/*
* 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 <ctype.h>
#include <netdb.h>
#include "ns_internal.h"
#include "ldap_common.h"
/* protocols attributes filters */
#define _P_NAME "cn"
#define _P_PROTO "ipprotocolnumber"
#define _F_GETPROTOBYNAME "(&(objectClass=ipProtocol)(cn=%s))"
#define _F_GETPROTOBYNAME_SSD "(&(%%s)(cn=%s))"
#define _F_GETPROTOBYNUMBER \
"(&(objectClass=ipProtocol)(ipProtocolNumber=%d))"
#define _F_GETPROTOBYNUMBER_SSD \
"(&(%%s)(ipProtocolNumber=%d))"
static const char *protocols_attrs[] = {
_P_NAME,
_P_PROTO,
(char *)NULL
};
typedef struct protocol_alias {
char *protocol;
char *alias;
} protocol_alias_t;
static const protocol_alias_t ip_aliases[10] = {
{ "ip", "IP" },
{ "ipip", "IP-IP" },
{ "ipcomp", "IPComp" },
{ "ipv6", "IPv6" },
{ "ipv6-route", "IPv6-Route" },
{ "ipv6-frag", "IPv6-Frag" },
{ "ipv6-icmp", "IPv6-ICMP" },
{ "ipv6-nonxt", "IPv6-NoNxt" },
{ "ipv6-opts", "IPv6-Opts" },
{ NULL, NULL }
};
/*
* When the data is imported by ldapaddent, it does not save the aliase in the
* "cn" that is same as the canonical name but only different in case.
* e.g.
* icmp 1 ICMP
*
* is saved as
*
* dn: cn=icmp, ...
* ...
* cn: icmp
* ...
*
* So it needs to replicate the canonical name as an alias of upper case.
* But some protocol does have different aliases.
*
* e.g.
* dn: cn=ospf, ...
* ...
* cn: ospf
* cn: OSPFIGP
* ...
*
* For many ip* protocols, the aliases are mixed cased. Maybe it's case
* insensitive. But this fucntion tries to restore the aliases to the original
* form as much as possible. If the alias can't be found in the aliases table,
* it assumes the alias is all upper case.
*
*/
static char *
get_alias(char *protocol) {
int i;
char *cp;
if (strncmp(protocol, "ip", 2) == 0) {
for (i = 0; ip_aliases[i].protocol != NULL; i++) {
if (strcmp(protocol, ip_aliases[i].protocol) == 0)
return (ip_aliases[i].alias);
}
/*
* No aliase in the table. Return an all upper case aliase
*/
for (cp = protocol; *cp; cp++)
*cp = toupper(*cp);
return (protocol);
} else {
/* Return an all upper case aliase */
for (cp = protocol; *cp; cp++)
*cp = toupper(*cp);
return (protocol);
}
}
/*
* _nss_ldap_protocols2str is the data marshaling method for the protocols
* getXbyY * (e.g., getbyname(), getbynumber(), getent()) backend processes.
* This method is called after a successful ldap search has been performed.
* This method will parse the ldap search values into a file format.
* e.g.
