310 lines
11 KiB
C
310 lines
11 KiB
C
/*
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* Copyright (c) 2019-2021 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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#include <tests/ktest.h>
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#include <tests/xnupost.h>
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#include <kern/assert.h>
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/types.h>
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#include <sys/kdebug.h>
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#include <libkern/libkern.h>
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#include <kern/kalloc.h>
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#include <sys/cdefs.h>
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#include <libkern/version.h>
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#include <kern/clock.h>
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#include <kern/kern_cdata.h>
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#include <pexpert/pexpert.h>
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#if !(DEVELOPMENT || DEBUG)
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#error "Testing is not enabled on RELEASE configurations"
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#endif
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#if defined(__arm64__)
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extern kern_return_t arm64_lock_test(void);
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extern kern_return_t arm_cpu_capabilities_legacy_test(void);
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extern kern_return_t pmap_test(void);
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#endif /* defined(__arm64__) */
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kern_return_t ipi_test(void);
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#if defined(KERNEL_INTEGRITY_CTRR)
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extern kern_return_t ctrr_test(void);
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#endif
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#if __ARM_PAN_AVAILABLE__
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extern kern_return_t arm64_late_pan_test(void);
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#endif
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extern kern_return_t copyio_test(void);
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extern kern_return_t parse_boot_arg_test(void);
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struct xnupost_test bsd_post_tests[] = {
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#ifdef __arm64__
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XNUPOST_TEST_CONFIG_BASIC(arm64_lock_test),
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#endif
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#if defined(__arm64__)
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XNUPOST_TEST_CONFIG_BASIC(arm_cpu_capabilities_legacy_test),
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XNUPOST_TEST_CONFIG_BASIC(pmap_test),
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#endif /* defined(__arm64__) */
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#if CONFIG_SPTM
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/**
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* SPTM TODO: The CTRR test is currently not functional in SPTM systems.
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* This will be addressed in a future change.
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*/
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#else
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#if defined(KERNEL_INTEGRITY_CTRR)
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XNUPOST_TEST_CONFIG_BASIC(ctrr_test),
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#endif
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#endif
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#if __ARM_PAN_AVAILABLE__
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XNUPOST_TEST_CONFIG_BASIC(arm64_late_pan_test),
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#endif
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XNUPOST_TEST_CONFIG_BASIC(ipi_test),
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XNUPOST_TEST_CONFIG_BASIC(copyio_test),
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XNUPOST_TEST_CONFIG_BASIC(parse_boot_arg_test),
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};
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uint32_t bsd_post_tests_count = sizeof(bsd_post_tests) / sizeof(xnupost_test_data_t);
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extern uint64_t last_loaded_timestamp; /* updated by OSKext::load() */
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extern uint64_t kernel_post_args;
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int
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bsd_list_tests()
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{
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if (kernel_post_args == 0) {
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return 0;
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}
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uint64_t prev_load_time = last_loaded_timestamp;
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int no_load_counter = 5;
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int absolute_break_counter = 15;
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int delay_duration_usecs = 300000; /* 0.3 second for kext loading to stabilize */
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while (no_load_counter > 0) {
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printf("bsd_list_tests:INFO waiting for %d usecs\n", delay_duration_usecs);
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printf("bsd_list_tests: prev: %llu current: %llu\n", prev_load_time, last_loaded_timestamp);
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delay(delay_duration_usecs);
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absolute_break_counter -= 1;
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if (absolute_break_counter <= 0) {
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printf("bsd_list_tests: WARNING: Waiting beyond normal time for stabilizing kext loading\n");
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break;
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}
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if (prev_load_time == last_loaded_timestamp) {
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no_load_counter -= 1;
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printf("bsd_list_tests: INFO: no new kexts loaded. remaining checks: %d\n", no_load_counter);
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}
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prev_load_time = last_loaded_timestamp;
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}
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return xnupost_list_tests(bsd_post_tests, bsd_post_tests_count);
