54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/* The kernel call implemented in this file:
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* m_type: SYS_STATECTL
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*
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* The parameters for this kernel call are:
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* m_lsys_krn_sys_statectl.request (state control request)
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*/
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#include "kernel/system.h"
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#if USE_STATECTL
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/*===========================================================================*
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* do_statectl *
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*===========================================================================*/
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int do_statectl(struct proc * caller, message * m_ptr)
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{
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/* Handle sys_statectl(). A process has issued a state control request. */
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switch(m_ptr->m_lsys_krn_sys_statectl.request)
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{
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case SYS_STATE_CLEAR_IPC_REFS:
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/* Clear IPC references for all the processes communicating
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* with the caller.
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*/
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clear_ipc_refs(caller, EDEADSRCDST);
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return(OK);
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case SYS_STATE_SET_STATE_TABLE:
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/* Set state table for the caller. */
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priv(caller)->s_state_table = (vir_bytes) m_ptr->m_lsys_krn_sys_statectl.address;
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priv(caller)->s_state_entries = m_ptr->m_lsys_krn_sys_statectl.length;
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return(OK);
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case SYS_STATE_ADD_IPC_BL_FILTER:
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/* Add an IPC blacklist filter for the caller. */
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return add_ipc_filter(caller, IPCF_BLACKLIST,
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(vir_bytes) m_ptr->m_lsys_krn_sys_statectl.address,
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m_ptr->m_lsys_krn_sys_statectl.length);
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case SYS_STATE_ADD_IPC_WL_FILTER:
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/* Add an IPC whitelist filter for the caller. */
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return add_ipc_filter(caller, IPCF_WHITELIST,
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(vir_bytes) m_ptr->m_lsys_krn_sys_statectl.address,
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m_ptr->m_lsys_krn_sys_statectl.length);
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case SYS_STATE_CLEAR_IPC_FILTERS:
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/* Clear any IPC filter for the caller. */
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clear_ipc_filters(caller);
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return OK;
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default:
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printf("do_statectl: bad request %d\n",
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m_ptr->m_lsys_krn_sys_statectl.request);
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return EINVAL;
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}
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}
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#endif /* USE_STATECTL */
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