/*
* 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"
/*
* Routines to handle getipnode* calls in nscd. Note that the
* getnodeby* APIs were renamed getipnodeby*. The interfaces
* related to them in the nscd will remain as getnode*.
*/
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <inet/ip6.h>
#include "cache.h"
static int ipaddr_compar(const void *, const void *);
static uint_t ipaddr_gethash(nss_XbyY_key_t *, int);
static void ipaddr_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
static int ipname_compar(const void *, const void *);
static uint_t ipname_gethash(nss_XbyY_key_t *, int);
static void ipname_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
#define nnam_db ctx->nsc_db[0]
#define addr_db ctx->nsc_db[1]
#define NSC_NAME_IPNODES_BYNAME "getipnodebyname"
#define NSC_NAME_IPNODES_BYADDR "getipnodebyaddr"
void
ipnode_init_ctx(nsc_ctx_t *ctx) {
ctx->dbname = NSS_DBNAM_IPNODES;
ctx->file_name = "/etc/inet/ipnodes";
ctx->db_count = 2;
nnam_db = make_cache(nsc_key_other,
NSS_DBOP_IPNODES_BYNAME,
NSC_NAME_IPNODES_BYNAME,
ipname_compar,
ipname_getlogstr,
ipname_gethash, nsc_ht_default, -1);
addr_db = make_cache(nsc_key_other,
NSS_DBOP_IPNODES_BYADDR,
NSC_NAME_IPNODES_BYADDR,
ipaddr_compar,
ipaddr_getlogstr,
ipaddr_gethash, nsc_ht_default, -1);
}
static int
ipaddr_compar(const void *n1, const void *n2) {
nsc_entry_t *e1, *e2;
int res, l1, l2;
e1 = (nsc_entry_t *)n1;
e2 = (nsc_entry_t *)n2;
if (e1->key.hostaddr.type > e2->key.hostaddr.type)
return (1);
else if (e1->key.hostaddr.type < e2->key.hostaddr.type)
return (-1);
l1 = e1->key.hostaddr.len;
l2 = e2->key.hostaddr.len;
res = memcmp(e1->key.hostaddr.addr, e2->key.hostaddr.addr,
(l2 > l1)?l1:l2);
return ((res) ? _NSC_INT_KEY_CMP(res, 0) : _NSC_INT_KEY_CMP(l1, l2));
}
static uint_t
ipaddr_gethash(nss_XbyY_key_t *key, int htsize) {
return (db_gethash(key->hostaddr.addr,
key->hostaddr.len, htsize));
}
static void
ipaddr_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) {
char addr[INET6_ADDRSTRLEN];
if (inet_ntop(argp->key.hostaddr.type, argp->key.hostaddr.addr, addr,
sizeof (addr)) == NULL) {
(void) snprintf(whoami, len, "%s", name);
} else {
(void) snprintf(whoami, len, "%s [key=%s addrtype=%d]",
name,
addr, argp->key.hostaddr.type);
}
}
static int
ipname_compar(const void *n1, const void *n2) {
nsc_entry_t *e1, *e2;
int res, l1, l2;
e1 = (nsc_entry_t *)n1;
e2 = (nsc_entry_t *)n2;
if (e1->key.ipnode.af_family > e2->key.ipnode.af_family)
return (1);
else if (e1->key.ipnode.af_family < e2->key.ipnode.af_family)
return (-1);
l1 = strlen(e1->key.ipnode.name);
l2 = strlen(e2->key.ipnode.name);
res = strncasecmp(e1->key.ipnode.name, e2->key.ipnode.name,
(l1 > l2)?l1:l2);
return (_NSC_INT_KEY_CMP(res, 0));
}
static uint_t
ipname_gethash(nss_XbyY_key_t *key, int htsize) {
return (cis_gethash(key->ipnode.name, htsize));
}
static void
ipname_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) {
(void) snprintf(whoami, len, "%s [key=%s:af=%d:flags=%d]",
name,
argp->key.ipnode.name,
argp->key.ipnode.af_family,
argp->key.ipnode.flags);
}