libnwam/common/libnwam_values.c

/*
 * 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
 */

/*
 * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.
 */

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <libdlwlan.h>
#include <libnvpair.h>

#include "libnwam_impl.h"
#include <libnwam_priv.h>
#include <libnwam.h>

/*
 * Internal implementation of libnwam in-memory objects and values.  Objects
 * are nvlists.
 */

void
nwam_value_free(nwam_value_t value)
{
    uint_t i;

    if (value == NULL)
        return;

    switch (value->nwv_value_type) {
    case NWAM_VALUE_TYPE_BOOLEAN:
        free(value->nwv_values.nwv_boolean);
        break;
    case NWAM_VALUE_TYPE_INT64:
        free(value->nwv_values.nwv_int64);
        break;
    case NWAM_VALUE_TYPE_UINT64:
        free(value->nwv_values.nwv_uint64);
        break;
    case NWAM_VALUE_TYPE_STRING:
        for (i = 0; i < value->nwv_value_numvalues; i++)
            free(value->nwv_values.nwv_string[i]);
        free(value->nwv_values.nwv_string);
        break;
    }
    free(value);
}

nwam_error_t
nwam_value_create(nwam_value_type_t value_type, void *values, uint_t numvalues,
    nwam_value_t *valuep)
{
    nwam_value_t newvalue;
    boolean_t *values_boolean;
    int64_t *values_int64;
    uint64_t *values_uint64;
    char **values_string;
    int i, j;
    nwam_error_t err = NWAM_SUCCESS;

    *valuep = NULL;

    if ((newvalue = calloc(1, sizeof (struct nwam_value))) == NULL)
        return (NWAM_NO_MEMORY);

    newvalue->nwv_value_type = value_type;
    newvalue->nwv_value_numvalues = numvalues;

    switch (value_type) {
    case NWAM_VALUE_TYPE_BOOLEAN:
        values_boolean = values;
        if ((newvalue->nwv_values.nwv_boolean =
            calloc(numvalues, sizeof (boolean_t))) == NULL) {
            free(newvalue);
            return (NWAM_NO_MEMORY);
        }
        for (i = 0; i < numvalues; i++)
            newvalue->nwv_values.nwv_boolean[i] = values_boolean[i];
        break;
    case NWAM_VALUE_TYPE_INT64:
        values_int64 = values;
        if ((newvalue->nwv_values.nwv_int64 =
            calloc(numvalues, sizeof (int64_t))) == NULL) {
            free(newvalue);
            return (NWAM_NO_MEMORY);
        }
        for (i = 0; i < numvalues; i++)
            newvalue->nwv_values.nwv_int64[i] = values_int64[i];
        break;
    case NWAM_VALUE_TYPE_UINT64:
        values_uint64 = values;
        if ((newvalue->nwv_values.nwv_uint64 =
            calloc(numvalues, sizeof (uint64_t))) == NULL) {
            free(newvalue);
            return (NWAM_NO_MEMORY);
        }
        for (i = 0; i < numvalues; i++)
            newvalue->nwv_values.nwv_uint64[i] = values_uint64[i];
        break;
    case NWAM_VALUE_TYPE_STRING:
        values_string = values;
        if ((newvalue->nwv_values.nwv_string =
            calloc(numvalues, sizeof (char *))) == NULL) {
            free(newvalue);
            return (NWAM_NO_MEMORY);
        }
        for (i = 0; i < numvalues; i++) {
            if (strnlen(values_string[i], NWAM_MAX_VALUE_LEN) ==
                NWAM_MAX_VALUE_LEN) {
                err = NWAM_ENTITY_INVALID_VALUE;
            } else if ((newvalue->nwv_values.nwv_string[i] =
                strdup(values_string[i])) == NULL) {
                err = NWAM_NO_MEMORY;
            }
            if (err != NWAM_SUCCESS) {
                for (j = 0; j < i; j++)
                    free(
                        newvalue->nwv_values.nwv_string[i]);
                free(newvalue->nwv_values.nwv_string);
                free(newvalue);
                return (err);
            }
        }
        break;
    default:
        break;
    }

    *valuep = newvalue;
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_value_copy(nwam_value_t old, nwam_value_t *newp)
{
    void *values;

    assert(old != NULL && newp != NULL);

    switch (old->nwv_value_type) {
    case NWAM_VALUE_TYPE_BOOLEAN:
        values = old->nwv_values.nwv_boolean;
        break;
    case NWAM_VALUE_TYPE_INT64:
        values = old->nwv_values.nwv_int64;
        break;
    case NWAM_VALUE_TYPE_UINT64:
        values = old->nwv_values.nwv_uint64;
        break;
    case NWAM_VALUE_TYPE_STRING:
        values = old->nwv_values.nwv_string;
        break;
    default:
        return (NWAM_INVALID_ARG);
    }
    return (nwam_value_create(old->nwv_value_type, values,
        old->nwv_value_numvalues, newp));
}
nwam_error_t
nwam_value_create_boolean_array(boolean_t *values, uint_t numvalues,
    nwam_value_t *valuep)
{
    return (nwam_value_create(NWAM_VALUE_TYPE_BOOLEAN, values, numvalues,
        valuep));
}

