X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/b0d623f7f2ae71ed96e60569f61f9a9a27016e80..04b8595b18b1b41ac7a206e4b3d51a635f8413d7:/bsd/kern/kern_mman.c diff --git a/bsd/kern/kern_mman.c b/bsd/kern/kern_mman.c index 02166d578..27bee276c 100644 --- a/bsd/kern/kern_mman.c +++ b/bsd/kern/kern_mman.c @@ -95,9 +95,13 @@ #include #include #include +#if CONFIG_PROTECT +#include +#endif #include #include +#include #include #include @@ -112,18 +116,20 @@ #include #include +#include + #include #include +#include +#include + +#include #include #include #include #include -/* XXX the following function should probably be static */ -kern_return_t map_fd_funneled(int, vm_object_offset_t, vm_offset_t *, - boolean_t, vm_size_t); - /* * XXX Internally, we use VM_PROT_* somewhat interchangeably, but the correct * XXX usage is PROT_* from an interface perspective. Thus the values of @@ -142,8 +148,8 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) int err=0; vm_map_t user_map; kern_return_t result; - mach_vm_offset_t user_addr; - mach_vm_size_t user_size; + vm_map_offset_t user_addr; + vm_map_size_t user_size; vm_object_offset_t pageoff; vm_object_offset_t file_pos; int alloc_flags=0; @@ -156,9 +162,11 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) int fpref=0; int error =0; int fd = uap->fd; + int num_retries = 0; - user_addr = (mach_vm_offset_t)uap->addr; - user_size = (mach_vm_size_t) uap->len; + user_map = current_map(); + user_addr = (vm_map_offset_t)uap->addr; + user_size = (vm_map_size_t) uap->len; AUDIT_ARG(addr, user_addr); AUDIT_ARG(len, user_size); @@ -195,15 +203,18 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) * Align the file position to a page boundary, * and save its page offset component. */ - pageoff = (file_pos & PAGE_MASK); + pageoff = (file_pos & vm_map_page_mask(user_map)); file_pos -= (vm_object_offset_t)pageoff; /* Adjust size for rounding (on both ends). */ - user_size += pageoff; /* low end... */ - user_size = mach_vm_round_page(user_size); /* hi end */ - + user_size += pageoff; /* low end... */ + user_size = vm_map_round_page(user_size, + vm_map_page_mask(user_map)); /* hi end */ + if ((flags & MAP_JIT) && ((flags & MAP_FIXED) || (flags & MAP_SHARED) || !(flags & MAP_ANON))){ + return EINVAL; + } /* * Check for illegal addresses. Watch out for address wrap... Note * that VM_*_ADDRESS are not constants due to casts (argh). @@ -215,8 +226,8 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) * should be aligned after adjustment by pageoff. */ user_addr -= pageoff; - if (user_addr & PAGE_MASK) - return (EINVAL); + if (user_addr & vm_map_page_mask(user_map)) + return (EINVAL); } #ifdef notyet /* DO not have apis to get this info, need to wait till then*/ @@ -228,14 +239,28 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) * There should really be a pmap call to determine a reasonable * location. */ - else if (addr < mach_vm_round_page(p->p_vmspace->vm_daddr + MAXDSIZ)) - addr = mach_vm_round_page(p->p_vmspace->vm_daddr + MAXDSIZ); + else if (addr < vm_map_round_page(p->p_vmspace->vm_daddr + MAXDSIZ, + vm_map_page_mask(user_map))) + addr = vm_map_round_page(p->p_vmspace->vm_daddr + MAXDSIZ, + vm_map_page_mask(user_map)); #endif alloc_flags = 0; if (flags & MAP_ANON) { + + maxprot = VM_PROT_ALL; +#if CONFIG_MACF + /* + * Entitlement check. + */ + error = mac_proc_check_map_anon(p, user_addr, user_size, prot, flags, &maxprot); + if (error) { + return EINVAL; + } +#endif /* MAC */ + /* * Mapping blank space is trivial. Use positive fds as the alias * value for memory tracking. @@ -245,7 +270,7 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) * Use "fd" to pass (some) Mach VM allocation flags, * (see the VM_FLAGS_* definitions). */ - alloc_flags = fd & (VM_FLAGS_ALIAS_MASK | + alloc_flags = fd & (VM_FLAGS_ALIAS_MASK | VM_FLAGS_SUPERPAGE_MASK | VM_FLAGS_PURGABLE); if (alloc_flags != fd) { /* reject if there are any extra flags */ @@ -254,13 +279,15 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) } handle = NULL; - maxprot = VM_PROT_ALL; file_pos = 0; mapanon = 1; } else { struct vnode_attr va; vfs_context_t ctx = vfs_context_current(); + if (flags & MAP_JIT) + return EINVAL; + /* * Mapping file, get fp for validation. Obtain vnode and make * sure it is of appropriate type. @@ -269,7 +296,8 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) if (err) return(err); fpref = 1; - if(fp->f_fglob->fg_type == DTYPE_PSXSHM) { + switch (FILEGLOB_DTYPE(fp->f_fglob)) { + case DTYPE_PSXSHM: uap->addr = (user_addr_t)user_addr; uap->len = (user_size_t)user_size; uap->prot = prot; @@ -277,9 +305,9 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) uap->pos = file_pos; error = pshm_mmap(p, uap, retval, fp, (off_t)pageoff); goto bad; - } - - if (fp->f_fglob->fg_type != DTYPE_VNODE) { + case DTYPE_VNODE: + break; + default: error = EINVAL; goto bad; } @@ -382,6 +410,18 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) goto bad; } #endif /* MAC */ + +#if CONFIG_PROTECT + { + error = cp_handle_vnop(vp, CP_READ_ACCESS | CP_WRITE_ACCESS, 0); + if (error) { + (void) vnode_put(vp); + goto bad; + } + } +#endif /* CONFIG_PROTECT */ + + } } @@ -396,22 +436,23 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) * We bend a little - round the start and end addresses * to the nearest page boundary. */ - user_size = mach_vm_round_page(user_size); + user_size = vm_map_round_page(user_size, + vm_map_page_mask(user_map)); - if (file_pos & PAGE_MASK_64) { + if (file_pos & vm_map_page_mask(user_map)) { if (!mapanon) (void)vnode_put(vp); error = EINVAL; goto bad; } - user_map = current_map(); - if ((flags & MAP_FIXED) == 0) { alloc_flags |= VM_FLAGS_ANYWHERE; - user_addr = mach_vm_round_page(user_addr); + user_addr = vm_map_round_page(user_addr, + vm_map_page_mask(user_map)); } else { - if (user_addr != mach_vm_trunc_page(user_addr)) { + if (user_addr != vm_map_trunc_page(user_addr, + vm_map_page_mask(user_map))) { if (!mapanon) (void)vnode_put(vp); error = EINVAL; @@ -434,6 +475,9 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) if (flags & MAP_NOCACHE) alloc_flags |= VM_FLAGS_NO_CACHE; + if (flags & MAP_JIT){ + alloc_flags |= VM_FLAGS_MAP_JIT; + } /* * Lookup/allocate object. */ @@ -455,7 +499,7 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) if (maxprot & (VM_PROT_EXECUTE | VM_PROT_WRITE)) maxprot |= VM_PROT_READ; #endif /* radar 3777787 */ - +map_anon_retry: result = vm_map_enter_mem_object(user_map, &user_addr, user_size, 0, alloc_flags, @@ -464,6 +508,16 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) (flags & MAP_SHARED) ? VM_INHERIT_SHARE : VM_INHERIT_DEFAULT); + + /* If a non-binding address was specified for this anonymous + * mapping, retry the mapping with a zero base + * in the event the mapping operation failed due