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/*
alias.c - alias entry lookup routines
Parts of this file were part of the nss_ldap library (as ldap-alias.c)
which has been forked into the nss-pam-ldapd library.
Copyright (C) 1997-2005 Luke Howard
Copyright (C) 2006 West Consulting
Copyright (C) 2006-2014 Arthur de Jong
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "common.h"
#include "log.h"
#include "myldap.h"
#include "cfg.h"
#include "attmap.h"
/* Vendor-specific attributes and object classes.
* (Mainly from Sun.)
* ( 1.3.6.1.4.1.42.2.27.1.2.5 NAME 'nisMailAlias' SUP top STRUCTURAL
* DESC 'NIS mail alias'
* MUST cn
* MAY rfc822MailMember )
*/
/* the search base for searches */
const char *alias_bases[NSS_LDAP_CONFIG_MAX_BASES] = { NULL };
/* the search scope for searches */
int alias_scope = LDAP_SCOPE_DEFAULT;
/* the basic search filter for searches */
const char *alias_filter = "(objectClass=nisMailAlias)";
/* the attributes to request with searches */
const char *attmap_alias_cn = "cn";
const char *attmap_alias_rfc822MailMember = "rfc822MailMember";
/* the attribute list to request with searches */
static const char *alias_attrs[3];
/* create a search filter for searching an alias by name,
return -1 on errors */
static int mkfilter_alias_byname(const char *name,
char *buffer, size_t buflen)
{
char safename[BUFLEN_SAFENAME];
/* escape attribute */
if (myldap_escape(name, safename, sizeof(safename)))
{
log_log(LOG_ERR, "mkfilter_alias_byname(): safename buffer too small");
return -1;
}
/* build filter */
return mysnprintf(buffer, buflen, "(&%s(%s=%s))",
alias_filter, attmap_alias_cn, safename);
}
void alias_init(void)
{
int i;
/* set up search bases */
if (alias_bases[0] == NULL)
for (i = 0; i < NSS_LDAP_CONFIG_MAX_BASES; i++)
alias_bases[i] = nslcd_cfg->bases[i];
/* set up scope */
if (alias_scope == LDAP_SCOPE_DEFAULT)
alias_scope = nslcd_cfg->scope;
/* set up attribute list */
alias_attrs[0] = attmap_alias_cn;
alias_attrs[1] = attmap_alias_rfc822MailMember;
alias_attrs[2] = NULL;
}
static int write_alias(TFILE *fp, MYLDAP_ENTRY *entry, const char *reqalias)
{
int32_t tmpint32, tmp2int32, tmp3int32;
const char **names, **members;
int i;
/* get the name of the alias */
names = myldap_get_values(entry, attmap_alias_cn);
if ((names == NULL) || (names[0] == NULL))
{
log_log(LOG_WARNING, "%s: %s: missing",
myldap_get_dn(entry), attmap_alias_cn);
return 0;
}
/* get the members of the alias */
members = myldap_get_values(entry, attmap_alias_rfc822MailMember);
/* for each name, write an entry */
for (i = 0; names[i] != NULL; i++)
{
if ((reqalias == NULL) || (strcasecmp(reqalias, names[i]) == 0))
{
WRITE_INT32(fp, NSLCD_RESULT_BEGIN);
WRITE_STRING(fp, names[i]);
WRITE_STRINGLIST(fp, members);
}
}
return 0;
}
NSLCD_HANDLE(
alias, byname, NSLCD_ACTION_ALIAS_BYNAME,
char name[BUFLEN_NAME];
char filter[BUFLEN_FILTER];
READ_STRING(fp, name);
log_setrequest("alias=\"%s\"", name);,
mkfilter_alias_byname(name, filter, sizeof(filter)),
write_alias(fp, entry, name)
)
NSLCD_HANDLE(
alias, all, NSLCD_ACTION_ALIAS_ALL,
const char *filter;
log_setrequest("alias(all)");,
(filter = alias_filter, 0),
write_alias(fp, entry, NULL)
)
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