336 lines
12 KiB
C++
336 lines
12 KiB
C++
// Copyright 2014 The Crashpad Authors
|
||
//
|
||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
// you may not use this file except in compliance with the License.
|
||
// You may obtain a copy of the License at
|
||
//
|
||
// http://www.apache.org/licenses/LICENSE-2.0
|
||
//
|
||
// Unless required by applicable law or agreed to in writing, software
|
||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
// See the License for the specific language governing permissions and
|
||
// limitations under the License.
|
||
|
||
#include "util/mac/mac_util.h"
|
||
|
||
#include <Availability.h>
|
||
#include <CoreFoundation/CoreFoundation.h>
|
||
#include <IOKit/IOKitLib.h>
|
||
#include <string.h>
|
||
#include <sys/types.h>
|
||
#include <sys/utsname.h>
|
||
|
||
#include "base/apple/foundation_util.h"
|
||
#include "base/apple/scoped_cftyperef.h"
|
||
#include "base/check_op.h"
|
||
#include "base/logging.h"
|
||
#include "base/mac/scoped_ioobject.h"
|
||
#include "base/notreached.h"
|
||
#include "base/strings/string_number_conversions.h"
|
||
#include "base/strings/string_piece.h"
|
||
#include "base/strings/stringprintf.h"
|
||
#include "base/strings/sys_string_conversions.h"
|
||
#include "build/build_config.h"
|
||
#include "util/mac/sysctl.h"
|
||
|
||
extern "C" {
|
||
// Private CoreFoundation internals. See 10.9.2 CF-855.14/CFPriv.h and
|
||
// CF-855.14/CFUtilities.c. These are marked for weak import because they’re
|
||
// private and subject to change.
|
||
|
||
#define WEAK_IMPORT __attribute__((weak_import))
|
||
|
||
// Don’t call these functions directly, call them through the
|
||
// TryCFCopy*VersionDictionary() helpers to account for the possibility that
|
||
// they may not be present at runtime.
|
||
CFDictionaryRef _CFCopySystemVersionDictionary() WEAK_IMPORT;
|
||
|
||
// Don’t use these constants with CFDictionaryGetValue() directly, use them with
|
||
// the TryCFDictionaryGetValue() wrapper to account for the possibility that
|
||
// they may not be present at runtime.
|
||
extern const CFStringRef _kCFSystemVersionProductNameKey WEAK_IMPORT;
|
||
extern const CFStringRef _kCFSystemVersionProductVersionKey WEAK_IMPORT;
|
||
extern const CFStringRef _kCFSystemVersionProductVersionExtraKey WEAK_IMPORT;
|
||
extern const CFStringRef _kCFSystemVersionBuildVersionKey WEAK_IMPORT;
|
||
|
||
#undef WEAK_IMPORT
|
||
|
||
} // extern "C"
|
||
|
||
namespace {
|
||
|
||
#if __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_13_4
|
||
// Returns the running system’s Darwin major version. Don’t call this, it’s an
|
||
// implementation detail and its result is meant to be cached by
|
||
// MacOSVersionNumber().
|
||
//
|
||
// This is very similar to Chromium’s base/mac/mac_util.mm
|
||
// DarwinMajorVersionInternal().
|
||
int DarwinMajorVersion() {
|
||
// base::OperatingSystemVersionNumbers calls Gestalt(), which is a
|
||
// higher-level function than is needed. It might perform unnecessary
|
||
// operations. On 10.6, it was observed to be able to spawn threads (see
|
||
// https://crbug.com/53200). It might also read files or perform other
|
||
// blocking operations. Actually, nobody really knows for sure just what
|
||
// Gestalt() might do, or what it might be taught to do in the future.
|
||
//
|
||
// uname(), on the other hand, is implemented as a simple series of sysctl()
|
||
// system calls to obtain the relevant data from the kernel. The data is
|
||
// compiled right into the kernel, so no threads or blocking or other funny
|
||
// business is necessary.
|
||
|
||
utsname uname_info;
|
||
int rv = uname(&uname_info);
|
||
PCHECK(rv == 0) << "uname";
|
||
|
||
DCHECK_EQ(strcmp(uname_info.sysname, "Darwin"), 0)
|
||
<< "unexpected sysname " << uname_info.sysname;
|
||
|
||
char* dot = strchr(uname_info.release, '.');
|
||
CHECK(dot);
|
||
|
||
int darwin_major_version = 0;
|
||
CHECK(base::StringToInt(
|
||
base::StringPiece(uname_info.release, dot - uname_info.release),
|
||
&darwin_major_version));
|
||
|
||
return darwin_major_version;
|
||
}
|
||
#endif // DT < 10.13.4
|
||
|
||
// Helpers for the weak-imported private CoreFoundation internals.
