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88e3706474
Capability checking for thread_control, exregs, mutex, cap_control,
ipc, and map system calls.
The visualised model is implemented in code that compiles, but
actual functionality hasn't been tested.
Need to add:
- Dynamic assignment of initial resources matching with what's
defined in the configuration.
- A paged-thread-group, since that would be a logical group of
seperation from a capability point-of-view.
- Resource ids for various tasks. E.g.
- Memory capabilities don't have target resources.
- Thread capability assumes current container for THREAD_CREATE.
- Mutex syscall assumes current thread (this one may not need
any changing)
- cap_control syscall assumes current thread. It may happen to
be that another thread's capability list is manipulated.
Last but not least:
- A simple and easy-to-use userspace library for dynamic expansion
of resource domains as new resources are created such as threads.
24 lines
639 B
C
24 lines
639 B
C
/*
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* Syscall API for capability manipulation
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*
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* Copyright (C) 2009 Bahadir Balban
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*/
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#ifndef __API_CAPABILITY_H__
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#define __API_CAPABILITY_H__
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/* Capability syscall request types */
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#define CAP_CONTROL_NCAPS 0x00
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#define CAP_CONTROL_READ 0x01
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#define CAP_CONTROL_SHARE 0x02
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#define CAP_CONTROL_GRANT 0x03
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#define CAP_CONTROL_MODIFY 0x05
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#define CAP_SHARE_MASK 0x1F
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#define CAP_SHARE_SPACE 0x01
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#define CAP_SHARE_CONTAINER 0x02
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#define CAP_SHARE_GROUP 0x04
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#define CAP_SHARE_CHILD 0x08 /* All that we are pager of */
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#define CAP_SHARE_SIBLING 0x10 /* All that have a common pager */
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#endif /* __API_CAPABILITY_H__ */
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