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1c4c1277e8
Add a method to the ProcessSnapshot to expose a ProcessMemory object to allow reading memory directly from the underlying process. CQ-DEPEND=CL:1278830 BUG=crashpad:262 Change-Id: Ied2a5510a9b051c7ac8c41cdd060e8daa531086e Reviewed-on: https://chromium-review.googlesource.com/c/1315428 Commit-Queue: Vlad Tsyrklevich <vtsyrklevich@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
107 lines
4.4 KiB
C++
107 lines
4.4 KiB
C++
// Copyright 2018 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef CRASHPAD_SNAPSHOT_SANITIZED_PROCESS_SNAPSHOT_SANITIZED_H_
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#define CRASHPAD_SNAPSHOT_SANITIZED_PROCESS_SNAPSHOT_SANITIZED_H_
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#include <memory>
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#include <string>
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#include <vector>
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#include "base/macros.h"
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#include "snapshot/exception_snapshot.h"
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#include "snapshot/process_snapshot.h"
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#include "snapshot/sanitized/module_snapshot_sanitized.h"
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#include "snapshot/sanitized/thread_snapshot_sanitized.h"
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#include "snapshot/thread_snapshot.h"
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#include "snapshot/unloaded_module_snapshot.h"
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#include "util/misc/address_types.h"
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#include "util/misc/initialization_state_dcheck.h"
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#include "util/misc/range_set.h"
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namespace crashpad {
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//! \brief A ProcessSnapshot which wraps and filters sensitive information from
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//! another ProcessSnapshot.
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class ProcessSnapshotSanitized final : public ProcessSnapshot {
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public:
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ProcessSnapshotSanitized();
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~ProcessSnapshotSanitized() override;
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//! \brief Initializes this object.
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//!
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//! This method must be successfully called before calling any other method on
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//! this object.
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//!
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//! \param[in] snapshot The ProcessSnapshot to sanitize.
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//! \param[in] annotations_whitelist A list of annotations names to allow to
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//! be returned by AnnotationsSimpleMap() or from this object's module
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//! snapshots. If `nullptr`, all annotations will be returned.
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//! \param[in] target_module_address An address in the target process'
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//! address space within the bounds of a module to target. If the
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//! crashing thread's context and stack do not contain any pointers into
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//! this module's address range, this method will return `false`. If this
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//! value is 0, this method will not check the context or stack for
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//! references to any particular module.
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//! \param[in] sanitize_stacks If `true`, the MemorySnapshots for each
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//! thread's stack will be filtered using an
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//! internal::StackSnapshotSanitized.
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//! \return `false` if \a snapshot does not meet sanitization requirements and
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//! should be filtered entirely. Otherwise `true`.
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bool Initialize(const ProcessSnapshot* snapshot,
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const std::vector<std::string>* annotations_whitelist,
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VMAddress target_module_address,
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bool sanitize_stacks);
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// ProcessSnapshot:
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pid_t ProcessID() const override;
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pid_t ParentProcessID() const override;
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void SnapshotTime(timeval* snapshot_time) const override;
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void ProcessStartTime(timeval* start_time) const override;
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void ProcessCPUTimes(timeval* user_time, timeval* system_time) const override;
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void ReportID(UUID* report_id) const override;
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void ClientID(UUID* client_id) const override;
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const std::map<std::string, std::string>& AnnotationsSimpleMap()
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const override;
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const SystemSnapshot* System() const override;
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std::vector<const ThreadSnapshot*> Threads() const override;
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std::vector<const ModuleSnapshot*> Modules() const override;
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std::vector<UnloadedModuleSnapshot> UnloadedModules() const override;
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const ExceptionSnapshot* Exception() const override;
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std::vector<const MemoryMapRegionSnapshot*> MemoryMap() const override;
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std::vector<HandleSnapshot> Handles() const override;
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std::vector<const MemorySnapshot*> ExtraMemory() const override;
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const ProcessMemory* Memory() const override;
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private:
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// Only used when annotations_whitelist_ != nullptr.
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std::vector<std::unique_ptr<internal::ModuleSnapshotSanitized>> modules_;
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// Only used when sanitize_stacks_ == true.
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std::vector<std::unique_ptr<internal::ThreadSnapshotSanitized>> threads_;
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RangeSet address_ranges_;
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const ProcessSnapshot* snapshot_;
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const std::vector<std::string>* annotations_whitelist_;
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bool sanitize_stacks_;
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InitializationStateDcheck initialized_;
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DISALLOW_COPY_AND_ASSIGN(ProcessSnapshotSanitized);
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};
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} // namespace crashpad
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#endif // CRASHPAD_SNAPSHOT_SANITIZED_PROCESS_SNAPSHOT_SANITIZED_H_
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