1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #pragma ident "%Z%%M% %I% %E% SMI"
27
28 /*
29 * Routines to handle getnet* calls in nscd
30 */
31
32 #include <string.h>
33 #include <stdlib.h>
34 #include <sys/types.h>
35 #include <sys/socket.h>
36 #include <netinet/in.h>
37 #include <arpa/inet.h>
38 #include "cache.h"
39
40 #define nam_db ctx->nsc_db[0]
41 #define addr_db ctx->nsc_db[1]
42
43 #define NSC_NAME_NETWORKS_BYNAME "getnetbyname"
44 #define NSC_NAME_NETWORKS_BYADDR "getnetbyaddr"
45
46 static int netaddr_compar(const void *, const void *);
47 static uint_t netaddr_gethash(nss_XbyY_key_t *, int);
48 static void netaddr_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
49
50 void
net_init_ctx(nsc_ctx_t * ctx)51 net_init_ctx(nsc_ctx_t *ctx) {
52 ctx->dbname = NSS_DBNAM_NETWORKS;
53 ctx->db_count = 2;
54 ctx->file_name = "/etc/inet/networks";
55
56 nam_db = make_cache(nsc_key_ces,
57 NSS_DBOP_NETWORKS_BYNAME,
58 NSC_NAME_NETWORKS_BYNAME,
59 NULL, NULL, NULL, nsc_ht_default, -1);
60
61 addr_db = make_cache(nsc_key_other,
62 NSS_DBOP_NETWORKS_BYADDR,
63 NSC_NAME_NETWORKS_BYADDR,
64 netaddr_compar,
65 netaddr_getlogstr,
66 netaddr_gethash, nsc_ht_default, -1);
67 }
68
69 static void
netaddr_getlogstr(char * name,char * whoami,size_t len,nss_XbyY_args_t * argp)70 netaddr_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) {
71 if (argp->key.netaddr.type == AF_INET) {
72 uint32_t net;
73 uchar_t *up;
74
75 net = htonl(argp->key.netaddr.net);
76 up = (uchar_t *)&net;
77
78 if (up[0])
79 (void) snprintf(whoami, len, "%s [key=%d.%d.%d.%d]",
80 name,
81 up[0], up[1], up[2], up[3]);
82 else if (up[1])
83 (void) snprintf(whoami, len, "%s [key=%d.%d.%d]",
84 name,
85 up[1], up[2], up[3]);
86 else if (up[2])
87 (void) snprintf(whoami, len, "%s [key=%d.%d]",
88 name,
89 up[2], up[3]);
90 else
91 (void) snprintf(whoami, len, "%s [key=%d]",
92 name,
93 up[3]);
94 } else {
95 (void) snprintf(whoami, len, "%s [key=%d, %d]",
96 name,
97 argp->key.netaddr.net, argp->key.netaddr.type);
98 }
99 }
100
101 static int
netaddr_compar(const void * n1,const void * n2)102 netaddr_compar(const void *n1, const void *n2) {
103 nsc_entry_t *e1, *e2;
104
105 e1 = (nsc_entry_t *)n1;
106 e2 = (nsc_entry_t *)n2;
107
108 if (e1->key.netaddr.type > e2->key.netaddr.type)
109 return (1);
110 else if (e1->key.netaddr.type < e2->key.netaddr.type)
111 return (-1);
112
113 return (_NSC_INT_KEY_CMP(e1->key.netaddr.net, e2->key.netaddr.net));
114 }
115
116 static uint_t
netaddr_gethash(nss_XbyY_key_t * key,int htsize)117 netaddr_gethash(nss_XbyY_key_t *key, int htsize) {
118 return (db_gethash(&key->netaddr.net,
119 sizeof (key->netaddr.net), htsize));
120 }
121