to + * lack of space between the address and the map's maximum. + */ + if ((result == KERN_NO_SPACE) && ((flags & MAP_FIXED) == 0) && user_addr && (num_retries++ == 0)) { + user_addr = vm_map_page_size(user_map); + goto map_anon_retry; + } } else { if (vnode_isswap(vp)) { /* @@ -514,7 +568,7 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) if (maxprot & (VM_PROT_EXECUTE | VM_PROT_WRITE)) maxprot |= VM_PROT_READ; #endif /* radar 3777787 */ - +map_file_retry: result = vm_map_enter_mem_object_control(user_map, &user_addr, user_size, 0, alloc_flags, @@ -523,6 +577,16 @@ mmap(proc_t p, struct mmap_args *uap, user_addr_t *retval) (flags & MAP_SHARED) ? VM_INHERIT_SHARE : VM_INHERIT_DEFAULT); + + /* If a non-binding address was specified for this file backed + * mapping, retry the mapping with a zero base + * in the event the mapping operation failed due to + * lack of space between the address and the map's maximum. + */ + if ((result == KERN_NO_SPACE) && ((flags & MAP_FIXED) == 0) && user_addr && (num_retries++ == 0)) { + user_addr = vm_map_page_size(user_map); + goto map_file_retry; + } } if (!mapanon) { @@ -560,7 +624,6 @@ bad: KERNEL_DEBUG_CONSTANT((BSDDBG_CODE(DBG_BSD_SC_EXTENDED_INFO, SYS_mmap) | DBG_FUNC_NONE), fd, (uint32_t)(*retval), (uint32_t)user_size, error, 0); KERNEL_DEBUG_CONSTANT((BSDDBG_CODE(DBG_BSD_SC_EXTENDED_INFO2, SYS_mmap) | DBG_FUNC_NONE), (uint32_t)(*retval >> 32), (uint32_t)(user_size >> 32), (uint32_t)(file_pos >> 32), (uint32_t)file_pos, 0); - return(error); } @@ -581,12 +644,11 @@ msync_nocancel(__unused proc_t p, struct msync_nocancel_args *uap, __unused int3 int rv; vm_sync_t sync_flags=0; + user_map = current_map(); addr = (mach_vm_offset_t) uap->addr; size = (mach_vm_size_t)uap->len; - KERNEL_DEBUG_CONSTANT((BSDDBG_CODE(DBG_BSD_SC_EXTENDED_INFO, SYS_msync) | DBG_FUNC_NONE), (uint32_t)(addr >> 32), (uint32_t)(size >> 32), 0, 0, 0); - - if (addr & PAGE_MASK_64) { + if (addr & vm_map_page_mask(user_map)) { /* UNIX SPEC: user address is not page-aligned, return EINVAL */ return EINVAL; } @@ -622,7 +684,6 @@ msync_nocancel(__unused proc_t p, struct msync_nocancel_args *uap, __unused int3 sync_flags |= VM_SYNC_CONTIGUOUS; /* complain if holes */ - user_map = current_map(); rv = mach_vm_msync(user_map, addr, size, sync_flags); switch (rv) { @@ -643,16 +704,18 @@ int munmap(__unused proc_t p, struct munmap_args *uap, __unused int32_t *retval) { mach_vm_offset_t user_addr; - mach_vm_size_t user_size; - kern_return_t result; + mach_vm_size_t user_size; + kern_return_t result; + vm_map_t user_map; + user_map = current_map(); user_addr = (mach_vm_offset_t) uap->addr; user_size = (mach_vm_size_t) uap->len; AUDIT_ARG(addr, user_addr); AUDIT_ARG(len, user_size); - if (user_addr & PAGE_MASK_64) { + if (user_addr & vm_map_page_mask(user_map)) { /* UNIX SPEC: user address is not page-aligned, return EINVAL */ return EINVAL; } @@ -665,7 +728,7 @@ munmap(__unused proc_t p, struct munmap_args *uap, __unused int32_t *retval) return EINVAL; } - result = mach_vm_deallocate(current_map(), user_addr, user_size); + result = mach_vm_deallocate(user_map, user_addr, user_size); if (result != KERN_SUCCESS) { return(EINVAL); } @@ -688,11 +751,12 @@ mprotect(__unused proc_t p, struct mprotect_args *uap, __unused int32_t *retval) AUDIT_ARG(len, uap->len); AUDIT_ARG(value32, uap->prot); + user_map = current_map(); user_addr = (mach_vm_offset_t) uap->addr; user_size = (mach_vm_size_t) uap->len; - prot = (vm_prot_t)(uap->prot & VM_PROT_ALL); + prot = (vm_prot_t)(uap->prot & (VM_PROT_ALL | VM_PROT_TRUSTED)); - if (user_addr & PAGE_MASK_64) { + if (user_addr & vm_map_page_mask(user_map)) { /* UNIX SPEC: user address is not page-aligned, return EINVAL */ return EINVAL; } @@ -710,8 +774,6 @@ mprotect(__unused proc_t p, struct mprotect_args *uap, __unused int32_t *retval) prot |= VM_PROT_READ; #endif /* 3936456 */ - user_map = current_map(); - #if CONFIG_MACF /* * The MAC check for mprotect is of limited use for 2 reasons: @@ -728,6 +790,37 @@ mprotect(__unused proc_t p, struct mprotect_args *uap, __unused int32_t *retval) if (error) return (error); #endif + + if(prot & VM_PROT_TRUSTED) { +#if CONFIG_DYNAMIC_CODE_SIGNING + /* CODE SIGNING ENFORCEMENT - JIT support */ + /* The special protection value VM_PROT_TRUSTED requests that we treat + * this page as if it had a valid code signature. + * If this is enabled, there MUST be a MAC policy implementing the + * mac_proc_check_mprotect() hook above. Otherwise, Codesigning will be + * compromised because the check would always succeed and thusly any + * process could sign dynamically. */ + result = vm_map_sign( + user_map, + vm_map_trunc_page(user_addr, + vm_map_page_mask(user_map)), + vm_map_round_page(user_addr+user_size, + vm_map_page_mask(user_map))); + switch (result) { + case KERN_SUCCESS: + break; + case KERN_INVALID_ADDRESS: + /* UNIX SPEC: for an invalid address range, return ENOMEM */ + return ENOMEM; + default: + return EINVAL; + } +#else + return ENOTSUP; +#endif + } + prot &= ~VM_PROT_TRUSTED; + result = mach_vm_protect(user_map, user_addr, user_size, FALSE, prot); switch (result) { @@ -827,13 +920,15 @@ madvise(__unused proc_t p, struct madvise_args *uap, __unused int32_t *retval) result = mach_vm_behavior_set(user_map, start, size, new_behavior); switch (result) { - case KERN_SUCCESS: - return (0); - case KERN_INVALID_ADDRESS: - return (ENOMEM); + case KERN_SUCCESS: + return 0; + case KERN_INVALID_ADDRESS: + return EINVAL; + case KERN_NO_SPACE: + return ENOMEM; } - return (EINVAL); + return EINVAL; } int @@ -857,8 +952,10 @@ mincore(__unused proc_t p, struct mincore_args *uap, __unused int32_t *retval) * Make sure that the addresses presented are valid for user * mode. */ - first_addr = addr = mach_vm_trunc_page(uap->addr); - end = addr + mach_vm_round_page(uap->len); + first_addr = addr = vm_map_trunc_page(uap->addr, + vm_map_page_mask(map)); + end = addr + vm_map_round_page(uap->len, + vm_map_page_mask(map)); if (end < addr) return (EINVAL); @@ -957,10 +1054,10 @@ mlock(__unused proc_t p, struct mlock_args *uap, __unused int32_t *retvalval) if (size == 0) return (0); - pageoff = (addr & PAGE_MASK); - addr -= pageoff; - size = vm_map_round_page(size+pageoff); user_map = current_map(); + pageoff = (addr & vm_map_page_mask(user_map)); + addr -= pageoff; + size = vm_map_round_page(size+pageoff, vm_map_page_mask(user_map)); /* have to call vm_map_wire directly to pass "I don't know" protections */ result = vm_map_wire(user_map, addr, addr+size, VM_PROT_NONE, TRUE); @@ -1006,183 +1103,119 @@ munlockall(__unused proc_t p, __unused struct munlockall_args *uap, __unused int return(ENOSYS); } -/* USV: No! need to obsolete map_fd()! mmap() already supports 64 bits */ -kern_return_t -map_fd(struct map_fd_args *args) -{ - int fd = args->fd; - vm_offset_t offset = args->offset; - vm_offset_t *va = args->va; - boolean_t findspace = args->findspace; - vm_size_t size = args->size; - kern_return_t ret; - - AUDIT_MACH_SYSCALL_ENTER(AUE_MAPFD); - AUDIT_ARG(addr, CAST_DOWN(user_addr_t, args->va)); - AUDIT_ARG(fd, fd); - - ret = map_fd_funneled( fd, (vm_object_offset_t)offset, va, findspace, size); - - AUDIT_MACH_SYSCALL_EXIT(ret); - return ret; -} - -kern_return_t -map_fd_funneled( - int fd, - vm_object_offset_t offset, - vm_offset_t *va, - boolean_t findspace, - vm_size_t size) +#if CONFIG_CODE_DECRYPTION +int +mremap_encrypted(__unused struct proc *p, struct mremap_encrypted_args *uap, __unused int32_t *retval) { - kern_return_t result; - struct fileproc *fp; - struct vnode *vp; - void * pager; - vm_offset_t map_addr=0; - vm_size_t map_size; - int err=0; - vm_map_t my_map; - proc_t p = current_proc(); - struct vnode_attr vattr; - - /* - * Find the inode; verify that it's a regular file. - */ - - err = fp_lookup(p, fd, &fp, 0); - if (err) - return(err); - - if (fp->f_fglob->fg_type != DTYPE_VNODE){ - err = KERN_INVALID_ARGUMENT; - goto bad; - } - - if (!(fp->f_fglob->fg_flag & FREAD)) { - err = KERN_PROTECTION_FAILURE; - goto bad; - } - - vp = (struct vnode *)fp->f_fglob->fg_data; - err = vnode_getwithref(vp); - if(err != 0) - goto bad; - - if (vp->v_type != VREG) { - (void)vnode_put(vp); - err = KERN_INVALID_ARGUMENT; - goto bad; - } - - AUDIT_ARG(vnpath, vp, ARG_VNODE1); - - /* - * POSIX: mmap needs to update access time for mapped files - */ - if ((vnode_vfsvisflags(vp) & MNT_NOATIME) == 0) { - VATTR_INIT(&vattr); - nanotime(&vattr.va_access_time); - VATTR_SET_ACTIVE(&vattr, va_access_time); - vnode_setattr(vp, &vattr, vfs_context_current()); - } - - if (offset & PAGE_MASK_64) { - printf("map_fd: file offset not page aligned(%d : %s)\n",p->p_pid, p->p_comm); - (void)vnode_put(vp); - err = KERN_INVALID_ARGUMENT; - goto bad; - } - map_size = round_page(size); - - /* - * Allow user to map in a zero length file. - */ - if (size == 0) { - (void)vnode_put(vp); - err = KERN_SUCCESS; - goto bad; - } - /* - * Map in the file. - */ - pager = (void *)ubc_getpager(vp); - if (pager == NULL) { - (void)vnode_put(vp); - err = KERN_FAILURE; - goto bad; - } - - - my_map = current_map(); - - result = vm_map_64( - my_map, - &map_addr, map_size, (vm_offset_t)0, - VM_FLAGS_ANYWHERE, pager, offset, TRUE, - VM_PROT_DEFAULT, VM_PROT_ALL, - VM_INHERIT_DEFAULT); - if (result != KERN_SUCCESS) { - (void)vnode_put(vp); - err = result; - goto bad; - } - - - if (!findspace) { - //K64todo fix for 64bit user? - uint32_t dst_addr; - vm_map_copy_t tmp; - - if (copyin(CAST_USER_ADDR_T(va), &dst_addr, sizeof (dst_addr)) || - trunc_page(dst_addr) != dst_addr) { - (void) vm_map_remove( - my_map, - map_addr, map_addr + map_size, - VM_MAP_NO_FLAGS); - (void)vnode_put(vp); - err = KERN_INVALID_ADDRESS; - goto bad; - } - - result = vm_map_copyin(my_map, (vm_map_address_t)map_addr, - (vm_map_size_t)map_size, TRUE, &tmp); - if (result != KERN_SUCCESS) { - - (void) vm_map_remove(my_map, vm_map_trunc_page(map_addr), - vm_map_round_page(map_addr + map_size), - VM_MAP_NO_FLAGS); - (void)vnode_put(vp); - err = result; - goto bad; - } - - result = vm_map_copy_overwrite(my_map, - (vm_map_address_t)dst_addr, tmp, FALSE); - if (result != KERN_SUCCESS) { - vm_map_copy_discard(tmp); - (void)vnode_put(vp); - err = result; - goto