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Kernel: Add "video" pledge for accessing framebuffer devices
WindowServer becomes the only user.
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parent
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5 changed files with 28 additions and 23 deletions
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@ -46,6 +46,7 @@ extern VirtualAddress g_return_to_ring3_from_signal_trampoline;
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__ENUMERATE_PLEDGE_PROMISE(chown) \
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__ENUMERATE_PLEDGE_PROMISE(chroot) \
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__ENUMERATE_PLEDGE_PROMISE(thread) \
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__ENUMERATE_PLEDGE_PROMISE(video) \
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__ENUMERATE_PLEDGE_PROMISE(shared_buffer)
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enum class Pledge : u32 {
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@ -567,3 +568,24 @@ inline u32 Thread::effective_priority() const
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{
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return m_priority + m_process.priority_boost() + m_priority_boost + m_extra_priority;
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}
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#define REQUIRE_NO_PROMISES \
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do { \
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if (current->process().has_promises()) { \
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dbg() << *current << " has made a promise"; \
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cli(); \
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current->process().crash(SIGABRT, 0); \
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ASSERT_NOT_REACHED(); \
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} \
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} while (0)
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#define REQUIRE_PROMISE(promise) \
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do { \
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if (current->process().has_promises() \
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&& !current->process().has_promised(Pledge::promise)) { \
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dbg() << *current << " has not pledged " << #promise; \
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cli(); \
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current->process().crash(SIGABRT, 0); \
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ASSERT_NOT_REACHED(); \
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} \
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} while (0)
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