|
||
|
||
CFDictionaryRef TryCFCopySystemVersionDictionary() {
|
||
if (_CFCopySystemVersionDictionary) {
|
||
return _CFCopySystemVersionDictionary();
|
||
}
|
||
return nullptr;
|
||
}
|
||
|
||
const void* TryCFDictionaryGetValue(CFDictionaryRef dictionary,
|
||
const void* value) {
|
||
if (value) {
|
||
return CFDictionaryGetValue(dictionary, value);
|
||
}
|
||
return nullptr;
|
||
}
|
||
|
||
// Converts |version| to a triplet of version numbers on behalf of
|
||
// MacOSVersionNumber() and MacOSVersionComponents(). Returns true on success.
|
||
// If |version| does not have the expected format, returns false. |version| must
|
||
// be in the form "10.9.2" or just "10.9". In the latter case, |bugfix| will be
|
||
// set to 0.
|
||
bool StringToVersionNumbers(const std::string& version,
|
||
int* major,
|
||
int* minor,
|
||
int* bugfix) {
|
||
size_t first_dot = version.find_first_of('.');
|
||
if (first_dot == 0 || first_dot == std::string::npos ||
|
||
first_dot == version.length() - 1) {
|
||
LOG(ERROR) << "version has unexpected format";
|
||
return false;
|
||
}
|
||
if (!base::StringToInt(base::StringPiece(&version[0], first_dot), major)) {
|
||
LOG(ERROR) << "version has unexpected format";
|
||
return false;
|
||
}
|
||
|
||
size_t second_dot = version.find_first_of('.', first_dot + 1);
|
||
if (second_dot == version.length() - 1) {
|
||
LOG(ERROR) << "version has unexpected format";
|
||
return false;
|
||
} else if (second_dot == std::string::npos) {
|
||
second_dot = version.length();
|
||
}
|
||
|
||
if (!base::StringToInt(base::StringPiece(&version[first_dot + 1],
|
||
second_dot - first_dot - 1),
|
||
minor)) {
|
||
LOG(ERROR) << "version has unexpected format";
|
||
return false;
|
||
}
|
||
|
||
if (second_dot == version.length()) {
|
||
*bugfix = 0;
|
||
} else if (!base::StringToInt(
|
||
base::StringPiece(&version[second_dot + 1],
|
||
version.length() - second_dot - 1),
|
||
bugfix)) {
|
||
LOG(ERROR) << "version has unexpected format";
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
std::string IORegistryEntryDataPropertyAsString(io_registry_entry_t entry,
|
||
CFStringRef key) {
|
||
base::apple::ScopedCFTypeRef<CFTypeRef> property(
|
||
IORegistryEntryCreateCFProperty(entry, key, kCFAllocatorDefault, 0));
|
||
CFDataRef data = base::apple::CFCast<CFDataRef>(property);
|
||
if (data && CFDataGetLength(data) > 0) {
|
||
return reinterpret_cast<const char*>(CFDataGetBytePtr(data));
|
||
}
|
||
|
||
return std::string();
|
||
}
|
||
|
||
} // namespace
|
||
|
||
namespace crashpad {
|
||
|
||
int MacOSVersionNumber() {
|
||
static int macos_version_number = []() {
|
||
// kern.osproductversion is a lightweight way to get the operating system
|
||
// version from the kernel without having to open any files or spin up any
|
||
// threads, but it’s only available in macOS 10.13.4 and later.
|
||
std::string macos_version_number_string = ReadStringSysctlByName(
|
||
"kern.osproductversion",
|
||
__MAC_OS_X_VERSION_MIN_REQUIRED >= __MAC_10_13_4);
|
||
if (!macos_version_number_string.empty()) {
|
||
int major;
|
||
int minor;
|
||
int bugfix;
|
||
if (StringToVersionNumbers(
|
||
macos_version_number_string, &major, &minor, &bugfix)) {
|
||
DCHECK_GE(major, 10);
|
||
DCHECK_LE(major, 99);
|
||
DCHECK_GE(minor, 0);
|
||
DCHECK_LE(minor, 99);
|
||
DCHECK_GE(bugfix, 0);
|
||
DCHECK_LE(bugfix, 99);
|
||
return major * 1'00'00 + minor * 1'00 + bugfix;
|
||
}
|
||
}
|
||
|
||
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= __MAC_10_13_4
|
||
// On macOS 10.13.4 and later, the sysctlbyname above should have been
|
||
// successful.
|
||
NOTREACHED();
|
||
return -1;
|
||
#else // DT >= 10.13.4
|
||
// The Darwin major version is always 4 greater than the macOS minor version
|
||
// for Darwin versions beginning with 6, corresponding to Mac OS X 10.2,
|
||
// through Darwin 19, corresponding to macOS 10.15.
|
||
int darwin_major_version = DarwinMajorVersion();
|
||
DCHECK_GE(darwin_major_version, 6);
|
||
DCHECK_LE(darwin_major_version, 19);
|
||
|
||
int macos_version_number = 10'00'00 + (darwin_major_version - 4) * 1'00;
|
||
|
||
// On macOS 10.13.4 and later, the sysctlbyname above should have been
|
||
// successful.
