367 lines
8.3 KiB
C
367 lines
8.3 KiB
C
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/*
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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 (the "License").
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* You may not use this file except in compliance 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 (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2011 Gunnar Beutner
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* Copyright (c) 2018, 2020 by Delphix. All rights reserved.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <strings.h>
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#include <libintl.h>
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#include <sys/file.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <libzfs.h>
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#include <libshare.h>
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#include "libzfs_impl.h"
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#include "libshare_impl.h"
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#include "nfs.h"
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#include "smb.h"
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static sa_share_impl_t alloc_share(const char *zfsname, const char *path);
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static void free_share(sa_share_impl_t share);
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static int fstypes_count;
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static sa_fstype_t *fstypes;
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sa_fstype_t *
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register_fstype(const char *name, const sa_share_ops_t *ops)
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{
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sa_fstype_t *fstype;
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fstype = calloc(1, sizeof (sa_fstype_t));
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if (fstype == NULL)
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return (NULL);
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fstype->name = name;
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fstype->ops = ops;
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fstype->fsinfo_index = fstypes_count;
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fstypes_count++;
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fstype->next = fstypes;
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fstypes = fstype;
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return (fstype);
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}
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__attribute__((constructor)) static void
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libshare_init(void)
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{
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libshare_nfs_init();
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libshare_smb_init();
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}
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int
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sa_enable_share(const char *zfsname, const char *mountpoint,
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const char *shareopts, char *protocol)
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{
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int rc, ret = SA_OK;
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boolean_t found_protocol = B_FALSE;
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sa_fstype_t *fstype;
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sa_share_impl_t impl_share = alloc_share(zfsname, mountpoint);
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if (impl_share == NULL)
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return (SA_NO_MEMORY);
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fstype = fstypes;
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while (fstype != NULL) {
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if (strcmp(fstype->name, protocol) == 0) {
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rc = fstype->ops->update_shareopts(impl_share,
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shareopts);
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if (rc != SA_OK)
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break;
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rc = fstype->ops->enable_share(impl_share);
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if (rc != SA_OK)
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ret = rc;
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found_protocol = B_TRUE;
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}
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fstype = fstype->next;
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}
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free_share(impl_share);
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return (found_protocol ? ret : SA_INVALID_PROTOCOL);
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}
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int
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sa_disable_share(const char *mountpoint, char *protocol)
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{
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int rc, ret = SA_OK;
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boolean_t found_protocol = B_FALSE;
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sa_fstype_t *fstype;
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sa_share_impl_t impl_share = alloc_share(NULL, mountpoint);
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if (impl_share == NULL)
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return (SA_NO_MEMORY);
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fstype = fstypes;
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while (fstype != NULL) {
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if (strcmp(fstype->name, protocol) == 0) {
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rc = fstype->ops->disable_share(impl_share);
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if (rc != SA_OK)
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ret = rc;
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found_protocol = B_TRUE;
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}
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fstype = fstype->next;
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}
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free_share(impl_share);
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return (found_protocol ? ret : SA_INVALID_PROTOCOL);
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}
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boolean_t
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sa_is_shared(const char *mountpoint, char *protocol)
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{
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sa_fstype_t *fstype;
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boolean_t ret = B_FALSE;
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/* guid value is not used */
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sa_share_impl_t impl_share = alloc_share(NULL, mountpoint);
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if (impl_share == NULL)
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return (B_FALSE);
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fstype = fstypes;
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while (fstype != NULL) {
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if (strcmp(fstype->name, protocol) == 0) {
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ret = fstype->ops->is_shared(impl_share);
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}
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fstype = fstype->next;
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}
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free_share(impl_share);
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return (ret);
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}
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void
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sa_commit_shares(const char *protocol)
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{
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sa_fstype_t *fstype = fstypes;
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while (fstype != NULL) {
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if (strcmp(fstype->name, protocol) == 0)
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fstype->ops->commit_shares();
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fstype = fstype->next;
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}
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}
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/*
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* sa_errorstr(err)
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*
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* convert an error value to an error string
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*/
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char *
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sa_errorstr(int err)
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{
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static char errstr[32];
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char *ret = NULL;
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switch (err) {
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case SA_OK:
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ret = dgettext(TEXT_DOMAIN, "ok");
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break;
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case SA_NO_SUCH_PATH:
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ret = dgettext(TEXT_DOMAIN, "path doesn't exist");
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break;
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case SA_NO_MEMORY:
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ret = dgettext(TEXT_DOMAIN, "no memory");
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break;
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case SA_DUPLICATE_NAME:
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ret = dgettext(TEXT_DOMAIN, "name in use");
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break;
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case SA_BAD_PATH:
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ret = dgettext(TEXT_DOMAIN, "bad path");
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break;
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case SA_NO_SUCH_GROUP:
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ret = dgettext(TEXT_DOMAIN, "no such group");
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break;
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case SA_CONFIG_ERR:
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ret = dgettext(TEXT_DOMAIN, "configuration error");