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}
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int
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bsd_do_post(void)
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{
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return xnupost_run_tests(bsd_post_tests, bsd_post_tests_count);
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}
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/* kcdata type definition */
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#define XNUPOST_TNAME_MAXLEN 132
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struct kcdata_subtype_descriptor kc_xnupost_test_def[] = {
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{.kcs_flags = KCS_SUBTYPE_FLAGS_NONE, .kcs_elem_type = KC_ST_UINT16, .kcs_elem_offset = 0, .kcs_elem_size = sizeof(uint16_t), .kcs_name = "config"},
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{.kcs_flags = KCS_SUBTYPE_FLAGS_NONE, .kcs_elem_type = KC_ST_UINT16, .kcs_elem_offset = 1 * sizeof(uint16_t), .kcs_elem_size = sizeof(uint16_t), .kcs_name = "test_num"},
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{.kcs_flags = KCS_SUBTYPE_FLAGS_NONE, .kcs_elem_type = KC_ST_INT32, .kcs_elem_offset = 2 * sizeof(uint16_t), .kcs_elem_size = sizeof(int32_t), .kcs_name = "retval"},
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{.kcs_flags = KCS_SUBTYPE_FLAGS_NONE, .kcs_elem_type = KC_ST_INT32, .kcs_elem_offset = 2 * sizeof(uint16_t) + sizeof(int32_t), .kcs_elem_size = sizeof(int32_t), .kcs_name = "expected_retval"},
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{.kcs_flags = KCS_SUBTYPE_FLAGS_NONE, .kcs_elem_type = KC_ST_UINT64, .kcs_elem_offset = 2 * (sizeof(uint16_t) + sizeof(int32_t)), .kcs_elem_size = sizeof(uint64_t), .kcs_name = "begin_time"},
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{.kcs_flags = KCS_SUBTYPE_FLAGS_NONE, .kcs_elem_type = KC_ST_UINT64, .kcs_elem_offset = 2 * (sizeof(uint16_t) + sizeof(int32_t)) + sizeof(uint64_t), .kcs_elem_size = sizeof(uint64_t), .kcs_name = "end_time"},
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{.kcs_flags = KCS_SUBTYPE_FLAGS_ARRAY,
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.kcs_elem_type = KC_ST_CHAR,
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.kcs_elem_offset = 2 * (sizeof(uint16_t) + sizeof(int32_t) + sizeof(uint64_t)),
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.kcs_elem_size = KCS_SUBTYPE_PACK_SIZE(XNUPOST_TNAME_MAXLEN * sizeof(char), sizeof(char)),
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.kcs_name = "test_name"}
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};
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const uint32_t kc_xnupost_test_def_count = sizeof(kc_xnupost_test_def) / sizeof(struct kcdata_subtype_descriptor);
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kern_return_t xnupost_copyout_test(xnupost_test_t t, mach_vm_address_t outaddr);
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int
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xnupost_copyout_test(xnupost_test_t t, mach_vm_address_t outaddr)
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{
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/* code to copyout test config */
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int kret = 0;
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size_t namelen = 0;
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kret = copyout(&t->xt_config, (user_addr_t)outaddr, sizeof(uint16_t));
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if (kret) {
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return kret;
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}
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outaddr += sizeof(uint16_t);
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kret = copyout(&t->xt_test_num, (user_addr_t)outaddr, sizeof(uint16_t));
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if (kret) {
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return kret;
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}
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outaddr += sizeof(uint16_t);
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kret = copyout(&t->xt_retval, (user_addr_t)outaddr, sizeof(uint32_t));
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if (kret) {
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return kret;
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}
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outaddr += sizeof(uint32_t);
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kret = copyout(&t->xt_expected_retval, (user_addr_t)outaddr, sizeof(uint32_t));
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if (kret) {
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return kret;
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}
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outaddr += sizeof(uint32_t);
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kret = copyout(&t->xt_begin_time, (user_addr_t)outaddr, sizeof(uint64_t));
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if (kret) {
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return kret;
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}
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outaddr += sizeof(uint64_t);
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kret = copyout(&t->xt_end_time, (user_addr_t)outaddr, sizeof(uint64_t));
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if (kret) {
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return kret;
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}
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outaddr += sizeof(uint64_t);
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namelen = strnlen(t->xt_name, XNUPOST_TNAME_MAXLEN - 1) + 1;
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kret = copyout(t->xt_name, (user_addr_t)outaddr, namelen);
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if (kret) {
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return kret;
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}
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outaddr += namelen;
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return 0;
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}
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uint32_t
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xnupost_get_estimated_testdata_size(void)
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{
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uint32_t total_tests = bsd_post_tests_count + kernel_post_tests_count;
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uint32_t elem_size = kc_xnupost_test_def[kc_xnupost_test_def_count - 1].kcs_elem_offset +
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kcs_get_elem_size(&kc_xnupost_test_def[kc_xnupost_test_def_count - 1]);
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uint32_t retval = 1024; /* account for type definition and mach timebase */
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retval += 1024; /* kernel version and boot-args string data */