|
||
DCHECK_LT(macos_version_number, 10'13'04);
|
||
|
||
return macos_version_number;
|
||
#endif // DT >= 10.13.4
|
||
}();
|
||
|
||
return macos_version_number;
|
||
}
|
||
|
||
bool MacOSVersionComponents(int* major,
|
||
int* minor,
|
||
int* bugfix,
|
||
std::string* build,
|
||
std::string* version_string) {
|
||
base::apple::ScopedCFTypeRef<CFDictionaryRef> dictionary(
|
||
TryCFCopySystemVersionDictionary());
|
||
if (!dictionary) {
|
||
LOG(ERROR) << "_CFCopySystemVersionDictionary failed";
|
||
return false;
|
||
}
|
||
|
||
bool success = true;
|
||
|
||
CFStringRef version_cf = base::apple::CFCast<CFStringRef>(
|
||
TryCFDictionaryGetValue(dictionary, _kCFSystemVersionProductVersionKey));
|
||
std::string version;
|
||
if (!version_cf) {
|
||
LOG(ERROR) << "version_cf not found";
|
||
success = false;
|
||
} else {
|
||
version = base::SysCFStringRefToUTF8(version_cf);
|
||
if (!StringToVersionNumbers(version, major, minor, bugfix)) {
|
||
success = false;
|
||
} else {
|
||
DCHECK_GE(*major, 10);
|
||
DCHECK_LE(*major, 99);
|
||
DCHECK_GE(*minor, 0);
|
||
DCHECK_LE(*minor, 99);
|
||
DCHECK_GE(*bugfix, 0);
|
||
DCHECK_LE(*bugfix, 99);
|
||
}
|
||
}
|
||
|
||
CFStringRef build_cf = base::apple::CFCast<CFStringRef>(
|
||
TryCFDictionaryGetValue(dictionary, _kCFSystemVersionBuildVersionKey));
|
||
if (!build_cf) {
|
||
LOG(ERROR) << "build_cf not found";
|
||
success = false;
|
||
} else {
|
||
build->assign(base::SysCFStringRefToUTF8(build_cf));
|
||
}
|
||
|
||
CFStringRef product_cf = base::apple::CFCast<CFStringRef>(
|
||
TryCFDictionaryGetValue(dictionary, _kCFSystemVersionProductNameKey));
|
||
std::string product;
|
||
if (!product_cf) {
|
||
LOG(ERROR) << "product_cf not found";
|
||
success = false;
|
||
} else {
|
||
product = base::SysCFStringRefToUTF8(product_cf);
|
||
}
|
||
|
||
// This key is not required, and in fact is normally not present.
|
||
CFStringRef extra_cf =
|
||
base::apple::CFCast<CFStringRef>(TryCFDictionaryGetValue(
|
||
dictionary, _kCFSystemVersionProductVersionExtraKey));
|
||
std::string extra;
|
||
if (extra_cf) {
|
||
extra = base::SysCFStringRefToUTF8(extra_cf);
|
||
}
|
||
|
||
if (!product.empty() || !version.empty() || !build->empty()) {
|
||
if (!extra.empty()) {
|
||
version_string->assign(base::StringPrintf("%s %s %s (%s)",
|
||
product.c_str(),
|
||
version.c_str(),
|
||
extra.c_str(),
|
||
build->c_str()));
|
||
} else {
|
||
version_string->assign(base::StringPrintf(
|
||
"%s %s (%s)", product.c_str(), version.c_str(), build->c_str()));
|
||
}
|
||
}
|
||
|
||
return success;
|
||
}
|
||
|
||
void MacModelAndBoard(std::string* model, std::string* board_id) {
|
||
base::mac::ScopedIOObject<io_service_t> platform_expert(
|
||
IOServiceGetMatchingService(kIOMasterPortDefault,
|
||
IOServiceMatching("IOPlatformExpertDevice")));
|
||
if (platform_expert) {
|
||
model->assign(
|
||
IORegistryEntryDataPropertyAsString(platform_expert, CFSTR("model")));
|
||
#if defined(ARCH_CPU_X86_FAMILY)
|
||
CFStringRef kBoardProperty = CFSTR("board-id");
|
||
#elif defined(ARCH_CPU_ARM64)
|
||
// TODO(https://crashpad.chromium.org/bug/352): When production arm64
|
||
// hardware is available, determine whether board-id works and switch to it
|
||
// if feasible, otherwise, determine whether target-type remains a viable
|
||
// alternative.
|
||
CFStringRef kBoardProperty = CFSTR("target-type");
|
||
#endif
|
||
board_id->assign(
|
||
IORegistryEntryDataPropertyAsString(platform_expert, kBoardProperty));
|
||
} else {
|
||
model->clear();
|
||
board_id->clear();
|
||
}
|
||
}
|
||
|
||
} // namespace crashpad
|