/*
- * Copyright (c) 2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2007-2010 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 <sys/proc_internal.h>
#include <sys/kauth.h>
#include <sys/imgact.h>
+#include <mach/mach_types.h>
+#include <kern/task.h>
#include <security/mac_internal.h>
+#include <security/mac_mach_internal.h>
-#include <bsd/bsm/audit_kernel.h>
+#include <bsd/security/audit/audit.h>
struct label *
mac_cred_label_alloc(void)
struct label *label;
label = mac_labelzone_alloc(MAC_WAITOK);
- if (label == NULL)
- return (NULL);
+ if (label == NULL) {
+ return NULL;
+ }
MAC_PERFORM(cred_label_init, label);
- return (label);
+ return label;
}
void
mac_labelzone_free(label);
}
+int
+mac_cred_label_compare(struct label *a, struct label *b)
+{
+ return bcmp(a, b, sizeof(*a)) == 0;
+}
+
int
mac_cred_label_externalize_audit(struct proc *p, struct mac *mac)
{
mac->m_string, mac->m_buflen);
kauth_cred_unref(&cr);
- return (error);
+ return error;
}
void
mac_cred_label_destroy(kauth_cred_t cred)
{
-
mac_cred_label_free(cred->cr_label);
cred->cr_label = NULL;
}
error = MAC_EXTERNALIZE(cred, label, elements, outbuf, outbuflen);
- return (error);
+ return error;
}
int
error = MAC_INTERNALIZE(cred, label, string);
- return (error);
+ return error;
}
/*
{
MAC_PERFORM(cred_label_associate_fork, cred, proc);
}
-
+
/*
* Initialize MAC label for the first kernel process, from which other
* kernel processes and threads are spawned.
void
mac_cred_label_associate_kernel(kauth_cred_t cred)
{
-
MAC_PERFORM(cred_label_associate_kernel, cred);
}
void
mac_cred_label_associate_user(kauth_cred_t cred)
{
-
MAC_PERFORM(cred_label_associate_user, cred);
}
void
mac_cred_label_associate(struct ucred *parent_cred, struct ucred *child_cred)
{
-
MAC_PERFORM(cred_label_associate, parent_cred, child_cred);
}
int error;
size_t ulen;
- if (mac_p == USER_ADDR_NULL)
- return (0);
+ if (mac_p == USER_ADDR_NULL) {
+ return 0;
+ }
if (IS_64BIT_PROCESS(current_proc())) {
- error = copyin(mac_p, &mac, sizeof(mac));
+ struct user64_mac mac64;
+ error = copyin(mac_p, &mac64, sizeof(mac64));
+ mac.m_buflen = mac64.m_buflen;
+ mac.m_string = mac64.m_string;
} else {
- struct mac mac32;
+ struct user32_mac mac32;
error = copyin(mac_p, &mac32, sizeof(mac32));
mac.m_buflen = mac32.m_buflen;
- mac.m_string = CAST_USER_ADDR_T(mac32.m_string);
+ mac.m_string = mac32.m_string;
+ }
+ if (error) {
+ return error;
}
- if (error)
- return (error);
error = mac_check_structmac_consistent(&mac);
- if (error)
- return (error);
+ if (error) {
+ return error;
+ }
execlabel = mac_cred_label_alloc();
MALLOC(buffer, char *, mac.m_buflen, M_MACTEMP, M_WAITOK);
error = copyinstr(CAST_USER_ADDR_T(mac.m_string), buffer, mac.m_buflen, &ulen);
- if (error)
+ if (error) {
goto out;
+ }
AUDIT_ARG(mac_string, buffer);
error = mac_cred_label_internalize(execlabel, buffer);
}
imgp->ip_execlabelp = execlabel;
FREE(buffer, M_MACTEMP);
- return (error);
+ return error;
}
/*
* When the subject's label changes, it may require revocation of privilege
* to mapped objects. This can't be done on-the-fly later with a unified
* buffer cache.
+ *
+ * XXX: CRF_MAC_ENFORCE should be in a kauth_cred_t field, rather
+ * XXX: than a posix_cred_t field.
