/* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
# java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44 #define mozilla_freestanding_SharedSection_h<>)\
#include"mozilla/DynamicBlocklist.h"
/java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 # mozilla"
// clang-format off #define explicit(const& aTarget:mTarget&aTarget) {
{
/ sizeof(s) sizeofwchar_t\ /* Length of the string in bytes, including the null terminator */ \ sizeof(s), /* Pointer to the buffer */ \ const_cast: ::::Kernel32Exportsjava.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
} // clang-format on
namespace mozilla { namespace freestanding { class// layout is represented as SharedSection::Layout.
struct Formatted as// (2) Various flags and offsets explicit// are mNumBlockEntries of these, followed by one that has mName.Length
: mTarget(&aTarget) {}
intoperator// after the last entry. The mName pointers in each DllBlockInfo point returnstatic_cast<int>(
// Formatted as // an empty string. These entries start at offset
}
// This class calculates RVAs of kernel32's functions and transfers them // to a target process, where the transferred RVAs are resolved into // function addresses so that the target process can use them after // kernel32.dll is loaded and before IAT is resolved. struct// | | State // +--------// | (2) | (flags and offsets) // +--------------------------------------------------------------+// | (3) | <DllBlockInfo for first entry in dynamic blocklist> |
: interceptor::MMPolicyInProcessEarlyStage::// | | L"string1.dllstring2.dll...stringlast.dll" | void Init(); bool Resolve// | | L"NT path 2" |
};
// This class manages a section which is created in the launcher process and // mapped in the browser process and the sandboxed processes. The section's // layout is represented as SharedSection::Layout. // // (1) Kernel32's functions required for MMPolicyInProcessEarlyStage // Formatted as Kernel32ExportsSolver. // // (2) Various flags and offsets // // (3) Entries in the dynamic blocklist, in DllBlockInfo format. There // are mNumBlockEntries of these, followed by one that has mName.Length // of 0. Note that the strings that contain // the names of the entries in the blocklist are stored concatenated // after the last entry. The mName pointers in each DllBlockInfo point // to these strings correctly in Resolve(), so clients don't need // to do anything special to read these strings. // // (4) Array of NT paths of the executable's dependent modules // Formatted as a null-delimited wide-character string set ending with // an empty string. These entries start at offset // mDependentModulePathArrayStart (in bytes) from the beginning // of the structure // // +--------------------------------------------------------------+ // | (1) | FlushInstructionCache | // | | GetModuleHandleW | // | | GetSystemInfo | // | | VirtualProtect | // | | State [kUninitialized|kInitialized|kResolved] | // +--------------------------------------------------------------+ // | (2) | (flags and offsets) | // +--------------------------------------------------------------+ // | (3) | <DllBlockInfo for first entry in dynamic blocklist> | // | | <DllBlockInfo for second entry in dynamic blocklist> | // | | ... | // | | <DllBlockInfo for last entry in dynamic blocklist> | // | | <DllBlockInfo with mName.Length of 0> | // | | L"string1.dllstring2.dll...stringlast.dll" | // +--------------------------------------------------------------+ // | (4) | L"NT path 1" | // | | L"NT path 2" | // | | ... | // | | L"" | // +--------------------------------------------------------------+ class (); struct } enumclass State {
kUninitialized,
kInitialized,
kLoadedDynamicBlocklistEntries,
kResolved,
} mState;
/ // If the blocklist is disabled, the entries are still loaded to make it kSharedViewSize (,)/
(;
(java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28 // Stored as a uint32_t for alignment reasons.
java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34 / The offset, in bytes, from the beginning of the Layout structure to the // first dependent module entry. // When the Layout object is created, this value is 0, indicating that no // dependent modules have been added and it is safe to add DllBlockInfo // entries.
/ // can be added.
uint32_t/ // The number of blocklist entries.static sSectionHandle
uint32_t mNumBlockEntries sEnsureOnce
DllBlockInfo
Span change nor get closed, sEnsureOnce will not get reinitialized, and return sLock on paths that could run concurrently with ConvertToReadOnly(). This
mFirstBlockEntry
( -(<uintptr_t()- reinterpret_cast<uintptr_t>(this))) /
(DllBlockInfo)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
} static Layout* EnsureWriteCopyView(bool requireKernel32Exports = false);
/ . static
java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71 sizeof);
}
Layout() =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 boolstatic Reset );
IsDisabled; const DllBlockInfo ::{sLock
Span
};
// As we define a global variable of this class and use it in our blocklist // which is excuted in a process's early stage. If we have a complex dtor, // the static initializer tries to register that dtor with onexit() of // ucrtbase.dll which is not loaded yet, resulting in crash. Thus, we have // a raw handle and a pointer as a static variable and manually release them // by calling Reset() where possible. staticstatic AddDependentModule ); static*; static RTL_RUN_ONCE isDisabled
// The sLock lock guarantees that while it is held, sSectionHandle will not / to each structure, or null if Layout failed to resolve exports.
/java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
// method is only called on the main process, and very early, so the only // real risk here should be threads started by third-party products reaching // our patched_NtMapViewOfSection (see bug 1850969). static:SRWLock;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
requireKernel32Exports);
:CrossExecTransferManager , aDesiredAccess
; friendclass SharedSectionTestHelper;
public: // Replace |sSectionHandle| with a given handle. static// namespace freestanding
static# return nt::AutoSharedLock{sLock};
}
// Replace |sSectionHandle| with a new readonly handle. staticvoid ConvertToReadOnly();
// Create a new writable section and initialize the Kernel32ExportsSolver // part. static LauncherVoidResult Init();
// Append a new string to the |sSectionHandle| static LauncherVoidResult AddDependentModule(PCUNICODE_STRING aNtPath); static LauncherVoidResult SetBlocklist(const DynamicBlockList& aBlocklist, bool isDisabled);
// Map |sSectionHandle| to a copy-on-write page and return a writable pointer // to each structure, or null if Layout failed to resolve exports.
Kernel32ExportsSolver* GetKernel32Exports();
Maybe<Vector<constwchar_t*>> GetDependentModules() final override;
Span<const DllBlockInfo> GetDynamicBlocklist() final override;
// Transfer |sSectionHandle| to a process associated with |aTransferMgr|. static LauncherVoidResult TransferHandle(
nt::CrossExecTransferManager& aTransferMgr, DWORD aDesiredAccess,
HANDLE* aDestinationAddress = &sSectionHandle);
};
extern SharedSection gSharedSection;
} // namespace freestanding
} // namespace mozilla
#endif// mozilla_freestanding_SharedSection_h
Messung V0.5
¤ Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.0.5Bemerkung:
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.