55 lines
2.3 KiB
C++
55 lines
2.3 KiB
C++
// Copyright 2023 Microsoft, Inc.
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// Copyright 2013 The Chromium Authors
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "shell/common/mac/codesign_util.h"
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#include "base/apple/osstatus_logging.h"
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#include "base/apple/scoped_cftyperef.h"
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#include <CoreFoundation/CoreFoundation.h>
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#include <Security/Security.h>
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namespace electron {
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bool ProcessBelongToCurrentApp(pid_t pid) {
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// Get and check the code signature of current app.
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base::apple::ScopedCFTypeRef<SecCodeRef> self_code;
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OSStatus status =
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SecCodeCopySelf(kSecCSDefaultFlags, self_code.InitializeInto());
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if (status != errSecSuccess) {
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OSSTATUS_LOG(ERROR, status) << "SecCodeCopyGuestWithAttributes";
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return false;
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}
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// Get the code signature of process.
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base::apple::ScopedCFTypeRef<CFNumberRef> process_cf(
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CFNumberCreate(nullptr, kCFNumberIntType, &pid));
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const void* attribute_keys[] = {kSecGuestAttributePid};
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const void* attribute_values[] = {process_cf.get()};
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base::apple::ScopedCFTypeRef<CFDictionaryRef> attributes(CFDictionaryCreate(
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nullptr, attribute_keys, attribute_values, std::size(attribute_keys),
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&kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
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base::apple::ScopedCFTypeRef<SecCodeRef> process_code;
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status = SecCodeCopyGuestWithAttributes(nullptr, attributes.get(),
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kSecCSDefaultFlags,
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process_code.InitializeInto());
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if (status != errSecSuccess) {
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OSSTATUS_LOG(ERROR, status) << "SecCodeCopyGuestWithAttributes";
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return false;
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}
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// Get the requirement of current app's code signature.
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base::apple::ScopedCFTypeRef<SecRequirementRef> self_requirement;
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status = SecCodeCopyDesignatedRequirement(self_code.get(), kSecCSDefaultFlags,
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self_requirement.InitializeInto());
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if (status != errSecSuccess) {
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OSSTATUS_LOG(ERROR, status) << "SecCodeCopyDesignatedRequirement";
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return false;
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}
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// Check whether the process meets the signature requirement of current app.
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status = SecCodeCheckValidity(process_code.get(), kSecCSDefaultFlags,
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self_requirement.get());
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return status == errSecSuccess;
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}
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} // namespace electron
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