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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* ns_fnutils.c
*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <synch.h>
#include <rpc/rpc.h>
#include <xfn/xfn.h>
#include "automount.h"
#include "ns_fnutils.h"
/*
* FNS file system reference and address types. Each array is indexed
* using the corresponding enumeration (reftype_t or addrtype_t).
*/
const char *reftypes[] = {
"onc_fn_fs",
};
const char *addrtypes[] = {
"onc_fn_fs_mount",
"onc_fn_fs_host",
"onc_fn_fs_user",
};
FN_string_t *empty_string = NULL;
FN_composite_name_t *empty_cname = NULL;
FN_composite_name_t *slash_cname = NULL;
int
init_fn(void)
{
static mutex_t init_lock = DEFAULTMUTEX;
if (slash_cname != NULL) {
return (0);
}
mutex_lock(&init_lock);
if (empty_string == NULL) {
if ((empty_string = fn_string_create()) == NULL) {
log_mem_failure();
goto unlock;
}
}
if (empty_cname == NULL) {
if ((empty_cname = new_cname("")) == NULL) {
goto unlock;
}
}
if (slash_cname == NULL) {
if ((slash_cname = new_cname("/")) == NULL) {
goto unlock;
}
}
unlock:
mutex_unlock(&init_lock);
return ((slash_cname != NULL) ? 0 : -1);
}
FN_composite_name_t *
new_cname(const char *str)
{
FN_string_t *string;
FN_composite_name_t *cname;
string = fn_string_from_str((unsigned char *)str);
if (string == NULL) {
if (verbose) {
syslog(LOG_ERR, "Could not create FNS string object");
}
return (NULL);
}
cname = fn_composite_name_from_string(string);
fn_string_destroy(string);
if ((cname == NULL) && verbose) {
syslog(LOG_ERR, "Could not create FNS composite name object");
}
return (cname);
}
reftype_t
reftype(const FN_ref_t *ref)
{
reftype_t rtype;
for (rtype = 0; rtype < NUM_REFTYPES; rtype++) {
if (ident_str_equal(fn_ref_type(ref), reftypes[rtype])) {
break;
}
}
return (rtype);
}
addrtype_t
addrtype(const FN_ref_addr_t *addr)
{
addrtype_t atype;
const FN_identifier_t *ident = fn_ref_addr_type(addr);
for (atype = 0; atype < NUM_ADDRTYPES; atype++) {
if (ident_str_equal(ident, addrtypes[atype])) {
break;
}
}
return (atype);
}
bool_t
ident_equal(const FN_identifier_t *id1, const FN_identifier_t *id2)
{
return ((id1->format == id2->format) &&
(id1->length == id2->length) &&
(memcmp(id1->contents, id2->contents, id1->length) == 0));
}
bool_t
ident_str_equal(const FN_identifier_t *id, const char *str)
{
return ((id->format == FN_ID_STRING) &&
(id->length == strlen(str)) &&
(strncmp(str, id->contents, id->length) == 0));
}
void
logstat(const FN_status_t *status, const char *msg1, const char *msg2)
{
FN_string_t *desc_string;
const char *desc = NULL;
if (verbose) {
desc_string = fn_status_description(status, DETAIL, NULL);
if (desc_string != NULL) {
desc = (const char *)fn_string_str(desc_string, NULL);
}
if (desc == NULL) {
desc = "(no status description)";
}
syslog(LOG_ERR, "FNS %s %s: %s (%u)",
msg1, msg2, desc, fn_status_code(status));
fn_string_destroy(desc_string);
}
}
bool_t
transient(const FN_status_t *status)
{
unsigned int statcode;
statcode = fn_status_code(status);
if (statcode == FN_E_LINK_ERROR) {
statcode = fn_status_link_code(status);
}
switch (statcode) {
case FN_E_COMMUNICATION_FAILURE:
case FN_E_CTX_UNAVAILABLE:
case FN_E_INSUFFICIENT_RESOURCES:
case FN_E_INVALID_ENUM_HANDLE:
case FN_E_PARTIAL_RESULT:
case FN_E_UNSPECIFIED_ERROR:
return (TRUE);
default:
return (FALSE);
}
}
void
log_mem_failure(void)
{
if (verbose) {
syslog(LOG_ERR, "Memory allocation failed");
}
}
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