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[zion] Begin requiring capability transmit permission.

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As a first pass require the permission when passing a capability to a
new process.
This commit is contained in:
Drew Galbraith 2023-08-01 18:37:17 -07:00
parent f0a27d30be
commit 4e9ad6a516
3 changed files with 10 additions and 5 deletions
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3
zion/syscall/memory_object.cpp
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@ -39,6 +39,7 @@ z_err_t MemoryObjectDuplicate(ZMemoryObjectDuplicateReq* req) {
ASSIGN_OR_RETURN(
glcr::RefPtr<MemoryObject> new_vmmo,
vmmo_cap->obj<MemoryObject>()->Duplicate(req->base_offset, req->length));
*req->new_vmmo_cap = curr_proc.AddNewCapability(new_vmmo);
*req->new_vmmo_cap =
curr_proc.AddNewCapability(new_vmmo, vmmo_cap->permissions());
return glcr::OK;
}