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/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2014 Nexenta Systems, Inc. All rights reserved.
*/
/*
* BSD 3 Clause License
*
* Copyright (c) 2007, The Storage Networking Industry Association.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* - Neither the name of The Storage Networking Industry Association (SNIA)
* nor the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* NDMP configuration management
*/
#include <stdio.h>
#include <stdlib.h>
#include <synch.h>
#include <syslog.h>
#include <strings.h>
#include <ndmpd_prop.h>
#include <libndmp.h>
#include "ndmpd.h"
typedef struct ndmpd_cfg_param {
char *sc_name;
char *sc_defval;
char *sc_value;
uint32_t sc_flags;
} ndmpd_cfg_param_t;
static int ndmpd_config_update(ndmpd_cfg_param_t *cfg, char *value);
/*
* IMPORTANT: any changes to the order of this table's entries
* need to be reflected in the enum ndmpd_cfg_id_t.
*/
ndmpd_cfg_param_t ndmpd_cfg_table[] =
{
{"dar-support", "", 0, NDMP_CF_NOTINIT},
{"mover-nic", "", 0, NDMP_CF_NOTINIT},
{"dump-pathnode", "", 0, NDMP_CF_NOTINIT},
{"tar-pathnode", "", 0, NDMP_CF_NOTINIT},
{"fh-inode", "", 0, NDMP_CF_NOTINIT},
{"ignore-ctime", "", 0, NDMP_CF_NOTINIT},
{"include-lmtime", "", 0, NDMP_CF_NOTINIT},
{"token-maxseq", "", 0, NDMP_CF_NOTINIT},
{"version", "", 0, NDMP_CF_NOTINIT},
{"restore-fullpath", "", 0, NDMP_CF_NOTINIT},
{"debug-path", "", 0, NDMP_CF_NOTINIT},
{"plugin-path", "", 0, NDMP_CF_NOTINIT},
{"socket-css", "", 0, NDMP_CF_NOTINIT},
{"socket-crs", "", 0, NDMP_CF_NOTINIT},
{"mover-recordsize", "", 0, NDMP_CF_NOTINIT},
{"restore-wildcard-enable", "", 0, NDMP_CF_NOTINIT},
{"cram-md5-username", "", 0, NDMP_CF_NOTINIT},
{"cram-md5-password", "", 0, NDMP_CF_NOTINIT},
{"cleartext-username", "", 0, NDMP_CF_NOTINIT},
{"cleartext-password", "", 0, NDMP_CF_NOTINIT},
{"tcp-port", "", 0, NDMP_CF_NOTINIT},
{"backup-quarantine", "", 0, NDMP_CF_NOTINIT},
{"restore-quarantine", "", 0, NDMP_CF_NOTINIT},
{"overwrite-quarantine", "", 0, NDMP_CF_NOTINIT},
{"zfs-force-override", "", 0, NDMP_CF_NOTINIT},
{"drive-type", "", 0, NDMP_CF_NOTINIT},
{"debug-mode", "", 0, NDMP_CF_NOTINIT},
};
/*
* Loads all the NDMP configuration parameters and sets up the
* config table.
*/
int
ndmpd_load_prop(void)
{
ndmpd_cfg_id_t id;
ndmpd_cfg_param_t *cfg;
char *value;
for (id = 0; id < NDMP_MAXALL; id++) {
cfg = &ndmpd_cfg_table[id];
if ((ndmp_get_prop(cfg->sc_name, &value)) == -1) {
syslog(LOG_DEBUG, "%s %s",
cfg->sc_name, ndmp_strerror(ndmp_errno));
continue;
}
/*
* enval == 0 could mean two things, either the
* config param is not defined, or it has been
* removed. If the variable has already been defined
* and now enval is 0, it should be removed, otherwise
* we don't need to do anything in this case.
*/
if ((cfg->sc_flags & NDMP_CF_DEFINED) || value) {
if (ndmpd_config_update(cfg, value)) {
free(value);
return (-1);
}
}
free(value);
}
return (0);
}
/*
* ndmpd_config_update
*
* Updates the specified config param with the given value.
* This function is called both on (re)load and set.
*/
static int
ndmpd_config_update(ndmpd_cfg_param_t *cfg, char *value)
{
char *curval;
int rc = 0;
int len;
if (value) {
len = strlen(value);
if (cfg->sc_value) {
curval = realloc(cfg->sc_value, (len + 1));
} else {
curval = ndmp_malloc(len + 1);
}
if (curval) {
cfg->sc_value = curval;
(void) strcpy(cfg->sc_value, value);
cfg->sc_flags |= NDMP_CF_DEFINED;
} else {
syslog(LOG_ERR, "Out of memory.");
rc = -1;
}
} else if (cfg->sc_value) {
free(cfg->sc_value);
cfg->sc_value = 0;
cfg->sc_flags &= ~NDMP_CF_DEFINED;
}
return (rc);
}
/*
* Returns value of the specified config param.
* The return value is a string pointer to the locally
* allocated memory if the config param is defined
* otherwise it would be NULL.
*/
char *
ndmpd_get_prop(ndmpd_cfg_id_t id)
{
char *env_val;
if (id < NDMP_MAXALL) {
env_val = ndmpd_cfg_table[id].sc_value;
return (env_val);
}
return (0);
}
/*
* Similar to ndmpd_get_prop except it will return dflt value
* if env is not set.
*/
char *
ndmpd_get_prop_default(ndmpd_cfg_id_t id, char *dflt)
{
char *env;
env = ndmpd_get_prop(id);
if (env && *env != 0) {
return (env);
} else {
return (dflt);
}
}
/*
* Returns the value of a yes/no config param.
* Returns 1 is config is set to "yes", otherwise 0.
*/
int
ndmpd_get_prop_yorn(ndmpd_cfg_id_t id)
{
char *val;
val = ndmpd_get_prop(id);
if (val) {
if (strcasecmp(val, "yes") == 0)
return (1);
}
return (0);
}
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