setextattr, cred, vp, vp->v_label, name, uio);
+}
+
+void
+mac_vnode_notify_setflags(vfs_context_t ctx, struct vnode *vp, u_long flags)
+{
+ kauth_cred_t cred;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_setflags, cred, vp, vp->v_label, flags);
+}
+
+void
+mac_vnode_notify_setmode(vfs_context_t ctx, struct vnode *vp, mode_t mode)
+{
+ kauth_cred_t cred;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_setmode, cred, vp, vp->v_label, mode);
+}
+
+void
+mac_vnode_notify_setowner(vfs_context_t ctx, struct vnode *vp, uid_t uid, gid_t gid)
+{
+ kauth_cred_t cred;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_setowner, cred, vp, vp->v_label, uid, gid);
+}
+
+void
+mac_vnode_notify_setutimes(vfs_context_t ctx, struct vnode *vp, struct timespec atime, struct timespec mtime)
+{
+ kauth_cred_t cred;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_setutimes, cred, vp, vp->v_label, atime, mtime);
+}
+
+void
+mac_vnode_notify_truncate(vfs_context_t ctx, kauth_cred_t file_cred, struct vnode *vp)
+{
+ kauth_cred_t cred;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce)
+ return;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return;
+ MAC_PERFORM(vnode_notify_truncate, cred, file_cred, vp, vp->v_label);
+}
+
/*
* Extended attribute 'name' was updated via
* vn_setxattr() or vn_removexattr(). Allow the
{
int error = 0;
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
if (!mac_vnode_enforce)
return;
+#endif
+ if (!mac_label_vnodes)
+ return;
MAC_PERFORM(vnode_label_update_extattr, mp, mp->mnt_mntlabel, vp,
vp->v_label, name);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce &&
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vnode_enforce)
+ return 0;
+#endif
+ if (!mac_label_vnodes)
return 0;
cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return (0);
MAC_CHECK(vnode_label_store, cred, vp, vp->v_label, intlabel);
return (error);
}
-int
-mac_cred_label_update_execve(vfs_context_t ctx, kauth_cred_t new, struct vnode *vp,
- struct label *scriptvnodelabel, struct label *execl)
+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)
{
kauth_cred_t cred;
- int disjoint = 0;
+ *disjoint = 0;
+ int error;
+ posix_cred_t pcred = posix_cred_get(new);
- if (!mac_proc_enforce && !mac_vnode_enforce)
- return disjoint;
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce || !mac_vnode_enforce)
+ return;
+#endif
/* mark the new cred to indicate "matching" includes the label */
- new->cr_flags |= CRF_MAC_ENFORCE;
+ pcred->cr_flags |= CRF_MAC_ENFORCE;
cred = vfs_context_ucred(ctx);
- MAC_PERFORM(cred_label_update_execve, cred, new, vp, vp->v_label,
- scriptvnodelabel, execl, &disjoint);
- return (disjoint);
+ /*
+ * NB: Cannot use MAC_CHECK macro because we need a sequence point after
+ * calling exec_spawnattr_getmacpolicyinfo() and before passing the
+ * spawnattrlen as an argument to the hook.
+ */
+ {
+ struct mac_policy_conf *mpc;
+ u_int i;
+
+ error = 0;
+ for (i = 0; i< mac_policy_list.staticmax; i++) {
+ mpc = mac_policy_list.entries[i].mpc;
+ if (mpc == NULL)
+ continue;
+
+ mpo_cred_label_update_execve_t *hook = mpc->mpc_ops->mpo_cred_label_update_execve;
+ 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);
+ }
+ if (mac_policy_list_conditional_busy() != 0) {
+ for (; i <= mac_policy_list.maxindex; i++) {
+ mpc = mac_policy_list.entries[i].mpc;
+ if (mpc == NULL)
+ continue;
+
+ mpo_cred_label_update_execve_t *hook = mpc->mpc_ops->mpo_cred_label_update_execve;
+ 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);
+ }
+ mac_policy_list_unbusy();
+ }
+ }
+ *labelupdateerror = error;
}
int
-mac_cred_check_label_update_execve(vfs_context_t ctx, struct vnode *vp,
- struct label *scriptvnodelabel, struct label *execlabel, struct proc *p)
+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)
{
kauth_cred_t cred;
int result = 0;
- if (!mac_proc_enforce && !mac_vnode_enforce)
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce || !mac_vnode_enforce)
return result;
+#endif
cred = vfs_context_ucred(ctx);
- MAC_BOOLEAN(cred_check_label_update_execve, ||, cred, vp, vp->v_label,
- scriptvnodelabel, execlabel, p);
+
+ /*
+ * NB: Cannot use MAC_BOOLEAN macro because we need a sequence point after
+ * calling exec_spawnattr_getmacpolicyinfo() and before passing the
+ * spawnattrlen as an argument to the hook.