*/
void
mac_cred_label_update(kauth_cred_t cred, struct label *newlabel)
{
+ posix_cred_t pcred = posix_cred_get(cred);
/* force label to be part of "matching" for credential */
- cred->cr_flags |= CRF_MAC_ENFORCE;
+ pcred->cr_flags |= CRF_MAC_ENFORCE;
/* inform the policies of the update */
MAC_PERFORM(cred_label_update, cred, newlabel);
{
int error;
- if (!mac_proc_enforce)
- return (0);
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
MAC_CHECK(cred_check_label_update, cred, newlabel);
- return (error);
+ return error;
}
int
{
int error;
-
-
- if (!mac_proc_enforce)
- return (0);
-
-
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
MAC_CHECK(cred_check_visible, u1, u2);
-
- return (error);
-}
-
-/*
- * called with process locked.
- */
-void mac_proc_set_enforce(proc_t p, int enforce_flags)
-{
- p->p_mac_enforce |= enforce_flags;
+ return error;
}
int
kauth_cred_t cred;
int error;
-
-
- if (!mac_proc_enforce ||
- !mac_proc_check_enforce(curp, MAC_PROC_ENFORCE))
- return (0);
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(curp)) {
+ return 0;
+ }
cred = kauth_cred_proc_ref(curp);
MAC_CHECK(proc_check_debug, cred, proc);
kauth_cred_unref(&cred);
- return (error);
+ return error;
+}
+
+int
+mac_proc_check_dump_core(struct proc *proc)
+{
+ int error;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(proc)) {
+ return 0;
+ }
+
+ MAC_CHECK(proc_check_dump_core, proc);
+
+ return error;
}
int
kauth_cred_t cred;
int error;
- if (!mac_proc_enforce ||
- !mac_proc_check_enforce(curp, MAC_PROC_ENFORCE))
- return (0);
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(curp)) {
+ return 0;
+ }
cred = kauth_cred_proc_ref(curp);
MAC_CHECK(proc_check_fork, cred, curp);
kauth_cred_unref(&cred);
- return (error);
+ return error;
}
int
MAC_CHECK(proc_check_get_task_name, cred, p);
- return (error);
+ return error;
}
int
MAC_CHECK(proc_check_get_task, cred, p);
- return (error);
+ return error;
}
int
-mac_proc_check_mprotect(proc_t proc,
- user_addr_t addr, user_size_t size, int prot)
+mac_proc_check_expose_task(struct ucred *cred, struct proc *p)
{
- kauth_cred_t cred;
int error;
- if (!mac_vm_enforce ||
- !mac_proc_check_enforce(proc, MAC_VM_ENFORCE))
- return (0);
+ MAC_CHECK(proc_check_expose_task, cred, p);
- cred = kauth_cred_proc_ref(proc);
- MAC_CHECK(proc_check_mprotect, cred, proc, addr, size, prot);
- kauth_cred_unref(&cred);
+ return error;
+}
+
+int
+mac_proc_check_inherit_ipc_ports(struct proc *p, struct vnode *cur_vp, off_t cur_offset, struct vnode *img_vp, off_t img_offset, struct vnode *scriptvp)
+{
+ int error;
+
+ MAC_CHECK(proc_check_inherit_ipc_ports, p, cur_vp, cur_offset, img_vp, img_offset, scriptvp);
- return (error);
+ return error;
}
+/*
+ * The type of maxprot in proc_check_map_anon must be equivalent to vm_prot_t
+ * (defined in <mach/vm_prot.h>). mac_policy.h does not include any header
+ * files, so cannot use the typedef itself.
