s0_ParentProtocol Class Reference

#include <parent_protocol.h>

Inheritance diagram for s0_ParentProtocol:

Classes
struct	ClientData
	Missing: kill a client, mem+cap quota support. More...
struct	ServerData

Public Member Functions
unsigned	portal_func (Utcb &utcb, Utcb::Frame &input, bool &free_cap, cap_sel pid)
	s0_ParentProtocol (unsigned cap_start, unsigned cap_order, unsigned cap_all_start, unsigned cap_all_order)
	The first set of caps is used by ParentProtocol for internal stuff, the second range is the client capability range, which includes the first.
unsigned	alloc_crd ()
template<class T >
unsigned	create_pt_per_client (unsigned base, T *__sigma0)
template<class T >
unsigned	create_threads (T *__sigma0)
Public Member Functions inherited from CapAllocator
	CapAllocator (unsigned long cap_, unsigned long cap_start, unsigned long cap_order)
unsigned	alloc_cap (unsigned count=1)
void	dealloc_cap (unsigned cap, unsigned count=1)

Public Attributes
unsigned	_cap_all_start
unsigned	_cap_all_order
unsigned	cap_ec_parent
Public Attributes inherited from CapAllocator
unsigned long	_cap_
unsigned long	_cap_start
unsigned long	_cap_order

Private Types
typedef ClientDataStorage < ClientData, s0_ParentProtocol, false > ::Guard	GuardC
typedef ClientDataStorage < ServerData, s0_ParentProtocol, false > ::Guard	GuardS

Private Member Functions
	ALIGNED (8) ClientDataStorage< ClientData
	ALIGNED (8) ClientDataStorage< ServerData
	client "registry" of sessions to services
unsigned	get_portal (Utcb &utcb, unsigned cap_client, unsigned &portal)
unsigned	check_permission (unsigned identity, const char *request, unsigned request_len, unsigned instance, char const *&cmdline, unsigned &namelen)
	Check whether a client has the permission to access a service.
unsigned	free_service (Utcb &utcb, ServerData *sdata)
void	notify_service (Utcb &utcb, ClientData *c)

Static Private Member Functions
static char const *	get_client_cmdline (unsigned identity, unsigned long &s0_cmdlen)
static char *	get_client_memory (unsigned identity, unsigned client_mem_revoke)
static unsigned	get_client_number (unsigned cap)
	Service "registry".

Private Attributes
struct {
unsigned   cap_ec_parent
}	_percpu [MAXCPUS]
	s0_ParentProtocol
false	session
false	_server

Member Typedef Documentation

typedef ClientDataStorage<ClientData, s0_ParentProtocol, false>::Guard s0_ParentProtocol::GuardC

private

typedef ClientDataStorage<ServerData, s0_ParentProtocol, false>::Guard s0_ParentProtocol::GuardS

private

Constructor & Destructor Documentation

s0_ParentProtocol::s0_ParentProtocol ( unsigned  cap_start, unsigned  cap_order, unsigned  cap_all_start, unsigned  cap_all_order  )

inline

The first set of caps is used by ParentProtocol for internal stuff, the second range is the client capability range, which includes the first.

We need those two to be in a single naturally aligned block in order to create a translation window that spans both.

Member Function Documentation

s0_ParentProtocol::ALIGNED ( 8  )

private

s0_ParentProtocol::ALIGNED ( 8  )

private

client "registry" of sessions to services

unsigned s0_ParentProtocol::alloc_crd ( )

inline

unsigned s0_ParentProtocol::check_permission ( unsigned  identity, const char *  request, unsigned  request_len, unsigned  instance, char const *&  cmdline, unsigned &  namelen  )

inlineprivate

Check whether a client has the permission to access a service.

Parse the client's cmdline for "name::" prefixes and check whether the postfix matches the requested name. In the current implementation, it is only checked whether the trailing part of the postfix (without the namespace) matches the requested name.

Parameters

	identity	The identity of the client (i.e. ParentProtocol::CAP_PARENT_ID)
	request	Name of the requested service
	request_len	Length of the name
	instance	Which instance of the service is requested
[out]	cmdline	Pointer to the postfix of the matching "name::" parameter (including the namespace)
[out]	namelen	The length the postfix

template<class T >

unsigned s0_ParentProtocol::create_pt_per_client ( unsigned  base, T *  __sigma0  )

inline

template<class T >

unsigned s0_ParentProtocol::create_threads ( T *  __sigma0 )

inline

unsigned s0_ParentProtocol::free_service ( Utcb &  utcb, ServerData *  sdata  )

inlineprivate

char const * s0_ParentProtocol::get_client_cmdline ( unsigned  identity, unsigned long &  s0_cmdlen  )

staticprivate

char * s0_ParentProtocol::get_client_memory ( unsigned  identity, unsigned  client_mem_revoke  )

staticprivate

static unsigned s0_ParentProtocol::get_client_number ( unsigned  cap )

inlinestaticprivate

Service "registry".

unsigned s0_ParentProtocol::get_portal ( Utcb &  utcb, unsigned  cap_client, unsigned &  portal  )

inlineprivate

void s0_ParentProtocol::notify_service ( Utcb &  utcb, ClientData *  c  )

inlineprivate

unsigned s0_ParentProtocol::portal_func ( Utcb &  utcb, Utcb::Frame &  input, bool &  free_cap, cap_sel  pid  )

inline

Member Data Documentation

unsigned s0_ParentProtocol::_cap_all_order

unsigned s0_ParentProtocol::_cap_all_start

struct { ... } s0_ParentProtocol::_percpu[MAXCPUS]

false s0_ParentProtocol::_server

private

unsigned s0_ParentProtocol::cap_ec_parent

s0_ParentProtocol::s0_ParentProtocol

private

false s0_ParentProtocol::session

private

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The documentation for this class was generated from the following files:

• base/apps/sigma0/parent_protocol.h
• base/apps/sigma0/sigma0.cc