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retval += (total_tests * elem_size);
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return retval;
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}
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int
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xnupost_export_testdata(void * outp, size_t size_in, uint32_t * lenp)
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{
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struct kcdata_descriptor kcd;
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mach_vm_address_t user_addr = 0;
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mach_vm_address_t tmp_entry_addr = 0;
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kern_return_t kret = 0;
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uint32_t i = 0;
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char kctype_name[32] = "xnupost_test_config";
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mach_timebase_info_data_t timebase = {0, 0};
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uint32_t length_to_copy = 0;
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unsigned int size = (unsigned int)size_in;
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if (size_in > UINT_MAX) {
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return ENOSPC;
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}
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#define RET_IF_OP_FAIL \
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do { \
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if (kret != KERN_SUCCESS) { \
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return (kret == KERN_NO_ACCESS) ? EACCES : ((kret == KERN_RESOURCE_SHORTAGE) ? ENOMEM : EINVAL); \
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} \
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} while (0)
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kret = kcdata_memory_static_init(&kcd, (mach_vm_address_t)outp, KCDATA_BUFFER_BEGIN_XNUPOST_CONFIG, size, KCFLAG_USE_COPYOUT);
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RET_IF_OP_FAIL;
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/* add mach timebase info */
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clock_timebase_info(&timebase);
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kret = kcdata_get_memory_addr(&kcd, KCDATA_TYPE_TIMEBASE, sizeof(timebase), &user_addr);
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RET_IF_OP_FAIL;
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kret = copyout(&timebase, (user_addr_t)user_addr, sizeof(timebase));
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RET_IF_OP_FAIL;
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/* save boot-args and osversion string */
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length_to_copy = MIN((uint32_t)(strlen(version) + 1), OSVERSIZE);
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kret = kcdata_get_memory_addr(&kcd, STACKSHOT_KCTYPE_OSVERSION, length_to_copy, &user_addr);
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RET_IF_OP_FAIL;
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kret = copyout(&version[0], (user_addr_t)user_addr, length_to_copy);
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RET_IF_OP_FAIL;
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length_to_copy = MIN((uint32_t)(strlen(PE_boot_args()) + 1), BOOT_LINE_LENGTH);
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kret = kcdata_get_memory_addr(&kcd, STACKSHOT_KCTYPE_BOOTARGS, length_to_copy, &user_addr);
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RET_IF_OP_FAIL;
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kret = copyout(PE_boot_args(), (user_addr_t)user_addr, length_to_copy);
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RET_IF_OP_FAIL;
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/* add type definition to buffer */
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kret = kcdata_add_type_definition(&kcd, XNUPOST_KCTYPE_TESTCONFIG, kctype_name, &kc_xnupost_test_def[0],
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kc_xnupost_test_def_count);
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RET_IF_OP_FAIL;
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/* add the tests to buffer as array */
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uint32_t total_tests = bsd_post_tests_count + kernel_post_tests_count;
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uint32_t elem_size = kc_xnupost_test_def[kc_xnupost_test_def_count - 1].kcs_elem_offset +
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kcs_get_elem_size(&kc_xnupost_test_def[kc_xnupost_test_def_count - 1]);
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kret = kcdata_get_memory_addr_for_array(&kcd, XNUPOST_KCTYPE_TESTCONFIG, elem_size, total_tests, &user_addr);
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RET_IF_OP_FAIL;
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for (i = 0; i < bsd_post_tests_count; i++) {
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tmp_entry_addr = (mach_vm_address_t)((uint64_t)(user_addr) + (uint64_t)(i * elem_size));
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kret = xnupost_copyout_test(&bsd_post_tests[i], tmp_entry_addr);
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RET_IF_OP_FAIL;
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}
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user_addr = (mach_vm_address_t)((uint64_t)(user_addr) + (uint64_t)(i * elem_size));
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for (i = 0; i < kernel_post_tests_count; i++) {
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tmp_entry_addr = (mach_vm_address_t)((uint64_t)(user_addr) + (uint64_t)(i * elem_size));
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kret = xnupost_copyout_test(&kernel_post_tests[i], tmp_entry_addr);
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RET_IF_OP_FAIL;
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}
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if (kret == KERN_SUCCESS && lenp != NULL) {
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*lenp = (uint32_t)kcdata_memory_get_used_bytes(&kcd);
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}
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RET_IF_OP_FAIL;
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#undef RET_IF_OP_FAIL
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return kret;
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}
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int
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xnupost_reset_all_tests(void)
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{
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xnupost_reset_tests(&bsd_post_tests[0], bsd_post_tests_count);
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xnupost_reset_tests(&kernel_post_tests[0], kernel_post_tests_count);
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return 0;
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}
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