+ */
int
-mac_proc_check_map_prot_copy_allow(proc_t proc)
+mac_proc_check_map_anon(proc_t proc, user_addr_t u_addr,
+ user_size_t u_size, int prot, int flags, int *maxprot)
{
kauth_cred_t cred;
int error;
-
- if (!mac_vm_enforce) return (0);
-
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vm_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(proc)) {
+ return 0;
+ }
+
cred = kauth_cred_proc_ref(proc);
- MAC_CHECK(proc_check_map_prot_copy_allow, cred, proc);
+ MAC_CHECK(proc_check_map_anon, proc, cred, u_addr, u_size, prot, flags, maxprot);
kauth_cred_unref(&cred);
-
- return (error);
+
+ return error;
}
-
+
int
-mac_proc_check_sched(proc_t curp, struct proc *proc)
+mac_proc_check_mprotect(proc_t proc,
+ user_addr_t addr, user_size_t size, int prot)
{
kauth_cred_t cred;
int error;
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vm_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(proc)) {
+ return 0;
+ }
-
- if (!mac_proc_enforce ||
- !mac_proc_check_enforce(curp, MAC_PROC_ENFORCE))
- return (0);
-
- cred = kauth_cred_proc_ref(curp);
- MAC_CHECK(proc_check_sched, cred, proc);
+ cred = kauth_cred_proc_ref(proc);
+ MAC_CHECK(proc_check_mprotect, cred, proc, addr, size, prot);
kauth_cred_unref(&cred);
- return (error);
+ return error;
}
int
-mac_proc_check_signal(proc_t curp, struct proc *proc, int signum)
+mac_proc_check_run_cs_invalid(proc_t proc)
{
- kauth_cred_t cred;
int error;
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_vm_enforce) {
+ return 0;
+ }
+#endif
+ MAC_CHECK(proc_check_run_cs_invalid, proc);
- if (!mac_proc_enforce ||
- !mac_proc_check_enforce(curp, MAC_PROC_ENFORCE))
- return (0);
-
- cred = kauth_cred_proc_ref(curp);
- MAC_CHECK(proc_check_signal, cred, proc, signum);
- kauth_cred_unref(&cred);
-
- return (error);
+ return error;
}
int
-mac_proc_check_wait(proc_t curp, struct proc *proc)
+mac_proc_check_sched(proc_t curp, struct proc *proc)
{
kauth_cred_t cred;
int error;
-
-
- if (!mac_proc_enforce ||
- !mac_proc_check_enforce(curp, MAC_PROC_ENFORCE))
- return (0);
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(curp)) {
+ return 0;
+ }
cred = kauth_cred_proc_ref(curp);
- MAC_CHECK(proc_check_wait, cred, proc);
+ MAC_CHECK(proc_check_sched, cred, proc);
kauth_cred_unref(&cred);
- return (error);
+ return error;
}
-#if CONFIG_LCTX
-/*
- * Login Context
- */
-
int
-mac_proc_check_setlcid (struct proc *p0, struct proc *p,
- pid_t pid, pid_t lcid)
+mac_proc_check_signal(proc_t curp, struct proc *proc, int signum)
{
+ kauth_cred_t cred;
int error;
- if (!mac_proc_enforce ||
- !mac_proc_check_enforce(p0, MAC_PROC_ENFORCE))
- return (0);
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(curp)) {
+ return 0;
+ }
- MAC_CHECK(proc_check_setlcid, p0, p, pid, lcid);
- return (error);
+ cred = kauth_cred_proc_ref(curp);
+ MAC_CHECK(proc_check_signal, cred, proc, signum);
+ kauth_cred_unref(&cred);
+
+ return error;
}
int
-mac_proc_check_getlcid (struct proc *p0, struct proc *p, pid_t pid)
+mac_proc_check_syscall_unix(proc_t curp, int scnum)
{
int error;
- if (!mac_proc_enforce ||
- !mac_proc_check_enforce(p0, MAC_PROC_ENFORCE))
- return (0);
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(curp)) {
+ return 0;
+ }
- MAC_CHECK(proc_check_getlcid, p0, p, pid);
- return (error);
-}
+ MAC_CHECK(proc_check_syscall_unix, curp, scnum);
-void
-mac_lctx_notify_create (struct proc *p, struct lctx *l)
-{
- MAC_PERFORM(lctx_notify_create, p, l);
+ return error;
}
-void
