534584945c
With this patch, the IPC service is changed to use the new RMIB facility to register and handle the "kern.ipc" sysctl subtree itself. The subtree was previously handled by the MIB service directly. This change improves locality of handling: especially the kern.ipc.sysvipc_info node has some peculiarities specific to the IPC service and is therefore better handled there. Also, since the IPC service is essentially optional to the system, this rearrangement yields a cleaner situation when the IPC service is not running: in that case, the MIB service will expose a few basic kern.ipc nodes indicating that no SysV IPC facilities are present. Those nodes will be overridden through RMIB when the IPC service is running. It should be easier to add the remaining (from NetBSD) kern.ipc nodes as well now. Test88 is extended with a new subtest that verifies that sysctl-based information retrieval for semaphore sets works as expected. Change-Id: I6b7730e85305b64cfd8418c0cc56bde64b22c584
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
#define _SYSTEM 1 /* get OK and negative error codes */
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#include <minix/callnr.h>
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#include <minix/com.h>
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#include <minix/config.h>
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#include <minix/ipc.h>
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#include <minix/endpoint.h>
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#include <minix/sysutil.h>
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#include <minix/const.h>
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#include <minix/type.h>
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#include <minix/syslib.h>
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#include <minix/rmib.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <sys/sem.h>
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#include <sys/stat.h>
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#include <sys/queue.h>
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#include <sys/mman.h>
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#include <machine/param.h>
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#include <machine/vm.h>
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#include <machine/vmparam.h>
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#include <lib.h>
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#include <time.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <signal.h>
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#include <assert.h>
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/*
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* On NetBSD, these macros are only defined when _KERNEL is set. However,
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* since ipcs(1) uses IXSEQ_TO_IPCID, NetBSD cannot change these macros without
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* breaking the userland API. Thus, having a copy of them here is not risky.
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*/
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#define IPCID_TO_IX(id) ((id) & 0xffff)
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#define IPCID_TO_SEQ(id) (((id) >> 16) & 0xffff)
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/* main.c */
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void update_sem_sub(int);
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/* shm.c */
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int do_shmget(message *);
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int do_shmat(message *);
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int do_shmdt(message *);
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int do_shmctl(message *);
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int get_shm_mib_info(struct rmib_oldp *);
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int is_shm_nil(void);
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void update_refcount_and_destroy(void);
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/* sem.c */
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int do_semget(message *);
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int do_semctl(message *);
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int do_semop(message *);
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int get_sem_mib_info(struct rmib_oldp *);
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int is_sem_nil(void);
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void sem_process_event(endpoint_t, int);
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/* utility.c */
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int check_perm(struct ipc_perm *, endpoint_t, int);
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void prepare_mib_perm(struct ipc_perm_sysctl *, const struct ipc_perm *);
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