nwam_error_t
nwam_value_create_boolean(boolean_t value, nwam_value_t *valuep)
{
    return (nwam_value_create_boolean_array(&value, 1, valuep));
}

nwam_error_t
nwam_value_create_int64_array(int64_t *values, uint_t numvalues,
    nwam_value_t *valuep)
{
    return (nwam_value_create(NWAM_VALUE_TYPE_INT64, values, numvalues,
        valuep));
}

nwam_error_t
nwam_value_create_int64(int64_t value, nwam_value_t *valuep)
{
    return (nwam_value_create_int64_array(&value, 1, valuep));
}

nwam_error_t
nwam_value_create_uint64_array(uint64_t *values, uint_t numvalues,
    nwam_value_t *valuep)
{
    return (nwam_value_create(NWAM_VALUE_TYPE_UINT64, values, numvalues,
        valuep));
}

nwam_error_t
nwam_value_create_uint64(uint64_t value, nwam_value_t *valuep)
{
    return (nwam_value_create_uint64_array(&value, 1, valuep));
}

nwam_error_t
nwam_value_create_string_array(char **values, uint_t numvalues,
    nwam_value_t *valuep)
{
    return (nwam_value_create(NWAM_VALUE_TYPE_STRING, values, numvalues,
        valuep));
}

nwam_error_t
nwam_value_create_string(char *value, nwam_value_t *valuep)
{
    return (nwam_value_create_string_array(&value, 1, valuep));
}

nwam_error_t
nwam_value_get_boolean_array(nwam_value_t value, boolean_t **valuesp,
    uint_t *numvaluesp)
{
    assert(value != NULL && numvaluesp != NULL && valuesp != NULL);

    *numvaluesp = value->nwv_value_numvalues;
    *valuesp = value->nwv_values.nwv_boolean;
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_value_get_boolean(nwam_value_t value, boolean_t *valuep)
{
    uint_t numvalues;
    boolean_t *myvaluesp;
    nwam_error_t err;

    err = nwam_value_get_boolean_array(value, &myvaluesp, &numvalues);
    if (err != NWAM_SUCCESS)
        return (err);
    if (numvalues != 1)
        return (NWAM_ENTITY_MULTIPLE_VALUES);

    *valuep = myvaluesp[0];
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_value_get_int64_array(nwam_value_t value, int64_t **valuesp,
    uint_t *numvaluesp)
{
    assert(value != NULL && numvaluesp != NULL && valuesp != NULL);

    *numvaluesp = value->nwv_value_numvalues;
    *valuesp = value->nwv_values.nwv_int64;
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_value_get_int64(nwam_value_t value, int64_t *valuep)
{
    uint_t numvalues;
    int64_t *myvaluesp;
    nwam_error_t err;

    err = nwam_value_get_int64_array(value, &myvaluesp, &numvalues);
    if (err != NWAM_SUCCESS)
        return (err);
    if (numvalues != 1)
        return (NWAM_ENTITY_MULTIPLE_VALUES);

    *valuep = myvaluesp[0];
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_value_get_uint64_array(nwam_value_t value, uint64_t **valuesp,
    uint_t *numvaluesp)
{
    assert(value != NULL && numvaluesp != NULL && valuesp != NULL);

    *numvaluesp = value->nwv_value_numvalues;
    *valuesp = value->nwv_values.nwv_uint64;
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_value_get_uint64(nwam_value_t value, uint64_t *valuep)
{
    uint_t numvalues;
    uint64_t *myvaluesp;
    nwam_error_t err;

    err = nwam_value_get_uint64_array(value, &myvaluesp, &numvalues);
    if (err != NWAM_SUCCESS)
        return (err);
    if (numvalues != 1)
        return (NWAM_ENTITY_MULTIPLE_VALUES);

    *valuep = myvaluesp[0];
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_value_get_string_array(nwam_value_t value, char ***valuesp,
    uint_t *numvaluesp)
{
    assert(value != NULL && numvaluesp != NULL && valuesp != NULL);

    *numvaluesp = value->nwv_value_numvalues;
    *valuesp = value->nwv_values.nwv_string;
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_value_get_string(nwam_value_t value, char **valuep)
{
    uint_t numvalues;
    char **myvaluesp;
    nwam_error_t err;

    err = nwam_value_get_string_array(value, &myvaluesp, &numvalues);
    if (err != NWAM_SUCCESS)
        return (err);
    if (numvalues != 1)
        return (NWAM_ENTITY_MULTIPLE_VALUES);

    *valuep = myvaluesp[0];
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_value_get_type(nwam_value_t value, nwam_value_type_t *typep)
{
    *typep = value->nwv_value_type;
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_value_get_numvalues(nwam_value_t value, uint_t *numvaluesp)
{
    *numvaluesp = value->nwv_value_numvalues;
    return (NWAM_SUCCESS);
}