-mac_lctx_notify_join (struct proc *p, struct lctx *l)
+int
+mac_proc_check_wait(proc_t curp, struct proc *proc)
{
- MAC_PERFORM(lctx_notify_join, p, l);
-}
+ kauth_cred_t cred;
+ int error;
-void
-mac_lctx_notify_leave (struct proc *p, struct lctx *l)
-{
- MAC_PERFORM(lctx_notify_leave, p, l);
-}
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(curp)) {
+ return 0;
+ }
-struct label *
-mac_lctx_label_alloc(void)
-{
- struct label *label;
+ cred = kauth_cred_proc_ref(curp);
+ MAC_CHECK(proc_check_wait, cred, proc);
+ kauth_cred_unref(&cred);
- label = mac_labelzone_alloc(MAC_WAITOK);
- if (label == NULL)
- return (NULL);
- MAC_PERFORM(lctx_label_init, label);
- return (label);
+ return error;
}
void
-mac_lctx_label_free(struct label *label)
+mac_proc_notify_exit(struct proc *proc)
{
-
- MAC_PERFORM(lctx_label_destroy, label);
- mac_labelzone_free(label);
+ MAC_PERFORM(proc_notify_exit, proc);
}
int
-mac_lctx_label_externalize(struct label *label, char *elements,
- char *outbuf, size_t outbuflen)
+mac_proc_check_suspend_resume(proc_t curp, int sr)
{
+ kauth_cred_t cred;
int error;
- error = MAC_EXTERNALIZE(lctx, label, elements, outbuf, outbuflen);
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(curp)) {
+ return 0;
+ }
+
+ cred = kauth_cred_proc_ref(curp);
+ MAC_CHECK(proc_check_suspend_resume, cred, curp, sr);
+ kauth_cred_unref(&cred);
- return (error);
+ return error;
}
int
-mac_lctx_label_internalize(struct label *label, char *string)
+mac_proc_check_ledger(proc_t curp, proc_t proc, int ledger_op)
{
- int error;
+ kauth_cred_t cred;
+ int error = 0;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(curp)) {
+ return 0;
+ }
- error = MAC_INTERNALIZE(lctx, label, string);
+ cred = kauth_cred_proc_ref(curp);
+ MAC_CHECK(proc_check_ledger, cred, proc, ledger_op);
+ kauth_cred_unref(&cred);
- return (error);
+ return error;
}
-void
-mac_lctx_label_update(struct lctx *l, struct label *newlabel)
+int
+mac_proc_check_proc_info(proc_t curp, proc_t target, int callnum, int flavor)
{
+ kauth_cred_t cred;
+ int error = 0;
- MAC_PERFORM(lctx_label_update, l, newlabel);
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(curp)) {
+ return 0;
+ }
+
+ cred = kauth_cred_proc_ref(curp);
+ MAC_CHECK(proc_check_proc_info, cred, target, callnum, flavor);
+ kauth_cred_unref(&cred);
+
+ return error;
}
int
-mac_lctx_check_label_update(struct lctx *l, struct label *newlabel)
+mac_proc_check_get_cs_info(proc_t curp, proc_t target, unsigned int op)
{
- int error;
+ kauth_cred_t cred;
+ int error = 0;
- MAC_CHECK(lctx_check_label_update, l, newlabel);
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(curp)) {
+ return 0;
+ }
- return (error);
-}
-#endif /* LCTX */
+ cred = kauth_cred_proc_ref(curp);
+ MAC_CHECK(proc_check_get_cs_info, cred, target, op);
+ kauth_cred_unref(&cred);
+ return error;
+}
-void
-mac_thread_userret(int code, int error, struct thread *thread)
+int
+mac_proc_check_set_cs_info(proc_t curp, proc_t target, unsigned int op)
{
+ kauth_cred_t cred;
+ int error = 0;
+
+#if SECURITY_MAC_CHECK_ENFORCE
+ /* 21167099 - only check if we allow write */
+ if (!mac_proc_enforce) {
+ return 0;
+ }
+#endif
+ if (!mac_proc_check_enforce(curp)) {
+ return 0;
+ }
+
+ cred = kauth_cred_proc_ref(curp);
+ MAC_CHECK(proc_check_set_cs_info, cred, target, op);
+ kauth_cred_unref(&cred);
- if (mac_late)
- MAC_PERFORM(thread_userret, code, error, thread);
+ return error;
}
projects / apple / xnu.git / blobdiff