ldap/common/getuserattr.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 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <secdb.h>
#include <user_attr.h>
#include "ldap_common.h"


/* user_attr attributes filters */
#define _USER_NAME      "uid"
#define _USER_QUALIFIER     "SolarisUserQualifier"
#define _USER_RES1      "SolarisAttrReserved1"
#define _USER_RES2      "SolarisAttrReserved2"
#define _USER_ATTRS     "SolarisAttrKeyValue"
#define _USER_GETUSERNAME   \
    "(&(objectClass=SolarisUserAttr)(uid=%s))"
#define _USER_GETUSERNAME_SSD   "(&(%%s)(uid=%s))"


static const char *user_attrs[] = {
    _USER_NAME,
    _USER_QUALIFIER,
    _USER_RES1,
    _USER_RES2,
    _USER_ATTRS,
    (char *)NULL
};
/*
 * _nss_ldap_user2str is the data marshaling method for the user_attr
 * system call getuserattr, getusernam and getuseruid.
 * This method is called after a successful search has been performed.
 * This method will parse the search results into the file format.
 * e.g.
 *
 * adm::::profiles=Log Management
 *
 */
static int
_nss_ldap_user2str(ldap_backend_ptr be, nss_XbyY_args_t *argp)
{
    int         nss_result;
    int         buflen = 0;
    unsigned long       len = 0L;
    char            *buffer = NULL;
    ns_ldap_result_t    *result = be->result;
    char            **name, **res1, **res2, **qu, **attr;
    char            *res1_str, *res2_str, *qu_str, *attr_str;

    if (result == NULL)
        return (NSS_STR_PARSE_PARSE);

    buflen = argp->buf.buflen;
    nss_result = NSS_STR_PARSE_SUCCESS;
    (void) memset(argp->buf.buffer, 0, buflen);

    name = __ns_ldap_getAttr(result->entry, _USER_NAME);
    if (name == NULL || name[0] == NULL ||
            (strlen(name[0]) < 1)) {
        nss_result = NSS_STR_PARSE_PARSE;
        goto result_user2str;
    }

    qu = __ns_ldap_getAttr(result->entry, _USER_QUALIFIER);
    if (qu == NULL || qu[0] == NULL || (strlen(qu[0]) < 1))
        qu_str = _NO_VALUE;
    else
        qu_str = qu[0];

    res1 = __ns_ldap_getAttr(result->entry, _USER_RES2);
    if (res1 == NULL || res1[0] == NULL || (strlen(res1[0]) < 1))
        res1_str = _NO_VALUE;
    else
        res1_str = res1[0];

    res2 = __ns_ldap_getAttr(result->entry, _USER_RES2);
    if (res2 == NULL || res2[0] == NULL || (strlen(res2[0]) < 1))
        res2_str = _NO_VALUE;
    else
        res2_str = res2[0];

    attr = __ns_ldap_getAttr(result->entry, _USER_ATTRS);
    if (attr == NULL || attr[0] == NULL || (strlen(attr[0]) < 1))
        attr_str = _NO_VALUE;
    else
        attr_str = attr[0];
    /* 5 = 4 ':' + 1 '\0' */
    len = strlen(name[0]) + strlen(res1_str) + strlen(res2_str) +
        strlen(qu_str) + strlen(attr_str) + 5;
    if (len > buflen) {
        nss_result = NSS_STR_PARSE_ERANGE;
        goto result_user2str;
    }

    if (argp->buf.result != NULL) {
        if ((be->buffer = calloc(1, len)) == NULL) {
            nss_result = NSS_STR_PARSE_PARSE;
            goto result_user2str;
        }
        buffer = be->buffer;
    } else
        buffer = argp->buf.buffer;
    (void) snprintf(buffer, len, "%s:%s:%s:%s:%s",
            name[0], qu_str, res1_str, res2_str, attr_str);
    /* The front end marshaller doesn't need the trailing null */
    if (argp->buf.result != NULL)
        be->buflen = strlen(be->buffer);

result_user2str:
    (void) __ns_ldap_freeResult(&be->result);
    return ((int)nss_result);
}


static nss_status_t
getbyname(ldap_backend_ptr be, void *a)
{
    nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
    char        searchfilter[SEARCHFILTERLEN];
    char        userdata[SEARCHFILTERLEN];
    char        name[SEARCHFILTERLEN];
    int     ret;

    if (_ldap_filter_name(name, argp->key.name, sizeof (name)) != 0)
        return ((nss_status_t)NSS_NOTFOUND);

    ret = snprintf(searchfilter, sizeof (searchfilter),
        _USER_GETUSERNAME, name);
    if (ret >= sizeof (userdata) || ret < 0)
        return ((nss_status_t)NSS_NOTFOUND);

    ret = snprintf(userdata, sizeof (userdata),
        _USER_GETUSERNAME_SSD, name);
    if (ret >= sizeof (userdata) || ret < 0)
        return ((nss_status_t)NSS_NOTFOUND);

    return ((nss_status_t)_nss_ldap_lookup(be, argp,
        _USERATTR, searchfilter, NULL, _merge_SSD_filter, userdata));
}


static ldap_backend_op_t userattr_ops[] = {
    _nss_ldap_destr,
    _nss_ldap_endent,
    _nss_ldap_setent,
    _nss_ldap_getent,
    getbyname
};


/*ARGSUSED0*/
nss_backend_t *
_nss_ldap_user_attr_constr(const char *dummy1,
    const char *dummy2,
    const char *dummy3,
    const char *dummy4,
    const char *dummy5)
{
    return ((nss_backend_t *)_nss_ldap_constr(userattr_ops,
        sizeof (userattr_ops)/sizeof (userattr_ops[0]), _USERATTR,
        user_attrs, _nss_ldap_user2str));
}