/*
 * Generic object data functions. We hide nvlist implementation
 * from NCP, ENM and location implementations.
 */
nwam_error_t
nwam_alloc_object_list(void *list)
{
    int nverr;

    assert(list != NULL);

    if ((nverr = nvlist_alloc((nvlist_t **)list, NV_UNIQUE_NAME, 0)) != 0)
        return (nwam_errno_to_nwam_error(nverr));

    return (NWAM_SUCCESS);
}

void
nwam_free_object_list(void *list)
{
    if (list != NULL)
        nvlist_free(list);
}

nwam_error_t
nwam_dup_object_list(void *oldlist, void *newlist)
{
    int nverr;

    assert(oldlist != NULL && newlist != NULL);

    if ((nverr = nvlist_dup(oldlist, newlist, 0)) != 0)
        return (nwam_errno_to_nwam_error(nverr));

    return (NWAM_SUCCESS);
}
/*
 * Functions to walk, set and get properties in nvlist, translating
 * between nwam_value_t and nvlist/nvpair representations.
 */
nwam_error_t
nwam_next_object_prop(void *list, char *lastname, char **namep,
    nwam_value_t *valuep)
{
    nvpair_t *last = NULL, *next;
    int nverr;

    if (lastname != NULL) {
        if ((nverr = nvlist_lookup_nvpair(list, lastname, &last)) != 0)
            return (nwam_errno_to_nwam_error(nverr));
    }
    if ((next = nvlist_next_nvpair(list, last)) == NULL)
        return (NWAM_LIST_END);

    *namep = nvpair_name(next);

    return (nwam_get_prop_value(list, (const char *)*namep, valuep));
}

nwam_error_t
nwam_get_prop_value(void *list, const char *name, nwam_value_t *valuep)
{
    nvpair_t *prop;
    nwam_error_t err;
    int nverr, i;
    boolean_t *valbool;
    int64_t *valint64;
    uint64_t *valuint64;
    char **valstr, **strs;
    nvlist_t **valnvl;
    uint_t numvalues;

    assert(list != NULL && valuep != NULL);

    *valuep = NULL;

    if ((nverr = nvlist_lookup_nvpair(list, name, &prop)) != 0) {
        /* convert EINVAL to NOT_FOUND */
        if (nverr == EINVAL)
            return (NWAM_ENTITY_NOT_FOUND);
        return (nwam_errno_to_nwam_error(nverr));
    }

    switch (nvpair_type(prop)) {
    case DATA_TYPE_BOOLEAN_ARRAY:
        if ((nverr = nvpair_value_boolean_array(prop,
            &valbool, &numvalues)) != 0)
            return (nwam_errno_to_nwam_error(nverr));
        if ((err = nwam_value_create_boolean_array(valbool, numvalues,
            valuep)) != NWAM_SUCCESS)
            return (err);
        break;
    case DATA_TYPE_INT64_ARRAY:
        if ((nverr = nvpair_value_int64_array(prop,
            &valint64, &numvalues)) != 0)
            return (nwam_errno_to_nwam_error(nverr));
        if ((err = nwam_value_create_int64_array(valint64, numvalues,
            valuep)) != NWAM_SUCCESS)
            return (err);
        break;
    case DATA_TYPE_UINT64_ARRAY:
        if ((nverr = nvpair_value_uint64_array(prop,
            &valuint64, &numvalues)) != 0)
            return (nwam_errno_to_nwam_error(nverr));
        if ((err = nwam_value_create_uint64_array(valuint64, numvalues,
            valuep)) != NWAM_SUCCESS)
            return (err);
        break;
    case DATA_TYPE_STRING_ARRAY:
        if ((nverr = nvpair_value_string_array(prop,
            &valstr, &numvalues)) != 0)
            return (nwam_errno_to_nwam_error(nverr));
        if ((err = nwam_value_create_string_array(valstr, numvalues,
            valuep)) != NWAM_SUCCESS)
            return (err);
        break;
    case DATA_TYPE_NVLIST_ARRAY:
        /*
         * This is an array of id lists.  For all nwam objects, the
         * id info is contained in a single nvpair named 'name' and
         * of type string.  Extract each applicable name string, and
         * return an array of these strings.
         */
        if ((nverr = nvpair_value_nvlist_array(prop, &valnvl,
            &numvalues)) != 0)
            return (nwam_errno_to_nwam_error(nverr));
        if ((strs = calloc(numvalues, sizeof (char *))) == NULL)
            return (NWAM_NO_MEMORY);
        for (i = 0; i < numvalues; i++) {
            if ((nverr = nvlist_lookup_string(valnvl[i], "name",
                &strs[i])) != 0) {
                free(strs);
                return (nwam_errno_to_nwam_error(nverr));
            }
        }
        if ((err = nwam_value_create_string_array(strs, numvalues,
            valuep)) != NWAM_SUCCESS) {
            free(strs);
            return (err);
        }
        free(strs);
        break;
    default:
        /* Should not happen */
        return (NWAM_ERROR_INTERNAL);
    }
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_delete_prop(void *list, const char *name)
{
    int nverr;