bad; - } - } else { - // K64todo bug compatible now, should fix for 64bit user - uint32_t user_map_addr = CAST_DOWN_EXPLICIT(uint32_t, map_addr); - if (copyout(&user_map_addr, CAST_USER_ADDR_T(va), sizeof (user_map_addr))) { - (void) vm_map_remove(my_map, vm_map_trunc_page(map_addr), - vm_map_round_page(map_addr + map_size), - VM_MAP_NO_FLAGS); - (void)vnode_put(vp); - err = KERN_INVALID_ADDRESS; - goto bad; - } - } - - ubc_setthreadcred(vp, current_proc(), current_thread()); - (void)vnode_put(vp); - err = 0; -bad: - fp_drop(p, fd, fp, 0); - return (err); + mach_vm_offset_t user_addr; + mach_vm_size_t user_size; + kern_return_t result; + vm_map_t user_map; + uint32_t cryptid; + cpu_type_t cputype; + cpu_subtype_t cpusubtype; + pager_crypt_info_t crypt_info; + const char * cryptname = 0; + char *vpath; + int len, ret; + struct proc_regioninfo_internal pinfo; + vnode_t vp; + uintptr_t vnodeaddr; + uint32_t vid; + + AUDIT_ARG(addr, uap->addr); + AUDIT_ARG(len, uap->len); + + user_map = current_map(); + user_addr = (mach_vm_offset_t) uap->addr; + user_size = (mach_vm_size_t) uap->len; + + cryptid = uap->cryptid; + cputype = uap->cputype; + cpusubtype = uap->cpusubtype; + + if (user_addr & vm_map_page_mask(user_map)) { + /* UNIX SPEC: user address is not page-aligned, return EINVAL */ + return EINVAL; + } + + switch(cryptid) { + case 0: + /* not encrypted, just an empty load command */ + return 0; + case 1: + cryptname="com.apple.unfree"; + break; + case 0x10: + /* some random cryptid that you could manually put into + * your binary if you want NULL */ + cryptname="com.apple.null"; + break; + default: + return EINVAL; + } + + if (NULL == text_crypter_create) return ENOTSUP; + + ret = fill_procregioninfo_onlymappedvnodes( proc_task(p), user_addr, &pinfo, &vnodeaddr, &vid); + if (ret == 0 || !vnodeaddr) { + /* No really, this returns 0 if the memory address is not backed by a file */ + return (EINVAL); + } + + vp = (vnode_t)vnodeaddr; + if ((vnode_getwithvid(vp, vid)) == 0) { + MALLOC_ZONE(vpath, char *, MAXPATHLEN, M_NAMEI, M_WAITOK); + if(vpath == NULL) { + vnode_put(vp); + return (ENOMEM); + } + + len = MAXPATHLEN; + ret = vn_getpath(vp, vpath, &len); + if(ret) { + FREE_ZONE(vpath, MAXPATHLEN, M_NAMEI); + vnode_put(vp); + return (ret); + } + + vnode_put(vp); + } else { + return (EINVAL); + } + +#if 0 + kprintf("%s vpath %s cryptid 0x%08x cputype 0x%08x cpusubtype 0x%08x range 0x%016llx size 0x%016llx\n", + __FUNCTION__, vpath, cryptid, cputype, cpusubtype, (uint64_t)user_addr, (uint64_t)user_size); +#endif + + /* set up decrypter first */ + crypt_file_data_t crypt_data = { + .filename = vpath, + .cputype = cputype, + .cpusubtype = cpusubtype }; + result = text_crypter_create(&crypt_info, cryptname, (void*)&crypt_data); + FREE_ZONE(vpath, MAXPATHLEN, M_NAMEI); + + if(result) { + printf("%s: unable to create decrypter %s, kr=%d\n", + __FUNCTION__, cryptname, result); + if (result == kIOReturnNotPrivileged) { + /* text encryption returned decryption failure */ + return (EPERM); + } else { + return (ENOMEM); + } + } + + /* now remap using the decrypter */ + result = vm_map_apple_protected(user_map, user_addr, user_addr+user_size, &crypt_info); + if (result) { + printf("%s: mapping failed with %d\n", __FUNCTION__, result); + crypt_info.crypt_end(crypt_info.crypt_ops); + return (EPERM); + } + + return 0; } - +#endif /* CONFIG_CODE_DECRYPTION */