4155585267
It now can hold a right bit used during IPC to demote rights of the to be transfered capability. The local_name field in the native_capability type is not needed anymore in NOVA. Simplify the class, remove it from constructors and adapt all invocations in base-nova. Unfortunately local_name in struct Raw is still used in generic base code (process.cc, reload_parent_cap.cc), however has no effect in base-nova.
71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
/*
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* \brief Capability allocation service
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* \author Alexander Boettcher
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* \date 2012-07-27
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*/
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/*
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* Copyright (C) 2006-2012 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _CORE__INCLUDE__CAP_SESSION_COMPONENT_H_
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#define _CORE__INCLUDE__CAP_SESSION_COMPONENT_H_
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#include <cap_session/cap_session.h>
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#include <base/rpc_server.h>
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#include <base/lock.h>
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namespace Genode {
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class Cap_session_component : public Rpc_object<Cap_session>
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{
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private:
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static long _unique_id_cnt;
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static Lock &_lock()
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{
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static Lock static_lock;
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return static_lock;
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}
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public:
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Native_capability alloc(Native_capability ep,
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addr_t entry,
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addr_t mtd)
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{
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addr_t pt_sel = cap_selector_allocator()->alloc(0);
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addr_t pd_sel = Platform_pd::pd_core_sel();
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addr_t ec_sel = ep.local_name();
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using namespace Nova;
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/* create portal */
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uint8_t res = create_pt(pt_sel, pd_sel, ec_sel,
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Mtd(mtd), entry);
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if (res == NOVA_OK)
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return Native_capability(pt_sel);
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PERR("cap_session - cap=%lx:%lx"
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" addr=%lx flags=%lx xpt=%lx res=%u",
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ec_sel, ep.local_name(),
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entry, mtd, pt_sel, res);
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/* cleanup unused selectors */
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cap_selector_allocator()->free(pt_sel, 0);
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/* XXX revoke ec_sel if it was mapped !!!! */
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return Native_capability::invalid_cap();
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}
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void free(Native_capability cap) { }
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};
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}
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#endif /* _CORE__INCLUDE__CAP_SESSION_COMPONENT_H_ */
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