    if ((nverr = nvlist_remove_all(list, name)) != 0)
        return (nwam_errno_to_nwam_error(nverr));
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_set_prop_value(void *list, const char *propname, nwam_value_t value)
{
    int nverr;
    nwam_error_t err;
    nwam_value_type_t type;
    uint_t numvalues;
    boolean_t *valbool;
    int64_t *valint64;
    uint64_t *valuint64;
    char **valstr;

    assert(list != NULL && value != NULL);

    if ((err = nwam_value_get_type(value, &type)) != NWAM_SUCCESS)
        return (err);

    switch (type) {
    case NWAM_VALUE_TYPE_BOOLEAN:
        if ((err = nwam_value_get_boolean_array(value, &valbool,
            &numvalues)) != NWAM_SUCCESS)
            return (err);
        if ((nverr = nvlist_add_boolean_array(list, propname,
            valbool, numvalues)) != 0)
            return (nwam_errno_to_nwam_error(nverr));
        break;
    case NWAM_VALUE_TYPE_INT64:
        if ((err = nwam_value_get_int64_array(value, &valint64,
            &numvalues)) != NWAM_SUCCESS)
            return (err);
        if ((nverr = nvlist_add_int64_array(list, propname,
            valint64, numvalues)) != 0)
            return (nwam_errno_to_nwam_error(nverr));
        break;
    case NWAM_VALUE_TYPE_UINT64:
        if ((err = nwam_value_get_uint64_array(value, &valuint64,
            &numvalues)) != NWAM_SUCCESS)
            return (err);
        if ((nverr = nvlist_add_uint64_array(list, propname,
            valuint64, numvalues)) != 0)
            return (nwam_errno_to_nwam_error(nverr));
        break;
    case NWAM_VALUE_TYPE_STRING:
        if ((err = nwam_value_get_string_array(value, &valstr,
            &numvalues)) != NWAM_SUCCESS)
            return (err);
        if ((nverr = nvlist_add_string_array(list, propname,
            valstr, numvalues)) != 0)
            return (nwam_errno_to_nwam_error(nverr));
        break;
    default:
        return (NWAM_INVALID_ARG);
    }

    return (NWAM_SUCCESS);
}

/* Map uint64 values to their string counterparts */

struct nwam_value_entry {
    const char  *value_string;
    uint64_t        value;
};

struct nwam_value_entry prop_activation_mode_value_entries[] =
{
    { NWAM_ACTIVATION_MODE_MANUAL_STRING, NWAM_ACTIVATION_MODE_MANUAL },
    { NWAM_ACTIVATION_MODE_SYSTEM_STRING, NWAM_ACTIVATION_MODE_SYSTEM },
    { NWAM_ACTIVATION_MODE_CONDITIONAL_ANY_STRING,
    NWAM_ACTIVATION_MODE_CONDITIONAL_ANY },
    { NWAM_ACTIVATION_MODE_CONDITIONAL_ALL_STRING,
    NWAM_ACTIVATION_MODE_CONDITIONAL_ALL },
    { NWAM_ACTIVATION_MODE_PRIORITIZED_STRING,
    NWAM_ACTIVATION_MODE_PRIORITIZED },
    { NULL, 0 }
};

struct nwam_value_entry prop_mgmt_type_entries[] =
{
    { NWAM_MGMT_TYPE_REACTIVE_STRING, NWAM_MGMT_TYPE_REACTIVE },
    { NWAM_MGMT_TYPE_FIXED_STRING, NWAM_MGMT_TYPE_FIXED },
    { NULL, 0 }
};

struct nwam_value_entry ncu_prop_type_entries[] =
{
    { NWAM_NCU_TYPE_LINK_STRING, NWAM_NCU_TYPE_LINK },
    { NWAM_NCU_TYPE_INTERFACE_STRING, NWAM_NCU_TYPE_INTERFACE },
    { NULL, 0 }
};

struct nwam_value_entry ncu_prop_ip_version_entries[] =
{
    { NWAM_IP_VERSION_IPV4_STRING, IPV4_VERSION },
    { NWAM_IP_VERSION_IPV6_STRING, IPV6_VERSION },
    { NULL, 0 }
};

struct nwam_value_entry ncu_prop_ipv4_addrsrc_entries[] =
{
    { NWAM_ADDRSRC_DHCP_STRING, NWAM_ADDRSRC_DHCP },
    { NWAM_ADDRSRC_STATIC_STRING, NWAM_ADDRSRC_STATIC },
    { NULL, 0 }
};

struct nwam_value_entry ncu_prop_ipv6_addrsrc_entries[] =
{
    { NWAM_ADDRSRC_DHCP_STRING, NWAM_ADDRSRC_DHCP },
    { NWAM_ADDRSRC_STATIC_STRING, NWAM_ADDRSRC_STATIC },
    { NWAM_ADDRSRC_AUTOCONF_STRING, NWAM_ADDRSRC_AUTOCONF },
    { NULL, 0 }
};