* idrp 45 IDRP
* or
* ospf 89 OSPFIGP
*/
static int
_nss_ldap_protocols2str(ldap_backend_ptr be, nss_XbyY_args_t *argp)
{
uint_t i;
int nss_result;
int buflen = 0, len;
char *cname = NULL;
char *buffer = NULL, **number, *alias;
ns_ldap_result_t *result = be->result;
ns_ldap_attr_t *names;
if (result == NULL)
return (NSS_STR_PARSE_PARSE);
buflen = argp->buf.buflen;
if (argp->buf.result != NULL) {
if ((be->buffer = calloc(1, buflen)) == NULL) {
nss_result = NSS_STR_PARSE_PARSE;
goto result_pls2str;
}
buffer = be->buffer;
} else
buffer = argp->buf.buffer;
nss_result = NSS_STR_PARSE_SUCCESS;
(void) memset(argp->buf.buffer, 0, buflen);
names = __ns_ldap_getAttrStruct(result->entry, _P_NAME);
if (names == NULL || names->attrvalue == NULL) {
nss_result = NSS_STR_PARSE_PARSE;
goto result_pls2str;
}
/* Get the canonical name */
cname = __s_api_get_canonical_name(result->entry, names, 1);
if (cname == NULL || (len = strlen(cname)) < 1) {
nss_result = NSS_STR_PARSE_PARSE;
goto result_pls2str;
}
number = __ns_ldap_getAttr(result->entry, _P_PROTO);
if (number == NULL || number[0] == NULL ||
(len = strlen(number[0])) < 1) {
nss_result = NSS_STR_PARSE_PARSE;
goto result_pls2str;
}
len = snprintf(buffer, buflen, "%s %s", cname, number[0]);
TEST_AND_ADJUST(len, buffer, buflen, result_pls2str);
/* Append aliases */
if (names->value_count == 1) {
/* create an aliase from protocol name */
alias = get_alias(cname);
len = snprintf(buffer, buflen, " %s", alias);
TEST_AND_ADJUST(len, buffer, buflen, result_pls2str);
} else {
for (i = 0; i < names->value_count; i++) {
if (names->attrvalue[i] == NULL) {
nss_result = NSS_STR_PARSE_PARSE;
goto result_pls2str;
}
/* Skip the canonical name */
if (strcasecmp(names->attrvalue[i], cname) != 0) {
len = snprintf(buffer, buflen, " %s",
names->attrvalue[i]);
TEST_AND_ADJUST(len, buffer, buflen,
result_pls2str);
}
}
}
/* The front end marshaller doesn't need to copy trailing nulls */
if (argp->buf.result != NULL)
be->buflen = strlen(be->buffer);
result_pls2str:
(void) __ns_ldap_freeResult(&be->result);
return ((int)nss_result);
}
/*
* getbyname gets struct protoent values by protocol name. This
* function constructs an ldap search filter using the protocol
* name invocation parameter and the getprotobyname search filter
* defined. Once the filter is constructed, we search for a matching
* entry and marshal the data results into *proto = (struct *
* protoent *)argp->buf.result. The function _nss_ldap_protocols2ent
* 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_GETPROTOBYNAME, name);
if (ret >= sizeof (searchfilter) || ret < 0)
return ((nss_status_t)NSS_NOTFOUND);
ret = snprintf(userdata, sizeof (userdata),
_F_GETPROTOBYNAME_SSD, name);
if (ret >= sizeof (userdata) || ret < 0)
return ((nss_status_t)NSS_NOTFOUND);
return ((nss_status_t)_nss_ldap_lookup(be, argp,
_PROTOCOLS, searchfilter, NULL,
_merge_SSD_filter, userdata));
}
/*
* getbynumber gets struct protoent values by protocol number. This
* function constructs an ldap search filter using the protocol
* name invocation parameter and the getprotobynumber search filter
* defined. Once the filter is constructed, we search for a matching
* entry and marshal the data results into *proto = (struct *
* protoent *)argp->buf.result. The function _nss_ldap_protocols2ent
* 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_GETPROTOBYNUMBER, argp->key.number);
if (ret >= sizeof (searchfilter) || ret < 0)
return ((nss_status_t)NSS_NOTFOUND);
ret = snprintf(userdata, sizeof (userdata),
_F_GETPROTOBYNUMBER_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,
_PROTOCOLS, searchfilter, NULL,
_merge_SSD_filter, userdata));
}
static ldap_backend_op_t proto_ops[] = {
_nss_ldap_destr,
_nss_ldap_endent,
_nss_ldap_setent,
_nss_ldap_getent,
getbyname,
getbynumber
};
/*
* _nss_ldap_protocols_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_protocols_constr(const char *dummy1, const char *dummy2,
const char *dummy3)
{
return ((nss_backend_t *)_nss_ldap_constr(proto_ops,
sizeof (proto_ops)/sizeof (proto_ops[0]), _PROTOCOLS,
protocols_attrs, _nss_ldap_protocols2str));
}