+ */
+ {
+ struct mac_policy_conf *mpc;
+ u_int i;
+
+ for (i = 0; i< mac_policy_list.staticmax; i++) {
+ mpc = mac_policy_list.entries[i].mpc;
+ if (mpc == NULL)
+ continue;
+
+ mpo_cred_check_label_update_execve_t *hook = mpc->mpc_ops->mpo_cred_check_label_update_execve;
+ 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) {
+ for (; i <= mac_policy_list.maxindex; i++) {
+ mpc = mac_policy_list.entries[i].mpc;
+ if (mpc == NULL)
+ continue;
+
+ mpo_cred_check_label_update_execve_t *hook = mpc->mpc_ops->mpo_cred_check_label_update_execve;
+ 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);
+ }
+ mac_policy_list_unbusy();
+ }
+ }
return (result);
}
int error;
int mask;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+#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);
/* Convert {R,W,X}_OK values to V{READ,WRITE,EXEC} for entry points */
mask = ACCESS_MODE_TO_VNODE_MASK(acc_mode);
MAC_CHECK(vnode_check_access, cred, vp, vp->v_label, mask);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_chdir, cred, dvp, dvp->v_label);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_chroot, cred, dvp, dvp->v_label, cnp);
return (error);
}
int
-mac_vnode_check_create(vfs_context_t ctx, struct vnode *dvp,
- struct componentname *cnp, struct vnode_attr *vap)
+mac_vnode_check_clone(vfs_context_t ctx, struct vnode *dvp,
+ struct vnode *vp, struct componentname *cnp)
{
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+#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);
+ MAC_CHECK(vnode_check_clone, cred, dvp, dvp->v_label, vp,
+ vp->v_label, cnp);
+ return (error);
+}
+int
+mac_vnode_check_create(vfs_context_t ctx, struct vnode *dvp,
+ struct componentname *cnp, struct vnode_attr *vap)
+{
+ 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);
MAC_CHECK(vnode_check_create, cred, dvp, dvp->v_label, cnp, vap);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_unlink, cred, dvp, dvp->v_label, vp,
vp->v_label, cnp);
return (error);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_deleteacl, cred, vp, vp->v_label, type);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_deleteextattr, cred, vp, vp->v_label, name);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_exchangedata, cred, v1, v1->v_label,
v2, v2->v_label);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_getacl, cred, vp, vp->v_label, type);
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 (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+#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);
+ MAC_CHECK(vnode_check_getattr, cred, file_cred, vp, vp->v_label, va);
+ 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);
MAC_CHECK(vnode_check_getattrlist, cred, vp, vp->v_label, alist);
/* Falsify results instead of returning error? */
struct image_params *imgp)
{
kauth_cred_t cred;
- int error;
+ int error = 0;
- if (!mac_vnode_enforce || !mac_proc_enforce)
- return (0);
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce || !mac_vnode_enforce)
+ return 0;
+#endif
cred = vfs_context_ucred(ctx);
- MAC_CHECK(vnode_check_exec, cred, vp, vp->v_label,
- (imgp != NULL) ? imgp->ip_execlabelp : NULL,
- (imgp != NULL) ? &imgp->ip_ndp->ni_cnd : NULL,
- (imgp != NULL) ? &imgp->ip_csflags : NULL);
+
+ /*
+ * NB: Cannot use MAC_CHECK macro because we need a sequence point after
+ * calling exec_spawnattr_getmacpolicyinfo() and before passing the
+ * spawnattrlen as an argument to the hook.