struct nwam_value_entry ncu_prop_priority_mode_entries[] =
{
    { NWAM_PRIORITY_MODE_EXCLUSIVE_STRING, NWAM_PRIORITY_MODE_EXCLUSIVE },
    { NWAM_PRIORITY_MODE_SHARED_STRING, NWAM_PRIORITY_MODE_SHARED },
    { NWAM_PRIORITY_MODE_ALL_STRING, NWAM_PRIORITY_MODE_ALL },
    { NULL, 0 }
};

struct nwam_value_entry loc_prop_nameservices_entries[] =
{
    { NWAM_NAMESERVICES_DNS_STRING, NWAM_NAMESERVICES_DNS },
    { NWAM_NAMESERVICES_FILES_STRING, NWAM_NAMESERVICES_FILES },
    { NWAM_NAMESERVICES_NIS_STRING, NWAM_NAMESERVICES_NIS },
    { NWAM_NAMESERVICES_LDAP_STRING, NWAM_NAMESERVICES_LDAP },
    { NULL, 0 }
};

struct nwam_value_entry loc_prop_nameservice_configsrc_entries[] =
{
    { NWAM_CONFIGSRC_MANUAL_STRING, NWAM_CONFIGSRC_MANUAL },
    { NWAM_CONFIGSRC_DHCP_STRING, NWAM_CONFIGSRC_DHCP },
    { NULL, 0 }
};

struct nwam_value_entry known_wlan_prop_security_mode_entries[] =
{
    { "none", DLADM_WLAN_SECMODE_NONE },
    { "wep", DLADM_WLAN_SECMODE_WEP },
    { "wpa", DLADM_WLAN_SECMODE_WPA },
    { NULL, 0 }
};

struct nwam_prop_value_entry {
    const char      *prop_name;
    struct nwam_value_entry *value_entries;
} prop_value_entry_table[] =
{
    { NWAM_NCP_PROP_MGMT_TYPE, prop_mgmt_type_entries },
    { NWAM_NCU_PROP_ACTIVATION_MODE, prop_activation_mode_value_entries },
    { NWAM_NCU_PROP_TYPE, ncu_prop_type_entries },
    { NWAM_NCU_PROP_IP_VERSION, ncu_prop_ip_version_entries },
    { NWAM_NCU_PROP_IPV4_ADDRSRC, ncu_prop_ipv4_addrsrc_entries },
    { NWAM_NCU_PROP_IPV6_ADDRSRC, ncu_prop_ipv6_addrsrc_entries },
    { NWAM_NCU_PROP_PRIORITY_MODE, ncu_prop_priority_mode_entries },
    { NWAM_ENM_PROP_ACTIVATION_MODE, prop_activation_mode_value_entries },
    { NWAM_LOC_PROP_ACTIVATION_MODE, prop_activation_mode_value_entries },
    { NWAM_LOC_PROP_NAMESERVICES, loc_prop_nameservices_entries },
    { NWAM_LOC_PROP_DNS_NAMESERVICE_CONFIGSRC,
        loc_prop_nameservice_configsrc_entries },
    { NWAM_LOC_PROP_NIS_NAMESERVICE_CONFIGSRC,
        loc_prop_nameservice_configsrc_entries },
    { NWAM_LOC_PROP_LDAP_NAMESERVICE_CONFIGSRC,
        loc_prop_nameservice_configsrc_entries },
    { NWAM_KNOWN_WLAN_PROP_SECURITY_MODE,
        known_wlan_prop_security_mode_entries },
    { NULL, NULL }
};

/*
 * Convert uint64 values for property propname into a string representing
 * that value. Used by enum values.
 */
nwam_error_t
nwam_uint64_get_value_string(const char *propname, uint64_t val,
    const char **valstrp)
{
    int i, j;
    int max = 0; /* largest enum value seen so far */
    struct nwam_value_entry *value_entries;

    assert(propname != NULL && valstrp != NULL);

    for (i = 0; prop_value_entry_table[i].prop_name != NULL; i++) {
        if (strcmp(prop_value_entry_table[i].prop_name, propname) != 0)
            continue;

        value_entries = prop_value_entry_table[i].value_entries;

        for (j = 0; value_entries[j].value_string != NULL; j++) {
            if (value_entries[j].value == val) {
                *valstrp = value_entries[j].value_string;
                return (NWAM_SUCCESS);
            }
            max = value_entries[j].value > max ?
                value_entries[j].value : max;
        }
        /*
         * If trying to get the string for an enum value that doesn't
         * exist, return NWAM_LIST_END.  Otherwise, the input enum
         * value doesn't exist for the given property.
         */
        if (val > max)
            return (NWAM_LIST_END);
        else
            return (NWAM_ENTITY_INVALID_VALUE);
    }
    return (NWAM_INVALID_ARG);
}

