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Kernel: Implement unveil() as a prefix-tree

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Fixes #4530.
This commit is contained in:
AnotherTest 2020-12-26 13:54:34 +03:30 • committed by Andreas Kling
parent cb3348191b
commit a9184fcb76
8 changed files with 192 additions and 58 deletions
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18
Kernel/Process.h
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@ -44,6 +44,7 @@
#include <Kernel/Thread.h>
#include <Kernel/ThreadTracer.h>
#include <Kernel/UnixTypes.h>
#include <Kernel/UnveilNode.h>
#include <Kernel/VM/RangeAllocator.h>
#include <LibC/signal_numbers.h>
@ -91,19 +92,6 @@ enum class VeilState {
Locked,
};
struct UnveiledPath {
enum Access {
Read = 1,
Write = 2,
Execute = 4,
CreateOrRemove = 8,
Browse = 16,
};
String path;
unsigned permissions { 0 };
};
class Process
: public RefCounted<Process>
, public InlineLinkedListNode<Process>
@ -498,7 +486,7 @@ public:
{
return m_veil_state;
}
const Vector<UnveiledPath>& unveiled_paths() const
const UnveilNode& unveiled_paths() const
{
return m_unveiled_paths;
}
@ -652,7 +640,7 @@ private:
u32 m_execpromises { 0 };
VeilState m_veil_state { VeilState::None };
Vector<UnveiledPath> m_unveiled_paths;
UnveilNode m_unveiled_paths { "/", { "/" } };
WaitQueue& futex_queue(Userspace<const i32*>);
HashMap<u32, OwnPtr<WaitQueue>> m_futex_queues;