getrpcent.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <rpc/rpcent.h>
#include "ns_internal.h"
#include "ldap_common.h"
/* rpc attributes filters */
#define _R_NAME "cn"
#define _R_NUMBER "oncrpcnumber"
#define _F_GETRPCBYNAME "(&(objectClass=oncRpc)(cn=%s))"
#define _F_GETRPCBYNAME_SSD "(&(%%s)(cn=%s))"
#define _F_GETRPCBYNUMBER "(&(objectClass=oncRpc)(oncRpcNumber=%d))"
#define _F_GETRPCBYNUMBER_SSD "(&(%%s)(oncRpcNumber=%d))"
static const char *rpc_attrs[] = {
_R_NAME,
_R_NUMBER,
(char *)NULL
};
/*
* _nss_ldap_rpc2ent is the data marshaling method for the rpc getXbyY
* (e.g., getbyname(), getbynumber(), getrpcent()) backend processes.
* This method is called after a successful ldap search has been performed.
* This method will parse the ldap search values into *rpc = (struct
* rpcent *)argp->buf.result which the frontend process expects. Three
* error conditions are expected and returned to nsswitch.
*/
static int
_nss_ldap_rpc2ent(ldap_backend_ptr be, nss_XbyY_args_t *argp)
{
int i, j;
int nss_result;
int buflen = (int)0;
int firstime = (int)1;
unsigned long len = 0L;
char **mp, *cname = NULL;
char *buffer = (char *)NULL;
char *ceiling = (char *)NULL;
struct rpcent *rpc = (struct rpcent *)NULL;
ns_ldap_result_t *result = be->result;
ns_ldap_attr_t *attrptr;
buffer = (char *)argp->buf.buffer;
buflen = (size_t)argp->buf.buflen;
if (!argp->buf.result) {
nss_result = (int)NSS_STR_PARSE_ERANGE;
goto result_rpc2ent;
}
rpc = (struct rpcent *)argp->buf.result;
ceiling = buffer + buflen;
nss_result = (int)NSS_STR_PARSE_SUCCESS;
(void) memset(argp->buf.buffer, 0, buflen);
attrptr = getattr(result, 0);
if (attrptr == NULL) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_rpc2ent;
}
for (i = 0; i < result->entry->attr_count; i++) {
attrptr = getattr(result, i);
if (attrptr == NULL) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_rpc2ent;
}
if (strcasecmp(attrptr->attrname, _R_NAME) == 0) {
for (j = 0; j < attrptr->value_count; j++) {
/* traverse for all multivalued values */
if (firstime) {
/* rpc name */
cname = __s_api_get_canonical_name(
result->entry, attrptr, 1);
if (cname == NULL ||
(len = strlen(cname)) < 1) {
nss_result =
NSS_STR_PARSE_PARSE;
goto result_rpc2ent;
}
rpc->r_name = buffer;
buffer += len + 1;
if (buffer >= ceiling) {
nss_result =
(int)NSS_STR_PARSE_ERANGE;
goto result_rpc2ent;
}
(void) strcpy(rpc->r_name, cname);
/* alias list */
mp = rpc->r_aliases =
(char **)ROUND_UP(buffer,
sizeof (char **));
buffer = (char *)rpc->r_aliases +
sizeof (char *) *
(attrptr->value_count + 1);
buffer = (char *)ROUND_UP(buffer,
sizeof (char **));
if (buffer >= ceiling) {
nss_result =
(int)NSS_STR_PARSE_ERANGE;
goto result_rpc2ent;
}
firstime = (int)0;
}
/* alias list */
if ((attrptr->attrvalue[j] == NULL) ||
(len = strlen(attrptr->attrvalue[j])) < 1) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_rpc2ent;
}
/* skip canonical name */
if (strcmp(attrptr->attrvalue[j], cname) == 0)
continue;
*mp = buffer;
buffer += len + 1;
if (buffer >= ceiling) {
nss_result = (int)NSS_STR_PARSE_ERANGE;
goto result_rpc2ent;
}
(void) strcpy(*mp++, attrptr->attrvalue[j]);
continue;
}
}
if (strcasecmp(attrptr->attrname, _R_NUMBER) == 0) {