+ */
+ {
+ struct mac_policy_conf *mpc;
+ u_int i;
+
+ for (i = 0; i< mac_policy_list.staticmax; i++) {
+ mpc = mac_policy_list.entries[i].mpc;
+ if (mpc == NULL)
+ continue;
+
+ mpo_vnode_check_exec_t *hook = mpc->mpc_ops->mpo_vnode_check_exec;
+ 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);
+ }
+ if (mac_policy_list_conditional_busy() != 0) {
+ for (; i <= mac_policy_list.maxindex; i++) {
+ mpc = mac_policy_list.entries[i].mpc;
+ if (mpc == NULL)
+ continue;
+
+ mpo_vnode_check_exec_t *hook = mpc->mpc_ops->mpo_vnode_check_exec;
+ 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);
+ }
+ mac_policy_list_unbusy();
+ }
+ }
+
return (error);
}
int
-mac_vnode_check_signature(struct vnode *vp, unsigned char *sha1,
- void * signature, size_t size)
+mac_vnode_check_fsgetpath(vfs_context_t ctx, struct vnode *vp)
{
+ kauth_cred_t cred;
int error;
-
- if (!mac_vnode_enforce || !mac_proc_enforce)
+
+#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);
-
- MAC_CHECK(vnode_check_signature, vp, vp->v_label, sha1, signature, size);
+ MAC_CHECK(vnode_check_fsgetpath, cred, vp, vp->v_label);
return (error);
}
+int
+mac_vnode_check_signature(struct vnode *vp, struct cs_blob *cs_blob,
+ struct image_params *imgp,
+ unsigned int *cs_flags, unsigned int *signer_type,
+ int flags)
+{
+ int error;
+ char *fatal_failure_desc = NULL;
+ size_t fatal_failure_desc_len = 0;
+
+ char *vn_path = NULL;
+ vm_size_t vn_pathlen = MAXPATHLEN;
+
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 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, signer_type, flags, &fatal_failure_desc, &fatal_failure_desc_len);
+
+ if (fatal_failure_desc_len) {
+ // A fatal code signature validation failure occured, formulate a crash
+ // reason.
+
+ 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_noblock(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);
+ }
+
+ }
+ }
+
+out:
+ if (vn_path) {
+ kfree(vn_path, MAXPATHLEN);
+ }
+
+ if (fatal_failure_desc_len > 0 && fatal_failure_desc != NULL) {
+ kfree(fatal_failure_desc, fatal_failure_desc_len);
+ }
+
+ return (error);
+}
+
#if 0
int
mac_vnode_check_getacl(vfs_context_t ctx, struct vnode *vp, acl_type_t type)
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_getacl, cred, vp, vp->v_label, type);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_getextattr, cred, vp, vp->v_label,
name, uio);
return (error);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_ioctl, cred, vp, vp->v_label, cmd);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_kqfilter, cred, file_cred, kn, vp,
vp->v_label);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_link, cred, dvp, dvp->v_label, vp,
vp->v_label, cnp);
return (error);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+#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);
+ MAC_CHECK(vnode_check_listextattr, cred, vp, vp->v_label);
+ 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);
+ if (!mac_cred_check_enforce(cred))
+ return (0);
+ MAC_CHECK(vnode_check_lookup_preflight, cred, dvp, dvp->v_label, path, pathlen);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_lookup, cred, dvp, dvp->v_label, cnp);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_open, cred, vp, vp->v_label, acc_mode);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_read, cred, file_cred, vp,
vp->v_label);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_readdir, cred, dvp, dvp->v_label);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_readlink, cred, vp, vp->v_label);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_label_update, cred, vp, vp->v_label, newlabel);
return (error);
}
int
-mac_vnode_check_rename_from(vfs_context_t ctx, struct vnode *dvp,
- struct vnode *vp, struct componentname *cnp)
+mac_vnode_check_rename(vfs_context_t ctx, struct vnode *dvp,
+ struct vnode *vp, struct componentname *cnp, struct vnode *tdvp,
+ struct vnode *tvp, struct componentname *tcnp)
{