/*
 * Convert string to appropriate uint64 value.
 */
nwam_error_t
nwam_value_string_get_uint64(const char *propname, const char *valstr,
    uint64_t *valp)
{
    int i, j;
    struct nwam_value_entry *value_entries;

    assert(propname != NULL && valstr != NULL && valp != NULL);

    for (i = 0; prop_value_entry_table[i].prop_name != NULL; i++) {
        if (strcmp(prop_value_entry_table[i].prop_name, propname) != 0)
            continue;

        value_entries = prop_value_entry_table[i].value_entries;

        for (j = 0; value_entries[j].value_string != NULL; j++) {
            if (strcasecmp(value_entries[j].value_string, valstr)
                == 0) {
                *valp = value_entries[j].value;
                return (NWAM_SUCCESS);
            }
        }
        return (NWAM_ENTITY_INVALID_VALUE);
    }
    return (NWAM_INVALID_ARG);
}

/* Conditional activation functions */

nwam_error_t
nwam_condition_to_condition_string(nwam_condition_object_type_t object_type,
    nwam_condition_t condition, const char *object_name, char **stringp)
{
    char *object_type_string, *condition_string;
    char *string;

    assert(stringp != NULL);

    *stringp = NULL;

    switch (object_type) {
    case NWAM_CONDITION_OBJECT_TYPE_NCP:
        object_type_string = NWAM_CONDITION_OBJECT_TYPE_NCP_STRING;
        break;
    case NWAM_CONDITION_OBJECT_TYPE_NCU:
        object_type_string = NWAM_CONDITION_OBJECT_TYPE_NCU_STRING;
        break;
    case NWAM_CONDITION_OBJECT_TYPE_ENM:
        object_type_string = NWAM_CONDITION_OBJECT_TYPE_ENM_STRING;
        break;
    case NWAM_CONDITION_OBJECT_TYPE_LOC:
        object_type_string = NWAM_CONDITION_OBJECT_TYPE_LOC_STRING;
        break;
    case NWAM_CONDITION_OBJECT_TYPE_IP_ADDRESS:
        object_type_string =
            NWAM_CONDITION_OBJECT_TYPE_IP_ADDRESS_STRING;
        break;
    case NWAM_CONDITION_OBJECT_TYPE_ADV_DOMAIN:
        object_type_string =
            NWAM_CONDITION_OBJECT_TYPE_ADV_DOMAIN_STRING;
        break;
    case NWAM_CONDITION_OBJECT_TYPE_SYS_DOMAIN:
        object_type_string =
            NWAM_CONDITION_OBJECT_TYPE_SYS_DOMAIN_STRING;
        break;
    case NWAM_CONDITION_OBJECT_TYPE_ESSID:
        object_type_string = NWAM_CONDITION_OBJECT_TYPE_ESSID_STRING;
        break;
    case NWAM_CONDITION_OBJECT_TYPE_BSSID:
        object_type_string = NWAM_CONDITION_OBJECT_TYPE_BSSID_STRING;
        break;
    default:
        return (NWAM_INVALID_ARG);

    }
    switch (condition) {
    case NWAM_CONDITION_IS:
        condition_string = NWAM_CONDITION_IS_STRING;
        break;
    case NWAM_CONDITION_IS_NOT:
        condition_string = NWAM_CONDITION_IS_NOT_STRING;
        break;
    case NWAM_CONDITION_CONTAINS:
        if (object_type != NWAM_CONDITION_OBJECT_TYPE_SYS_DOMAIN &&
            object_type != NWAM_CONDITION_OBJECT_TYPE_ADV_DOMAIN &&
            object_type != NWAM_CONDITION_OBJECT_TYPE_ESSID)
            return (NWAM_INVALID_ARG);
        condition_string = NWAM_CONDITION_CONTAINS_STRING;
        break;
    case NWAM_CONDITION_DOES_NOT_CONTAIN:
        if (object_type != NWAM_CONDITION_OBJECT_TYPE_SYS_DOMAIN &&
            object_type != NWAM_CONDITION_OBJECT_TYPE_ADV_DOMAIN &&
            object_type != NWAM_CONDITION_OBJECT_TYPE_ESSID)
            return (NWAM_INVALID_ARG);

        condition_string = NWAM_CONDITION_DOES_NOT_CONTAIN_STRING;
        break;
    case NWAM_CONDITION_IS_IN_RANGE:
        if (object_type != NWAM_CONDITION_OBJECT_TYPE_IP_ADDRESS)
            return (NWAM_INVALID_ARG);
        condition_string = NWAM_CONDITION_IS_IN_RANGE_STRING;
        break;
    case NWAM_CONDITION_IS_NOT_IN_RANGE:
        if (object_type != NWAM_CONDITION_OBJECT_TYPE_IP_ADDRESS)
            return (NWAM_INVALID_ARG);
        condition_string = NWAM_CONDITION_IS_NOT_IN_RANGE_STRING;
        break;
    default:
        return (NWAM_INVALID_ARG);
        /* NOTREACHED */
        break;
    }
    if ((string = malloc(NWAM_MAX_VALUE_LEN)) == NULL)
        return (NWAM_NO_MEMORY);
    switch (object_type) {
    case NWAM_CONDITION_OBJECT_TYPE_NCP:
    case NWAM_CONDITION_OBJECT_TYPE_NCU:
    case NWAM_CONDITION_OBJECT_TYPE_ENM:
    case NWAM_CONDITION_OBJECT_TYPE_LOC:
        (void) snprintf(string, NWAM_MAX_VALUE_LEN,
            "%s %s %s active", object_type_string,
            object_name, condition_string);
        *stringp = string;
        break;