if ((attrptr->attrvalue[0] == NULL) ||
(len = strlen(attrptr->attrvalue[0])) < 1) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_rpc2ent;
}
errno = 0;
rpc->r_number = (int)strtol(attrptr->attrvalue[0],
(char **)NULL, 10);
if (errno != 0) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_rpc2ent;
}
continue;
}
}
if (mp != NULL)
*mp = NULL;
#ifdef DEBUG
(void) fprintf(stdout, "\n[getrpcent.c: _nss_ldap_rpc2ent]\n");
(void) fprintf(stdout, " r_name: [%s]\n", rpc->r_name);
if (mp != NULL) {
for (mp = rpc->r_aliases; *mp != NULL; mp++)
(void) fprintf(stdout, " r_aliases: [%s]\n", *mp);
}
(void) fprintf(stdout, " r_number: [%d]\n", rpc->r_number);
#endif /* DEBUG */
result_rpc2ent:
(void) __ns_ldap_freeResult(&be->result);
return ((int)nss_result);
}
/*
* getbyname gets struct rpcent values by rpc name. This function
* constructs an ldap search filter using the rpc name invocation
* parameter and the getrpcbyname search filter defined. Once the
* filter is constructed, we search for a matching entry and marshal
* the data results into *rpc = (struct rpcent *)argp->buf.result.
* The function _nss_ldap_rpc2ent performs the data marshaling.
*/
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), _F_GETRPCBYNAME,
name);
if (ret >= sizeof (searchfilter) || ret < 0)
return ((nss_status_t)NSS_NOTFOUND);
ret = snprintf(userdata, sizeof (userdata), _F_GETRPCBYNAME_SSD, name);
if (ret >= sizeof (userdata) || ret < 0)
return ((nss_status_t)NSS_NOTFOUND);
return ((nss_status_t)_nss_ldap_lookup(be, argp, _RPC, searchfilter,
NULL, _merge_SSD_filter, userdata));
}
/*
* getbynumber gets struct rpcent values by rpc number. This function
* constructs an ldap search filter using the rpc number invocation
* parameter and the getrpcbynumber search filter defined. Once the
* filter is constructed, we search for a matching entry and marshal
* the data results into *rpc = (struct rpcent *)argp->buf.result.
* The function _nss_ldap_rpc2ent performs the data marshaling.
*/
static nss_status_t
getbynumber(ldap_backend_ptr be, void *a)
{
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
char searchfilter[SEARCHFILTERLEN];
char userdata[SEARCHFILTERLEN];
int ret;
ret = snprintf(searchfilter, sizeof (searchfilter),
_F_GETRPCBYNUMBER, argp->key.number);
if (ret >= sizeof (searchfilter) || ret < 0)
return ((nss_status_t)NSS_NOTFOUND);
ret = snprintf(userdata, sizeof (userdata),
_F_GETRPCBYNUMBER_SSD, argp->key.number);
if (ret >= sizeof (userdata) || ret < 0)
return ((nss_status_t)NSS_NOTFOUND);
return ((nss_status_t)_nss_ldap_lookup(be, argp, _RPC, searchfilter,
NULL, _merge_SSD_filter, userdata));
}
static ldap_backend_op_t rpc_ops[] = {
_nss_ldap_destr,
_nss_ldap_endent,
_nss_ldap_setent,
_nss_ldap_getent,
getbyname,
getbynumber
};
/*
* _nss_ldap_rpc_constr is where life begins. This function calls the generic
* ldap constructor function to define and build the abstract data types
* required to support ldap operations.
*/
/*ARGSUSED0*/
nss_backend_t *
_nss_ldap_rpc_constr(const char *dummy1, const char *dummy2,
const char *dummy3)
{
return ((nss_backend_t *)_nss_ldap_constr(rpc_ops,
sizeof (rpc_ops)/sizeof (rpc_ops[0]),
_RPC, rpc_attrs, _nss_ldap_rpc2ent));
}