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+#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);
- cred = vfs_context_ucred(ctx);
MAC_CHECK(vnode_check_rename_from, cred, dvp, dvp->v_label, vp,
vp->v_label, cnp);
+ if (error)
+ 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);
+
+ 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);
}
int
-mac_vnode_check_rename_to(vfs_context_t ctx, struct vnode *dvp,
- struct vnode *vp, int samedir, struct componentname *cnp)
+mac_vnode_check_revoke(vfs_context_t ctx, struct vnode *vp)
{
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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_rename_to, cred, dvp, dvp->v_label, vp,
- vp != NULL ? vp->v_label : NULL, samedir, cnp);
+ if (!mac_cred_check_enforce(cred))
+ return (0);
+ MAC_CHECK(vnode_check_revoke, cred, vp, vp->v_label);
return (error);
}
int
-mac_vnode_check_revoke(vfs_context_t ctx, struct vnode *vp)
+mac_vnode_check_searchfs(vfs_context_t ctx, struct vnode *vp, struct attrlist *alist)
{
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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_revoke, cred, vp, vp->v_label);
+ if (!mac_cred_check_enforce(cred))
+ return (0);
+ MAC_CHECK(vnode_check_searchfs, cred, vp, vp->v_label, alist);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_select, cred, vp, vp->v_label, which);
return (error);
}
-#if 0
int
-mac_vnode_check_setacl(vfs_context_t ctx, struct vnode *vp, acl_type_t type,
- struct acl *acl)
+mac_vnode_check_setacl(vfs_context_t ctx, struct vnode *vp,
+ struct kauth_acl *acl)
{
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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_setacl, cred, vp, vp->v_label, type, acl);
+ if (!mac_cred_check_enforce(cred))
+ return (0);
+ MAC_CHECK(vnode_check_setacl, cred, vp, vp->v_label, acl);
return (error);
}
-#endif
int
mac_vnode_check_setattrlist(vfs_context_t ctx, struct vnode *vp,
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_setattrlist, cred, vp, vp->v_label, alist);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_setextattr, cred, vp, vp->v_label,
name, uio);
return (error);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_setflags, cred, vp, vp->v_label, flags);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_setmode, cred, vp, vp->v_label, mode);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_setowner, cred, vp, vp->v_label, uid, gid);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_setutimes, cred, vp, vp->v_label, atime,
mtime);
return (error);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_stat, cred, file_cred, vp,
vp->v_label);
return (error);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(vnode_check_truncate, cred, file_cred, vp,
vp->v_label);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+#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);
+ MAC_CHECK(vnode_check_write, cred, file_cred, vp, vp->v_label);
+
+ return (error);
+}
+
+int
+mac_vnode_check_uipc_bind(vfs_context_t ctx, struct vnode *dvp,
+ struct componentname *cnp, struct vnode_attr *vap)
+{
+ 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_write, cred, file_cred, vp, vp->v_label);
+ if (!mac_cred_check_enforce(cred))
+ return (0);
+ MAC_CHECK(vnode_check_uipc_bind, cred, dvp, dvp->v_label, cnp, vap);
+ return (error);
+}
+
+int
+mac_vnode_check_uipc_connect(vfs_context_t ctx, struct vnode *vp, struct socket *so)
+{
+ 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);
+ MAC_CHECK(vnode_check_uipc_connect, cred, vp, vp->v_label, (socket_t) so);
return (error);
}
mac_vnode_label_update(vfs_context_t ctx, struct vnode *vp, struct label *newlabel)
{
kauth_cred_t cred = vfs_context_ucred(ctx);
+ struct label *tmpl = NULL;
+
+ if (vp->v_label == NULL)
+ tmpl = mac_vnode_label_alloc();
vnode_lock(vp);
+
+ /* recheck after lock */
+ if (vp->v_label == NULL) {
+ vp->v_label = tmpl;
+ tmpl = NULL;
+ }
+
MAC_PERFORM(vnode_label_update, cred, vp, vp->v_label, newlabel);
