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72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#ifndef _SYS_DMU_CTL_H
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#define _SYS_DMU_CTL_H
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#include <sys/types.h>
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/* Default directory where the clients search for sockets to connect */
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#define DMU_CTL_DEFAULT_DIR "/var/run/zfs/udmu"
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/*
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* These functions are called by the server process.
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*
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* kernel_init() must be called before dctl_server_init().
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* kernel_fini() must not be called before dctl_server_fini().
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*
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* All objsets must be closed and object references be released before calling
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* dctl_server_fini(), otherwise it will return EBUSY.
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*
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* Note: On Solaris, it is highly recommended to either catch or ignore the
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* SIGPIPE signal, otherwise the server process will die if the client is
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* killed.
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*/
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int dctl_server_init(const char *cfg_dir, int min_threads,
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int max_free_threads);
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int dctl_server_fini();
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/*
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* The following functions are called by the DMU from the server process context
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* (in the worker threads).
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*/
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int dctls_copyin(const void *src, void *dest, size_t size);
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int dctls_copyinstr(const char *from, char *to, size_t max,
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size_t *len);
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int dctls_copyout(const void *src, void *dest, size_t size);
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int dctls_fd_read(int fd, void *buf, ssize_t len, ssize_t *residp);
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int dctls_fd_write(int fd, const void *src, ssize_t len);
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/*
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* These functions are called by the client process (libzfs).
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*/
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int dctlc_connect(const char *dir, boolean_t check_subdirs);
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void dctlc_disconnect(int fd);
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int dctlc_ioctl(int fd, int32_t request, void *arg);
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#endif
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