    case NWAM_CONDITION_OBJECT_TYPE_IP_ADDRESS:
    case NWAM_CONDITION_OBJECT_TYPE_ADV_DOMAIN:
    case NWAM_CONDITION_OBJECT_TYPE_SYS_DOMAIN:
    case NWAM_CONDITION_OBJECT_TYPE_ESSID:
    case NWAM_CONDITION_OBJECT_TYPE_BSSID:
        (void) snprintf(string, NWAM_MAX_VALUE_LEN,
            "%s %s %s", object_type_string,
            condition_string, object_name);
        *stringp = string;
        break;

    default:
        free(string);
        return (NWAM_INVALID_ARG);

    }
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_condition_string_to_condition(const char *string,
    nwam_condition_object_type_t *object_typep,
    nwam_condition_t *conditionp, char **object_namep)
{
    char *copy, *lasts;
    char *object_type_string, *object_name;
    char *condition_string, *active_string;

    assert(string != NULL && object_typep != NULL && conditionp != NULL &&
        object_namep != NULL);

    if ((copy = strdup(string)) == NULL)
        return (NWAM_NO_MEMORY);

    if ((object_type_string = strtok_r(copy, " \t", &lasts)) == NULL) {
        free(copy);
        return (NWAM_INVALID_ARG);
    }

    if (strcmp(object_type_string, NWAM_CONDITION_OBJECT_TYPE_NCP_STRING)
        == 0)
        *object_typep = NWAM_CONDITION_OBJECT_TYPE_NCP;
    else if (strcmp(object_type_string,
        NWAM_CONDITION_OBJECT_TYPE_NCU_STRING) == 0)
        *object_typep = NWAM_CONDITION_OBJECT_TYPE_NCU;
    else if (strcmp(object_type_string,
        NWAM_CONDITION_OBJECT_TYPE_ENM_STRING) == 0)
        *object_typep = NWAM_CONDITION_OBJECT_TYPE_ENM;
    else if (strcmp(object_type_string,
        NWAM_CONDITION_OBJECT_TYPE_LOC_STRING) == 0)
        *object_typep = NWAM_CONDITION_OBJECT_TYPE_LOC;
    else if (strcmp(object_type_string,
        NWAM_CONDITION_OBJECT_TYPE_IP_ADDRESS_STRING) == 0)
        *object_typep = NWAM_CONDITION_OBJECT_TYPE_IP_ADDRESS;
    else if (strcmp(object_type_string,
        NWAM_CONDITION_OBJECT_TYPE_ADV_DOMAIN_STRING) == 0)
        *object_typep = NWAM_CONDITION_OBJECT_TYPE_ADV_DOMAIN;
    else if (strcmp(object_type_string,
        NWAM_CONDITION_OBJECT_TYPE_SYS_DOMAIN_STRING) == 0)
        *object_typep = NWAM_CONDITION_OBJECT_TYPE_SYS_DOMAIN;
    else if (strcmp(object_type_string,
        NWAM_CONDITION_OBJECT_TYPE_ESSID_STRING) == 0)
        *object_typep = NWAM_CONDITION_OBJECT_TYPE_ESSID;
    else if (strcmp(object_type_string,
        NWAM_CONDITION_OBJECT_TYPE_BSSID_STRING) == 0)
        *object_typep = NWAM_CONDITION_OBJECT_TYPE_BSSID;
    else {
        free(copy);
        return (NWAM_INVALID_ARG);
    }

    if (*object_typep == NWAM_CONDITION_OBJECT_TYPE_NCP ||
        *object_typep == NWAM_CONDITION_OBJECT_TYPE_NCU ||
        *object_typep == NWAM_CONDITION_OBJECT_TYPE_ENM ||
        *object_typep == NWAM_CONDITION_OBJECT_TYPE_LOC) {
        if ((object_name = strtok_r(NULL, " \t", &lasts)) == NULL) {
            free(copy);
            return (NWAM_INVALID_ARG);
        }
        if ((*object_namep = strdup(object_name)) == NULL) {
            free(copy);
            return (NWAM_NO_MEMORY);
        }