vnode_unlock(vp);
+
+ if (tmpl != NULL)
+ mac_vnode_label_free(tmpl);
+}
+
+int
+mac_vnode_find_sigs(struct proc *p, struct vnode *vp, off_t offset)
+{
+ int error;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce || !mac_vnode_enforce)
+ return 0;
+#endif
+
+ MAC_CHECK(vnode_find_sigs, p, vp, offset, vp->v_label);
+
+ return (error);
}
void
}
MAC_PERFORM(mount_label_associate, cred, mp, mp->mnt_mntlabel);
-#if MAC_DEBUG
+#if DEBUG
printf("MAC Framework enabling %s support: %s -> %s (%s)\n",
mp->mnt_flag & MNT_MULTILABEL ? "multilabel" : "singlelabel",
mp->mnt_vfsstat.f_mntfromname,
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+#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);
+ MAC_CHECK(mount_check_mount, cred, vp, vp->v_label, cnp, vfc_name);
+
+ return (error);
+}
+
+int
+mac_mount_check_snapshot_create(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)
+ 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);
+ MAC_CHECK(mount_check_snapshot_create, cred, mp, name);
+ return (error);
+}
+
+int
+mac_mount_check_snapshot_delete(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)
+ return 0;
+#endif
+ cred = vfs_context_ucred(ctx);
+ if (!mac_cred_check_enforce(cred))
+ return (0);
+ MAC_CHECK(mount_check_snapshot_delete, cred, mp, name);
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 (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
+#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);
+ MAC_CHECK(mount_check_snapshot_revert, cred, mp, name);
+ 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);
MAC_CHECK(mount_check_remount, cred, mp, mp->mnt_mntlabel);
return (error);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(mount_check_umount, cred, mp, mp->mnt_mntlabel);
return (error);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(mount_check_getattr, cred, mp, mp->mnt_mntlabel, vfa);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(mount_check_setattr, cred, mp, mp->mnt_mntlabel, vfa);
return (error);
}
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(mount_check_stat, cred, mount, mount->mnt_mntlabel);
return (error);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(mount_check_label_update, cred, mount, mount->mnt_mntlabel);
return (error);
kauth_cred_t cred;
int error;
- if (!mac_vnode_enforce ||
- !mac_context_check_enforce(ctx, MAC_VNODE_ENFORCE))
- return (0);
-
+#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);
MAC_CHECK(mount_check_fsctl, cred, mp, mp->mnt_mntlabel, cmd);
return (error);
mac_devfs_label_associate_device(dev_t dev, struct devnode *de,
const char *fullpath)
{
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
if (!mac_device_enforce)
return;
+#endif
MAC_PERFORM(devfs_label_associate_device, dev, de, de->dn_label,
fullpath);
mac_devfs_label_associate_directory(const char *dirname, int dirnamelen,
struct devnode *de, const char *fullpath)
{
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
if (!mac_device_enforce)
return;
+#endif
MAC_PERFORM(devfs_label_associate_directory, dirname, dirnamelen, de,
de->dn_label, fullpath);
{
int error;
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
if (!mac_vnode_enforce)
+ return 0;
+#endif
+ if (!mac_label_vnodes)
return (0);
if (vp->v_mount == NULL) {
struct vnode *vp, vfs_context_t ctx)
{
struct fileproc *fp;
+#if CONFIG_MACF_SOCKET_SUBSET
struct socket *so;
+#endif
struct pipe *cpipe;
struct vnode *fvp;
struct proc *p;
goto out;
}
- switch (fp->f_fglob->fg_type) {
+ switch (FILEGLOB_DTYPE(fp->f_fglob)) {
case DTYPE_VNODE:
fvp = (struct vnode *)fp->f_fglob->fg_data;
if ((error = vnode_getwithref(fvp)))
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;
socket_lock(so, 1);
vp, vp->v_label);
socket_unlock(so, 1);
break;
+#endif
case DTYPE_PSXSHM:
pshm_label_associate(fp, vp, ctx);
break;
break;
case DTYPE_KQUEUE:
case DTYPE_FSEVENTS:
+ case DTYPE_ATALK:
+ 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,
projects / apple / xnu.git / blobdiff