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break;
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case SA_SYSTEM_ERR:
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ret = dgettext(TEXT_DOMAIN, "system error");
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break;
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case SA_SYNTAX_ERR:
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ret = dgettext(TEXT_DOMAIN, "syntax error");
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break;
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case SA_NO_PERMISSION:
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ret = dgettext(TEXT_DOMAIN, "no permission");
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break;
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case SA_BUSY:
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ret = dgettext(TEXT_DOMAIN, "busy");
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break;
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case SA_NO_SUCH_PROP:
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ret = dgettext(TEXT_DOMAIN, "no such property");
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break;
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case SA_INVALID_NAME:
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ret = dgettext(TEXT_DOMAIN, "invalid name");
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break;
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case SA_INVALID_PROTOCOL:
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ret = dgettext(TEXT_DOMAIN, "invalid protocol");
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break;
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case SA_NOT_ALLOWED:
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ret = dgettext(TEXT_DOMAIN, "operation not allowed");
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break;
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case SA_BAD_VALUE:
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ret = dgettext(TEXT_DOMAIN, "bad property value");
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break;
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case SA_INVALID_SECURITY:
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ret = dgettext(TEXT_DOMAIN, "invalid security type");
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break;
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case SA_NO_SUCH_SECURITY:
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ret = dgettext(TEXT_DOMAIN, "security type not found");
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break;
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case SA_VALUE_CONFLICT:
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ret = dgettext(TEXT_DOMAIN, "property value conflict");
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break;
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case SA_NOT_IMPLEMENTED:
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ret = dgettext(TEXT_DOMAIN, "not implemented");
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break;
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case SA_INVALID_PATH:
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ret = dgettext(TEXT_DOMAIN, "invalid path");
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break;
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case SA_NOT_SUPPORTED:
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ret = dgettext(TEXT_DOMAIN, "operation not supported");
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break;
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case SA_PROP_SHARE_ONLY:
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ret = dgettext(TEXT_DOMAIN, "property not valid for group");
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break;
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case SA_NOT_SHARED:
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ret = dgettext(TEXT_DOMAIN, "not shared");
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break;
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case SA_NO_SUCH_RESOURCE:
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ret = dgettext(TEXT_DOMAIN, "no such resource");
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break;
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case SA_RESOURCE_REQUIRED:
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ret = dgettext(TEXT_DOMAIN, "resource name required");
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break;
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case SA_MULTIPLE_ERROR:
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ret = dgettext(TEXT_DOMAIN, "errors from multiple protocols");
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break;
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case SA_PATH_IS_SUBDIR:
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ret = dgettext(TEXT_DOMAIN, "path is a subpath of share");
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break;
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case SA_PATH_IS_PARENTDIR:
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ret = dgettext(TEXT_DOMAIN, "path is parent of a share");
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break;
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case SA_NO_SECTION:
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ret = dgettext(TEXT_DOMAIN, "protocol requires a section");
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break;
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case SA_NO_PROPERTIES:
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ret = dgettext(TEXT_DOMAIN, "properties not found");
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break;
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case SA_NO_SUCH_SECTION:
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ret = dgettext(TEXT_DOMAIN, "section not found");
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break;
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case SA_PASSWORD_ENC:
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ret = dgettext(TEXT_DOMAIN, "passwords must be encrypted");
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break;
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case SA_SHARE_EXISTS:
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ret = dgettext(TEXT_DOMAIN, "path or file is already shared");
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break;
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default:
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(void) snprintf(errstr, sizeof (errstr),
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dgettext(TEXT_DOMAIN, "unknown %d"), err);
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ret = errstr;
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}
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return (ret);
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}
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int
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sa_validate_shareopts(char *options, char *proto)
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{
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sa_fstype_t *fstype;
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fstype = fstypes;
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while (fstype != NULL) {
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if (strcmp(fstype->name, proto) != 0) {
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fstype = fstype->next;
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continue;
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}
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return (fstype->ops->validate_shareopts(options));
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}
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return (SA_INVALID_PROTOCOL);
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}
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static sa_share_impl_t
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alloc_share(const char *zfsname, const char *mountpoint)
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{
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sa_share_impl_t impl_share;
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impl_share = calloc(1, sizeof (struct sa_share_impl));
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if (impl_share == NULL)
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return (NULL);
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if (mountpoint != NULL &&
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((impl_share->sa_mountpoint = strdup(mountpoint)) == NULL)) {
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free(impl_share);
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return (NULL);
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}
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if (zfsname != NULL &&
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((impl_share->sa_zfsname = strdup(zfsname)) == NULL)) {
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free(impl_share->sa_mountpoint);
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free(impl_share);
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return (NULL);
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}
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impl_share->sa_fsinfo = calloc(fstypes_count,
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sizeof (sa_share_fsinfo_t));
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if (impl_share->sa_fsinfo == NULL) {
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free(impl_share->sa_mountpoint);
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free(impl_share->sa_zfsname);
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free(impl_share);
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return (NULL);
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}
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return (impl_share);
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}
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static void
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free_share(sa_share_impl_t impl_share)
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{
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sa_fstype_t *fstype;
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fstype = fstypes;
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while (fstype != NULL) {
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fstype->ops->clear_shareopts(impl_share);
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fstype = fstype->next;
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}
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free(impl_share->sa_mountpoint);
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free(impl_share->sa_zfsname);
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free(impl_share->sa_fsinfo);
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free(impl_share);
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}
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