    }

    if ((condition_string = strtok_r(NULL, " \t", &lasts)) == NULL) {
        free(copy);
        if (*object_namep != NULL)
            free(*object_namep);
        return (NWAM_INVALID_ARG);
    }
    if (strcmp(condition_string, NWAM_CONDITION_IS_STRING) == 0)
        *conditionp = NWAM_CONDITION_IS;
    else if (strcmp(condition_string, NWAM_CONDITION_IS_NOT_STRING) == 0)
        *conditionp = NWAM_CONDITION_IS_NOT;
    else if (strcmp(condition_string, NWAM_CONDITION_CONTAINS_STRING) == 0)
        *conditionp = NWAM_CONDITION_CONTAINS;
    else if (strcmp(condition_string,
        NWAM_CONDITION_DOES_NOT_CONTAIN_STRING) == 0)
        *conditionp = NWAM_CONDITION_DOES_NOT_CONTAIN;
    else if (strcmp(condition_string,
        NWAM_CONDITION_IS_IN_RANGE_STRING) == 0)
        *conditionp = NWAM_CONDITION_IS_IN_RANGE;
    else if (strcmp(condition_string,
        NWAM_CONDITION_IS_NOT_IN_RANGE_STRING) == 0)
        *conditionp = NWAM_CONDITION_IS_NOT_IN_RANGE;
    else {
        free(copy);
        if (*object_namep != NULL)
            free(*object_namep);
        return (NWAM_INVALID_ARG);
    }

    if (*object_typep == NWAM_CONDITION_OBJECT_TYPE_NCP ||
        *object_typep == NWAM_CONDITION_OBJECT_TYPE_NCU ||
        *object_typep == NWAM_CONDITION_OBJECT_TYPE_ENM ||
        *object_typep == NWAM_CONDITION_OBJECT_TYPE_LOC) {
        if ((*conditionp != NWAM_CONDITION_IS &&
            *conditionp != NWAM_CONDITION_IS_NOT) ||
            (active_string = strtok_r(NULL, " \t", &lasts)) == NULL ||
            strcmp(active_string, NWAM_CONDITION_ACTIVE_STRING) != 0) {
            free(copy);
            free(*object_namep);
            return (NWAM_INVALID_ARG);
        }
    } else {
        switch (*conditionp) {
        case NWAM_CONDITION_CONTAINS:
        case NWAM_CONDITION_DOES_NOT_CONTAIN:
            if (*object_typep !=
                NWAM_CONDITION_OBJECT_TYPE_ADV_DOMAIN &&
                *object_typep !=
                NWAM_CONDITION_OBJECT_TYPE_SYS_DOMAIN &&
                *object_typep != NWAM_CONDITION_OBJECT_TYPE_ESSID) {
                free(copy);
                free(*object_namep);
                return (NWAM_INVALID_ARG);
            }
            break;
        case NWAM_CONDITION_IS_IN_RANGE:
        case NWAM_CONDITION_IS_NOT_IN_RANGE:
            if (*object_typep !=
                NWAM_CONDITION_OBJECT_TYPE_IP_ADDRESS) {
                free(copy);
                free(*object_namep);
                return (NWAM_INVALID_ARG);
            }
            break;
        }

        if ((object_name = strtok_r(NULL, " \t", &lasts)) == NULL) {
            free(copy);
            free(*object_namep);
            return (NWAM_INVALID_ARG);
        }
        if ((*object_namep = strdup(object_name)) == NULL) {
            free(copy);
            free(*object_namep);
            return (NWAM_NO_MEMORY);
        }
    }

    free(copy);
    return (NWAM_SUCCESS);
}

nwam_error_t
nwam_condition_rate(nwam_condition_object_type_t object_type,
    nwam_condition_t condition, uint64_t *ratep)
{
    assert(ratep != NULL);

    *ratep = 0;

    switch (object_type) {
    case NWAM_CONDITION_OBJECT_TYPE_NCP:
    case NWAM_CONDITION_OBJECT_TYPE_NCU:
    case NWAM_CONDITION_OBJECT_TYPE_ENM:
    case NWAM_CONDITION_OBJECT_TYPE_LOC:
        (*ratep)++;
        /* FALLTHRU */
    case NWAM_CONDITION_OBJECT_TYPE_SYS_DOMAIN:
        (*ratep)++;
        /* FALLTHRU */
    case NWAM_CONDITION_OBJECT_TYPE_ADV_DOMAIN:
        (*ratep)++;
        /* FALLTHRU */
    case NWAM_CONDITION_OBJECT_TYPE_IP_ADDRESS:
        (*ratep)++;
        /* FALLTHRU */
    case NWAM_CONDITION_OBJECT_TYPE_BSSID:
        (*ratep)++;
        /* FALLTHRU */
    case NWAM_CONDITION_OBJECT_TYPE_ESSID:
        (*ratep)++;
        break;
    default:
        return (NWAM_INVALID_ARG);
    }

    switch (condition) {
    case NWAM_CONDITION_IS:
        (*ratep)++;
        /* FALLTHRU */
    case NWAM_CONDITION_CONTAINS:
    case NWAM_CONDITION_IS_IN_RANGE:
        (*ratep)++;
        /* FALLTHRU */
    case NWAM_CONDITION_DOES_NOT_CONTAIN:
    case NWAM_CONDITION_IS_NOT_IN_RANGE:
        (*ratep)++;
        /* FALLTHRU */
    case NWAM_CONDITION_IS_NOT:
        (*ratep)++;
        break;
    default:
        return (NWAM_INVALID_ARG);
    }
    return (NWAM_SUCCESS);
}